The Atlantic Coast Observer Network - Virginia/North Carolina/South Carolina
http://www.genserva.com/acon

SUMMARY OF CLIMATOLOGICAL DATA 




Happy Holidays!



DECEMBER 2011

...ABOVE NORMAL TEMPERATURES CONTINUE...
...EXCESS RAINFALL FOR NORTHERN AND WESTERN VIRGINIA,
WEST CENTRAL AND WESTERN NORTH CAROLINA...
...BELOW NORMAL RAINFALL ELSEWHERE...

...REMINDER: WE HAVE A NEW WEB ADDRESS...

http://www.genserva.com/acon


  • THE NOAA RESOURCES PAGE at CoCoRaHS    The National Oceanic and Atmospheric Administration (NOAA) has many exciting informative resources available for the public to view and learn about the oceans and atmosphere. CoCoRaHS in partnership with NOAA will continue to strive to bring you the latest products and information as it becomes available. To learn more about NOAA Resources listed on the CoCoRaHS Web site click on the NOAA logo on the left side of our home page: www.cocorahs.org or click here: NOAA Resources


  • WINTER "HAMSTER MAZE" IN ALASKA!    While winter is AWOL (as Member Russ Topping [CHT] notes) across our area, the weather is certainly wintry throughout much of Alaska. Very cold temps and wind chill temps and abundant snowfall have persisted through much of December (and beyond) creating wildly abnormal winter conditions. Contributor Kevin Shaw of ACON - DC/MD/DE sends this interesting reference on the wintry Alaska weather. Click here


  •   NEW WEB SERVER FOR ACON VA/NC/SC    Our old web server has ended the providing of personal webspace which we have used for years. Thus, our files have been migrated to a new commercial server. Our new web address for the group is http://www.genserva.com/acon For members of our group, this means we will have unlimited space for file storage and we can upload more of your photos to share. Of course, any photos you submit should be weather-related and more significant than just a "pretty picture". However, in the weather field there are just some "pretty pictures" worthy of notice, so submit an occasional "pretty picture" and it may just get posted!!


  • WEATHER IN SPACE?    Although outer space has none of the ingredients we usually think of for weather (moisture and temperatures to sustain life), it can still be a stormy place. The source of the storminess is our sun. The sun, like all active stars, is constantly in motion and often produces eruptions of gas and high energy particles into space (sort of like solar burps). Although solar particles continuously bombard the earth, during a solar eruption the"storm"of particles can be particularly intense. These storms can disrupt communication satellites and power grids on the ground. NOAA's Space Weather Prediction Center monitors and forecasts solar activity so that the effects of solar storms can be mitigated. To learn more about space weather, check out: Space Weather. (notes from the CoCoRaHS website)


  • MEASURING SNOW AND ICE - A REFRESHER    December is a good time of year to take a few minutes to go over how to measure snow and ice. These elements become so much a part of many of our daily lives as we approach the winter solstice. For a comprehensive read on the subject click here: Measuring Snow and Ice. (notes from the CoCoRaHS website)


  • DROUGHT MONITOR    http://www.drought.unl.edu/dm/monitor.html    More information on drought can be found at NOAA's Drought Information Center http://www.drought.noaa.gov/


  • REMINDER   All National Weather Service station data listed herein is preliminary and may be subject to change.  The data has not been certified and cannot be used in legal actions.  Only reports certified by the National Climatic Data Center in Asheville, NC can be used for these purposes.



  • ACON VA/NC/SC Member Station Extremes - DECEMBER 2011
    State
    Maximum Temperature
    Minimum
    Temperature
    Warmest
    Average
    Temperature
    Coldest
    Average
    Temperature
    Maximum
    Precipitation
    Minimum
    Precipitation
    Virginia
    76°
    Norfolk (ORF)
    14°
    Blacksburg
    50.3°
    Norfolk (ORF)
    39.4°
    Blacksburg
    4.90"
    Arlington
    1.12"
    Wallops Island
    North Carolina
    78°
    New Bern
    Wilmington
    Whiteville
    21°
    Asheville
    54.3°
    Cape Hatteras
    44.3°
    Asheville
    5.11"
    Asheville
    0.59"
    Wilmington
    South Carolina
    79
    Charleston
    Orangeburg
    24°
    Anderson
    54.9°
    Charleston
    48.6°
    Greenville-Spartanburg
    3.96"
    Greenville-Spartanburg
    0.48"
    North Myrtle Beach


    ( For an explanation of column headers in the following tables,
    please note the column denotations table below. )


    TEMPERATURE / WINDS/ ELEMENTS

    VIRGINIA
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
     
         STN  A      B    C     C1     D    E  F    G    H  I  J K K1  L  M      N   N1   N2   O P Q R R1 S    CWA 
         -------------------------------------------------------------------------------------------------------- 
         BCB 50.5  28.3  39.4   +5.6  65    15 14   11   0  0 23 0 78% 40 290  28   4.0       0 0 0 1  2 2400 AKQ 
         BRI 49.68 31.10 40.39  +4.09 62     5 18   12   0  0 18 0 67%                         0 0 0 0  0 0510/1600 LWX 
         CEN 50.7  33.2  42.0   +5.4  62 15,16 22 11,12  0  0 17 0 69% 44 301   7   2.6  225 0 0 0 0  1 2400 LWX
         CHT 52.0  32.7  42.4   +6.5  62.4  31 20.7 12   0  0 18 0 75% 16 180  15   0.5  180 0 0 0 1  0 2400 LWX 
         CHO 54.2  32.2  43.2   +5.4  65 15,16 20 11,12  0  0 17 0     25 300 7,15  3.4       0 0 0 0  1 2400 LWX
         DAN 55.9  32.8  44.4   +4.3  67  6,15 23 19,29  0  0 19 0 70% 37 280   7   4.5       0 0 0 0  0 2400 RNK 
         DCA 52.6  37.4  45.0   +5.3  63    15 29 12,19  0  0  7 0 65% 41 330   7   6.9       0 0 0 0  0 2400 LWX
         IAD 51.5  31.4  41.4   +4.8  62 15,16 19   12   0  0 20 0 69% 41 280   8   5.9       0 0 0 0  1 2400 LWX 
         GAV 56.81 35.10 45.95  +6.1  69   5,7 25 11,12, 0  0 15 0 69% 33 338   7             1 0 0 0  2 2400 AKQ
                                                    29
         HDV 52.3  33.3  42.8   +4.8  62  6,7, 22   11   0  0 19 0 73% 19 225  15,21     180 0 0 0 0  0 2400 LWX
                                           15
         LYH 54.2  31.4  42.8   +5.2  64 15,22 21   19   0  0 19 0 67% 33 200  23   3.9       0 0 0 0  1 2400 RNK 
         NPN 57.3  36.1  47.3   +4.7  72.1   7 24.3 29   0  0 10 0     38 250   7   2.5  340 0 0 0 0  0 2400 AKQ
         FHC 56.50 41.10 48.8   +4.7  72.3   7 31.2 19,  0  0  3 0 69% 45 248   7   3.0  202 0 0 0 0  2 2400 AKQ
                                                    29
         NOR 57.0  37.5  47.3   +3.9  73     7 26   19   0  0  8 0                             0 0 0 0  0 2400 AKQ 
         ORF 59.2  41.5  50.3   +6.2  76     7 28   29   0  0  4 0 66% 44 210   7   8.5       0 0 0 0  2 2400 AKQ 
         POR 56.7  39.1  47.9   +3.7  73.2   7 28.4 19   0  0  5 0 77% 54 270   7   4.3  263 0 0 0 0  2 2400 AKQ
                                                                       38 360  23 
         CTR 56.7  32.6  44.5   +4.1  70.9   7 22.2 11   0  0 21 0 76% 22 293   7   0.8  227 0 0 0 0  1 2400 AKQ 
         MEC 55.83 35.61 45.97        72     7 25 12,29  0  0 14 0                             0 0 0 0  1 1700 AKQ 
         RIC 57.1  35.5  46.3   +5.3  72     7 25   29   0  0 14 0 65% 64 310   7   6.6       0 0 0 0  2 2400 AKQ 
         ROA 54.2  33.7  43.9   +4.9  65    15 21   11   0  0 17 0 63% 41 320  28   5.2       0 0 0 0  0 2400 AKQ 
         WAL 55.5  35.6  45.5   +5.0  66     6 24   19   0  0 15 0     50 200  27   7.9       0 0 0 0  2 2400 AKQ 
         WOO 51.2  35.6  43.4   +4.0  66     6 23   11   0  0 13 0                             0 0 0 0  2 2400 AKQ 
         WSH 50.8  34.1  42.7   +5.78 64    15 23   11   0  0 15 0 71% 21 180  15   0.5  023 0 0 0 0  0 2400 LWX
    NORTH CAROLINA
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
         
         STN  A      B    C     C1    D    E  F      G  H  I  J K K1  L  M     N    N1   N2  O P Q R R1 S    CWA 
         ------------------------------------------------------------------------------------------------------- 
         AVL 54.7  33.9  44.3  +4.9  66    14 21    11  0  0 17 0 69% 41 330  7    6.3      1 0 0 2  2 2400 GSP 
         MRH 61.8  43.6  52.7  +4.3  73     6 28    18  0  0  4 0     44 250  7    7.9      0 0 0 0  0 2400 MHX 
         CLT 58.8  37.0  47.9  +5.5  69     6 25  2,29  0  0 12 0 65% 41 250 27    5.8      0 0 0 0  2 2400 GSP
         ECG 60.1  38.2  49.2  +4.8  75     7 25    19  0  0  8 0 71% 40 250  7    8.0      0 0 0 0  1 2400 AKQ 
         FAY 62.5  38.5  50.5  +5.1  76     7 27    19  0  0  6 0 65% 48 220  7    6.8      0 0 0 0  1 2400 RAH 
         GSO 56.6  36.8  46.7  +5.4  66  6,15 26 18.19  0  0 11 0 65% 47 260  7    6.5      0 0 0 0  0 2400 RAH 
         HSE 60.9  47.8  54.3  +5.0  72     5 30    19  0  0  1 0 73% 48 270 27    7.8      0 0 0 0  1 2400 MHX 
         HKY 56.8  36.0  46.4  +5.3  67    15 25    11  0  0 14 0     32 200 22    3.5      1 0 0 0  7 2400 GSP 
         LBT 62.5  39.2  50.8  +4.6  76  7,22 27 19,29  0  0 10 0 70% 46 260  7    5.4      0 0 0 0  3 2400 ILM 
         EWN 62.7  38.9  50.8  +4.0  78    22 25    19  0  0  7 0 71% 43 200  7    5.9      0 0 0 0  7 2400 MHX 
         MON                                                                                            2400 RAH 
         RDU 59.4  37.6  48.5  +5.0  72     6 26    29  0  0 11 0 71% 44 230 27    5.2      0 0 0 0  0 2400 RAH 
         RAL 59.7  35.1  47.4  +4.4  71     5 25 2,18,  0  0 14 0     28      27             0 0 0 0  0 2400(T)/1930(P) RAH
                                                 19,29
         ROX 56.8  36.2  46.8  +3.9  38  5,6  24 11,12  0  0 13 0 73% 37 180 27        180 0 0 0 0  0 2200 RAH
                                           15  
         WHI 63.4  38.3  50.8  +5.7  77.9  22 25.7  19  0  0  8 0 74% 31 242  7    2.9 138 0 0 0 0  0 2400 ILM 
         ILM 64.8  40.5  52.7  +4.1  78    22 28    19  0  0  4 0 72% 49 220 27    6.6      0 0 0 0  1 2400 ILM
    SOUTH CAROLINA
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
        
         STN  A      B    C     C1    D    E  F      G  H  I  J K K1  L  M     N   N1   N2   O P Q R R1 S    CWA 
         ------------------------------------------------------------------------------------------------------- 
         AND 59.5  38.1  48.8  +5.1  73    16 24    29   0 0  9 0     44 240  7   4.7       0 0 0 0  5 2400 GSP 
         CAE 64.4  38.7  51.5  +4.8  77  6,16 27    29   0 0  9 0 67% 43 270  7   4.4       0 0 0 0  4 2400 CAE 
         CRE 63.4  41.1  52.3  +3.5  76    16 30 19,29   0 0  5 0 72% 46 210 27   6.1       0 0 0 0  3 2400 ILM 
         CHS 66.9  42.9  54.9  +4.1  79    22 31  2,19   0 0  3 0     52 270  7   6.7       0 0 0 0  2 2400 CHS
         FLO 64.5  39.5  52.0  +4.9  78    22 28 19,29   0 0  5 0 67% 44 250  7   6.0       0 0 0 0  4 2400 ILM 
         GSP 58.3  38.9  48.6  +4.6  69    16 25    29   0 0  9 0 69% 40 230 27   5.3       1 0 0 0  7 2400 GSP 
         OGB 65.4  39.7  52.5  +4.6  79    22 28 19,29   0 0  8 0     48 270  7   4.6       0 0 0 0  4 2400 CAE
    NEARBY STATIONS
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
        
         STN  A      B    C     C1    D     E  F     G   H  I  J K K1  L  M     N   N1   N2   O P Q R R1   S    CWA 
         ---------------------------------------------------------------------------------------------------------- 
         TRI 54.2  31.4  42.8  +5.0   67     5 21   18  11  0 18 0     45 240  27  3.1       0 0 0 0  8   2400 MRX 
         DAV 40.16 25.55 32.85        58     5  9   11   0  9 24 0                                         0700 PBZ

    (Please note the column denotations table below.)
    PRECIPITATION / BAROMETRIC PRESSURE

    VIRGINIA
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
        
         STN  T      T1      U  U1    V    V1   W X   Y      Z  1   2 3    4    5     6   6A   7    7A    8    S 
         --------------------------------------------------------------------------------------------------------- 
         BCB  3.62  +0.67  1.45  7  1.45     7  9 1 43.68    T 7,8  6 1    T    T                             2400
                                                          18,24,27,28
         BRI  3.82  +1.09  2.01  7  2.22   6-7  6 1 49.68           0 0  0.0  3.5  30.30  23 29.48  28        0510/1600 
         CEN  4.56  +1.60  2.52  7  2.52     7  6   48.83    T 29   1 0    T  0.6  30.67  11 29.43  27 30.05  2400 
         CHT  4.53  +1.46  2.14  7  2.14     7  9 2 48.37           0 0  0.0    T  30.697 11 29.424 27 30.188 2400 
         CHO  4.36  +1.21  1.98  7  1.98   6-7  8 1 48.31                          30.69  11 29.45  27        2400 
         DAN  2.19  -1.08  0.72  7  0.72     7  6 0 39.01           0 0  0.0  0.0  30.68  11 29.47   7        2400 
         DCA  4.90  -1.85  3.10  7  3.10     7  7 1 45.89    T 7,17 2 0    T    T            29.43  27        2400 
         IAD  4.46  -1.50  2.14  7  2.14     7  6 2 44.54    T 29   1 0    T  0.6            29.43   7        2400 
         GAV  3.21  -1.56  1.65  7  1.65     7  8 1 45.14           0 0  0.0    T  30.69  11 29.44  7, 30.18  2400
                                                                                                    27
         HDV  4.74  +1.47  2.58  7              8 1 55.53           1 0    T  0.5  30.54   6 29.60  23        2400 
         LYH  4.61  +1.37  1.80  7  2.06   7-8  8 1 38.98           0 0  0.0    T  30.70  11 29.47   7        2400 
         NPN  1.93  -1.85  0.49 27  0.49    27  6 0 58.50           0 0  0.0  0.0  30.67  11 29.45   7        2400 
         FHC  1.38  -1.88  0.47 27  0.47    27  6 0 37.10           0 0  0.0  0.0  30.623 11 29.458  7 30.187 2400 
         NOR  1.73  -1.65  0.55 21  0.55    21  7 0 52.32           0 0  0.0  0.0                             2400 
         ORF  1.56  -1.70  0.52 21  0.53 20-21  8 0 46.74           0 0  0.0  0.0  30.64  11 29.46   7        2400 
         POR  1.86  -1.36  0.60 21  0.60    21  7 0 51.12           0 0  0.0  0.0  30.65  11 29.49   7 30.207 2400 
         CTR  2.21  -1.88  0.83  7  0.84   7-8 10 0 47.42           0 0  0.0  0.0  30.67  11 29.40   7 30.175 2400 
         MEC  2.30         1.03  8  1.17   7-8  6 1 64.33           0 0  0.0  0.0  30.42  3, 29.26  26 29.84  2400
                                                                                          11            
         RIC  2.03  -1.23  0.78  7  0.78     7  6 0 47.54           0 0  0.0  0.0  30.70  11 29.44   7        2400 
         ROA  4.19  +1.25  1.70  7  1.80   6-7  9 2 45.03           0 0    T    T  30.70  11 29.52  27        2400 
         WAL  1.12  -2.31  0.48 27  0.48 26-27  6 0 36.23           0 0  0.0  0.0  30.47  24 29.17  27        2400 
         WOO  3.41  +0.68           1.71   7-8  8 1 50.84           0 0  0.0  2.0  30.54   3 29.72  28        2400 
         WSH  3.61  +0.11  1.92  7  1.92     7  8 1 51.38   T 7,18, 4 0    T  1.5  30.74  11 29.49  27        2400 
                                                              28,29
    NORTH CAROLINA
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
        
         STN  T      T1      U  U1    V    V1   W X   Y      Z    1 2  3   4    5     6    6A   7    7A    8     S 
         ---------------------------------------------------------------------------------------------------------- 
         AVL  5.11  +1.52  1.64 22  1.70 22-23 10 1 46.04    T 7,8, 4  0    T    T  30.59   3 29.58  27         2400
                                                              27,28
         MRH  1.24  -2.28  1.11 27  1.11    27  6 1 42.52                 0.0  0.0  30.57  11 29.64  27         2400 
         CLT  3.41  +0.16  1.28 21  1.32 20-21  7 1 44.52                 0.0  0.0  30.62  11 29.55   7         2400 
         ECG  0.94  -1.62  0.36 27  0.36    27  7 0 34.43                           30.62  11 29.54  27         2400 
         FAY  0.70  +1.95  0.50 27  0.50    27  4 0 35.58                 0.0  0.0            29.50   7         2400 
         GSO  3.02  +0.04  0.91 21  0.90 20-21  6 0 43.55                 0.0  0.0            29.50   7         2400 
         HSE  3.16  -1.11  2.20 27  2.20    27  8 1 63.31                 0.0  0.0  30.57   3 29.60  27         2400 
         HKY  3.66  -0.04  1.12 27  1.12    27  8 1 43.99                 0.0  0.0  30.59  11 29.52   7         2400 
         LBT  0.79  -2.10  0.59 27  0.59    27  3 0 41.33                           30.58  11 29.55   7         2400 
         EWN  0.73  -2.67  0.40 27  0.40    27  6 0 38.89                 0.0  0.0  30.61  11 29.61  27         2400 
         MON               [through October 2011]=> 38.01                 0.0  0.0                              2400 
         RDU  2.05  -1.02  0.56 27  0.62 16-17  6 0 43.70                 0.0  0.0            29.50   7         2400 
         RAL  2.33  -0.71           0.65 27-28  7 2 40.38                 0.0  0.0  30.60   3 29.50   7         0730 
         ROX  2.98  -0.38  0.75  7  0.75     7  7 0 43.98                 0.0  0.0  30.70  11 29.56 7,27 30.25  2200
         WHI  0.62  -2.42  0.39 27  0.39    27  5 0 51.15                 0.0  0.0  30.576  3 29.585  7  30.219 2400 
         ILM  0.59  -3.03  0.50 27  0.50    27  5 0 43.96                 0.0  0.0  30.56   3 29.64  27         2400
    SOUTH CAROLINA
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
        
         STN  T      T1     U  U1   V    V1   W X   Y     Z   1  2 3  4     5     6     6A   7    7A    8     S 
         -------------------------------------------------------------------------------------------------------  
         AND  3.51  -0.60 1.32 27  1.32    27  8 1 35.89               0.0  0.0  30.57  11 29.68   7         2400 
         CAE  1.11  -2.11 0.76 27  0.76    27  4 0 37.90               0.0  0.0  30.56  11 29.64   7         2400 
         CRE  0.48  -2.98 0.17 28  0.17    28  5 0 32.93                         30.55   3 29.65   7         2400 
         CHS  0.65  -2.46 0.29 27  0.29    27  6 0 37.01               0.0  0.0  30.52   3 29.70   7         2400 
         FLO  1.25  -1.76 0.91 27  0.91    27  4 0 28.46               0.0  0.0  30.55   3 29.65   7         2400 
         GSP  3.96  -0.15 1.29 27  1.29    27  9 1 45.56               0.0  0.0  30.58  11 29.62   7         2400 
         OGB  1.90  -1.42 1.44 27  1.44    27  6 1 37.47                         30.55  11 29.68   7         2400
    NEARBY STATIONS
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
        
         STN  T      T1     U  U1   V      V1  W X   Y      Z  1  2  3   4      5     6   6A   7    7A 8      S 
         -------------------------------------------------------------------------------------------------------- 
         TRI  4.10  +0.73 1.46  7 1.72   6-7 10 1 47.68     T 7,8 2  0     T     T  30.57 11 29.56  27        2400 
         DAV  4.84        1.62 10            14 1 78.84  10.1 10  12 3  16.4  40.5     

    Virginia:

    Arlington - " OVERALL...TEMPERATURES THIS DECEMBER WERE WELL ABOVE NORMAL...AND MORE REPRESENTATIVE OF THE WASHINGTON DC CLIMATE FOR LATE NOVEMBER OR EARLY MARCH. THE AVERAGE MONTHLY TEMPERATURE OF 45.0 F WAS TIED WITH 1923 FOR THE 6TH WARMEST DECEMBER ON RECORD FOR WASHINGTON... AND WAS THE WARMEST DECEMBER SINCE 2001 WHEN IT WAS 45.5 F. COLD AIR REMAINED WELL NORTH THIS DECEMBER...SPARING THE WASHINGTON DC AREA FROM EXPERIENCING WINTER-LIKE COLD. THE MAX TEMPERATURE AT REAGAN NATIONAL AIRPORT...DCA...WAS NEVER LOWER THAN 43 F ON ANY DAY THIS MONTH. DECEMBER 2011 WAS THE FIRST DECEMBER ON RECORD THAT DAILY MAX TEMPERATURES NEVER DROPPED BELOW THE 40-DEGREE MARK. THE MIN TEMPERATURE DID NOT DROP BELOW 29 F ON ANY DAY THIS DECEMBER...WHICH IS THE FIRST TIME ON RECORD IN DECEMBER. THE MIN TEMPERATURE AT DCA FAILED TO REACH THE FREEZING MARK ON ALL BUT SEVEN TIMES THIS MONTH...WHICH WAS TIED WITH FOUR OTHER DECEMBERS...1972...1974...1984...2007 FOR THE LEAST NUMBER OF FREEZING DAYS IN DECEMBER. ONE DAILY TEMPERATURE RECORD WAS BROKEN IN WASHINGTON IN DECEMBER. A MIN TEMPERATURE OF 55 F ON THE 6TH BROKE THE PREVIOUS RECORD DAILY HIGH MIN TEMPERATURE OF 54 F IN 1998 AND PREVIOUS YEARS. DECEMBER 2011 WAS WETTER THAN NORMAL...MAINLY DUE TO THE HEAVY RAINFALL ON THE 6-7TH. THE 3.10 INCHES OF PRECIPITATION MEASURED ON THE 7TH WAS NOT ONLY THE ALL-TIME WETTEST SINGLE DAY IN DECEMBER FOR WASHINGTON DC...BUT WAS THE MOST PRECIPITATION MEASURED IN ANY CALENDAR DAY FROM NOVEMBER THROUGH MARCH. A TRACE OF SNOW WAS REPORTED AT DCA ON THE 7TH AND 17TH...BUT NO MEASURABLE SNOW WAS OBSERVED DURING THE MONTH. DECEMBERS WITH NO MEASURABLE SNOW HAVE OCCURRED 29 OTHER TIMES SINCE 1888...WHICH AVERAGES OUT TO ABOUT ONCE EVERY FOUR YEARS. " - [ + + ] - Notes from NWS Sterling, VA

    Bridgewater - " The month was rather quiet with no storms of any kind. There was plenty of rain. At this writing, there is no snow in sight. However, there is plenty of time for snow in the next few months. My fearless forecast is that we will get more snow and we will get more cold weather. This past year was a wet one with the precipitation being 10 inches above normal. In 2010, the precipitation was 7 inches below normal. An unusual snowstorm hit the valley in October. The snowfall was below normal. The 22 thunderstorms were about normal. There were no severe storms of any kind during the year. Several of the thunderstorms were rather sharp but caused very little damage. The average temperature was above average. In my 50 years of keeping records on temperature, the temperature has been steadily going up. This has been a good year for vegetation to grow. My comments have been based on the weather observed here in Bridgewater. The average temperature for the year was 54.41 and total rainfall measured 48.65". Snowfall for the calendar year was 11.45" and thunder was observed on 22 days. Bridgewater, Virginia during 2011. Other places might have different readings. * The snowfall was below normal for the year. " - [ + + ] - Clayton sends these notes

    Chantilly - Russ reports: " December temperatures averaged much above normal. The mean monthly temperature was 42.4 (+6.5). The mean high temperature was 52.0 (+6.1) and the mean low temperature was 32.7 (+6.8). It ranked in the top five warmest Decembers on record. A record high low temp was set on the 6th (56.6) and 20th (44.4). Precipitation was 1.46" above normal, but with no snow and only a trace of sleet. Winter is AWOL, so far! *Please note, anemometer is currently partially obstructed from the North and East " - [ + + ]

    Dulles - from NWS Sterling (KLWX): " OVERALL...TEMPERATURES THIS DECEMBER WERE WELL ABOVE NORMAL...AND MORE REPRESENTATIVE OF THE DULLES CLIMATE FOR LATE NOVEMBER OR EARLY MARCH. THE AVERAGE MONTHLY TEMPERATURE OF 41.4 F WAS THE 5TH WARMEST DECEMBER ON RECORD FOR DULLES. COLD AIR REMAINED WELL TO OUR NORTH THIS DECEMBER...SPARING THE DULLES AREA FROM EXPERIENCING WINTER-LIKE COLD. THE MAX TEMPERATURE AT IAD WAS NEVER LOWER THAN 40 F ON ANY DAY THIS MONTH. DECEMBER 2011 WAS THE FIRST DECEMBER ON RECORD THAT DAILY MAX TEMPERATURES NEVER DROPPED BELOW THE 40-DEGREE MARK. THREE DAILY TEMPERATURE RECORDS WERE BROKEN AT IAD THIS MONTH. A MIN TEMPERATURE OF 56 F ON THE 6TH AND 43 F ON THE 20TH BOTH SET DAILY HIGH MIN TEMPERATURE RECORDS. A MAX TEMPERATURE OF 61 F ON THE 21ST BROKE THE PREVIOUS RECORD OF 60 F PREVIOUSLY SET IN 1998. DECEMBER 2011 WAS WETTER THAN NORMAL...MAINLY DUE TO THE HEAVY RAINFALL ON THE 7TH AND 22ND. THE 2.14 INCHES OF PRECIPITATION MEASURED ON THE 7TH AND 1.12 INCHES ON THE 22ND BOTH SET NEW DAILY MAX RAINFALL RECORDS. THE RAINFALL ON THE 7TH WAS THE 3RD WETTEST CALENDAR DAY ON RECORD IN DECEMBER FOR DULLES. A TRACE OF SNOW WAS REPORTED AT IAD ON THE 29TH ...BUT NO MEASURABLE SNOW WAS OBSERVED DURING THE MONTH. A DECEMBER WITH NO MEASURABLE SNOW HAS OCCURRED 14 OTHER TIMES SINCE 1962...WHICH AVERAGES OUT TO ABOUT ONCE EVERY 3-4 YEARS. " - [ + + ]

    Glen Allen - Lowell sends these additional notes: " December was a very warm month as the monthly mean temperature was 46.0F, a +6.1F departure from average, and was drier than average when compared to my Glen Allen records. The average temperature this December was 13.3F warmer than last December which was very cold. December didn't set any daily records for warmth but was constantly warm. Glen Allen had 6 days of >= 65F and 12 days of >=60F. The lowest temperature was 25F and that was 9F above the record highest minimum temperature for December at this station. The lowest barometric pressure of the month was 29.44 inches recorded on the 7th and 27th; the highest was 30.69 inches on December 11th. The mean temperature for the Richmond International Airport was 46.3F and that made December the 6th warmest in the past 114 years and the 8th warmest in the past 132 years. (The separation in records was done as the mean temperatures from 1880 to 1896 aren't very accurate.) The two years in the above period that were warmer were 1891 and 1889. The mean temperature used for 1891 for Richmond was 1.8F warmer than the mean for Norfolk for the same period. The mean for Richmond in 1889 was only 0.3F less than Norfolk when comparing the mean temperatures between 1897 and 2010. On average Norfolk runs 3.7F warmer for December than Richmond. Richmond's December minimum temperature was 25F that ties 1994 for the highest monthly minimum temperature in the past 114 years. Also Richmond's lowest daily mean temperature was 36.5F and that was highest recorded in the past 114 years for December. December didn't even have a trace of snow and this has happened only 12 times in the past 113 years; the average snowfall for December is 2.1 inches. The 2.03 inches of precipitation for December was -1.23 inch departure and the 27th driest December of the past 114 years. The only stormy weather came on the 7th in a thunderstorm associated with a cold front that gave Glen Allen winds to 33 mph. Just 3.6 miles southwest of this station winds moved a heavy propane gas grill across a deck, estimated winds of 50 to 60 mph, and winds of 64 mph were reported at Richmond International Airport. [ + - ] "

    Herndon - Randy reports: " December was above normal for temperature and precipitation. The temperatures ranged between a high of 62 and a low of 22; with periods of very warm temperatures scattered through out the month; we averaged almost 5 degrees above normal. On the precipitation side, the month was 1.47" above normal with 4.74" measured. We had a very heavy rainfall on the 7th when 2.58" fell causing some minor flooding in the area. We also had another wet period just before Christmas. We had only a trace of snow on the 29th. For the year, we ended up about 9" above normal for precipitation and with only 0.5" of snow that occurred in October. " - [ + + ]

    Norfolk - from NWS Wakefield (AKQ) " DECEMBER 2011 FINISHES WITH AN AVERAGE MONTHLY TEMPERATURE OF 50.3 F...RANKING AS THE 8TH WARMEST DECEMBER ON RECORD. BASED ON THE PERIOD 1981-2010...THE NORMAL DECEMBER AVERAGE TEMPERATURE AT NORFOLK IS 44.1 F. AN INTERESTING NOTE IS THE LARGE DIFFERENCE BETWEEN DECEMBER 2011 (50.3 F/8TH WARMEST) AND DECEMBER 2010 (35.1 F/4TH COLDEST). IN ADDITION...THE AVERAGE ANNUAL TEMPERATURE FOR 2011 WAS 62.4 F...RANKING AS THE 2ND WARMEST ON RECORD. BASED ON THE PERIOD 1981-2010...THE NORMAL ANNUAL VALUE AT NORFOLK IS 60.1 F. THE TOP 5 WARMEST YEARS ARE LISTED BELOW: 1) 62.7 F (1990) 2) 62.4 F (2011) 3) 62.38 F (1991) 4) 61.92 F (1994) 5) 61.9 F (1998) TEMPERATURE RECORDS AT NORFOLK DATE BACK TO 1874 FOR DAILY TEMPERATURE DATA AND 1871 FOR AVERAGE MONTHLY AND ANNUAL TEMPERATURE. " - [ + - ] 

    Portsmouth - " December's average temperature (47.9) was 3.7 ABOVE NORMAL. Rainfall was BELOW NORMAL by 1.36" and was 58% of normal relative to normal Decembers for the period from 1976 to 2010. Cold frontal passages occurred on the 7th, 9th, 16th, 23rd, 26th, 27th, 28th and 31st. On 7 December dates, frost was recorded. December 2011 was the 8th driest December in the database to 1976. December 2011 TIED with 1991 as the 7th warmest December in the database to 1976. STATION RECORDS: 7th - WIND GUST 54mph [previous 46mph 1983]; 22nd - TEMPERATURE Maximum Minimum 58 [previous 56 1990]; 27th - WIND GUST 36mph [previous 30mph 2004]. " - [ + - ] 

    Richmond - from NWS Wakefield (AKQ) " DECEMBER 2011 FINISHES WITH AN AVERAGE MONTHLY TEMPERATURE OF 46.3 F...RANKING AS THE 8TH WARMEST DECEMBER ON RECORD. BASED ON THE PERIOD 1981-2010...THE NORMAL DECEMBER AVERAGE TEMPERATURE AT RICHMOND IS 41.1 F. AN INTERESTING NOTE IS THE LARGE DIFFERENCE BETWEEN DECEMBER 2011 (46.3 F/8TH WARMEST) AND DECEMBER 2010 (33.3 F/7TH COLDEST). IN ADDITION, THE AVERAGE ANNUAL TEMPERATURE FOR 2011 WAS 60.77 F...RANKING AS THE 4TH WARMEST ON RECORD. BASED ON THE PERIOD 1981-2010...THE NORMAL ANNUAL VALUE AT RICHMOND IS 58.8 F. THE TOP 5 WARMEST YEARS ARE LISTED BELOW: 1) 61.4 F (1891) 2) 61.0 F (1990) 3) 60.8 F (1890) 4) 60.77 F (2011) 5) 60.7 F (2006) TEMPERATURE RECORDS AT RICHMOND DATE BACK TO 1897 FOR DAILY TEMPERATURE DATA AND 1881 FOR AVERAGE MONTHLY AND ANNUAL TEMPERATURE. " - [ + - ] 

    Woodstock - Lauck adds these year-end stats: " The average of monthly average temps was 56.2 and that was a +0.9 departure from normal. The max temp was 96 on July 23rd while the minimum temperature of 10 occurred on the 22nd of January. 50 days with thunder were recorded and the total precipitation for the year was 50.84" Total snowfall for the calendar year was 12.8" " - [ + + ] 

    North Carolina:

    Greensboro - NWS RAH reports: " 12/6 NEW RECORD HIGH MINIMUM TEMPERATURE...60 BREAKS THE OLD RECORD OF 53 SET IN 1998; 12/22 NEW RECORD HIGH MINIMUM TEMPERATURE...60 BREAKS THE OLD RECORD OF 54 SET IN 1956. " - [ + + ] 

    Raleigh - NWS RAH notes: " 12/6 NEW RECORD HIGH MINIMUM TEMPERATURE...60 BREAKS THE OLD RECORD OF 60 SET IN 1998; 12/21 TIED RECORD HIGH MINIMUM TEMPERATURE...55 TIES THE OLD RECORD OF 55 SET IN 1984; 12/22 NEW RECORD HIGH MINIMUM TEMPERATURE...61 BREAKS THE OLD RECORD OF 56 SET IN 1956. " - [ + - ]

    Raleigh - Bob notes: " VERY NICE WEATHER DURING DECEMBER WITH THE AVERAGE DAILY TEMPERATURE OVER 4 DEGREES ABOVE NORMAL. PRECIPITATION WAS ALSO ON THE LIGHT SIDE WITH 2.33" OF RAIN WHICH IS -0.71' BELOW NORMAL. FOR THE YEAR, PRECIPITATION WAS 2.58" BELOW NORMAL. THERE WAS NO THREAT OF WINTRY PRECIPITATION OR SEVERE WEATHER DURING THE MONTH. " - [ + - ]

    Nearby Locations:

    Tri-Cities - from NWS MRX, Morristown, TN: " Tri-Cities received an annual total of 47.68 inches of precipitation in 2011, which was 6.67 inches above normal. It ranked as the 14th wettest year on record at Tri-Cities. The wettest year of the 73 years of observations at Tri-Cities was back in 2003, when 65.64 inches of precipitation was recorded. The annually averaged temperature at Tri-Cities in 2011 was 57.7 degrees, which was 2.2 degrees above normal. It tied with 1991 and 1953 as the 5th warmest year on record at Tri-Cities. The warmest year at Tri-Cities was back in 1990, when the annually averaged temperature was 58.2 degrees. " - [ + + ]



    COLUMN DENOTATIONS:

    A  maximum mean temperature T total precipitation (inches)
    T1 departure from normal
    B  minimum mean temperature U maximum calendar day precipitation (inches)
    C  monthly mean temperature
    C1 departure from normal
    U1 date of maximum calendar day precipitation
    D  maximum temperature V date(s) of maximum daily precipitation
    E  date(s) of maximum temperature V1 maximum 24-hour precip. & date(s)
    F  minimum temperature W number of days with precip. >= .01"
    G  date(s) of minimum temperature  X number of days with precip. >= 1.0"
    H  days with maximum temperature >=90 Y year-to-date precipitation (inches)
    I  days with maximum temperature <=32 Z maximum calendar day snowfall (inches)
    J  days with minimum temperature <=32 VRB Variable
    K  days with minimum temperature <= 0 1 date of maximum calendar day snowfall (inches)
    K1 average relative humidity 2 number of days with snowfall
    L  peak wind gust (miles per hour)  3 number of days with snowfall >= 1.0"
    M  direction of peak wind gust 4  total snowfall for month (inches)
    N  date(s) of peak wind gust  5 total snowfall for 2007-2008 season (inches)
    N1   average wind speed (miles per hour) 6 maximum barometric pressure (inches)
    N2 dominant wind direction 6A date of maximum barometric pressure
    O  number of days with thunder  7 minimum barometric pressure (inches)
    P  number of days with hail 7A date of minimum barometric pressure
    Q  number of days with glaze 8   average sea-level pressure
    R  number of days with ice pellets STN  Station
      NR not recorded
    R1 number of days with dense fog [1/4 mile and less visibility] (i) incomplete data
    S  local observation time for temps/precipitation (M) missing, if listed in data table
     ~ "about" E estimated
     +  additional indeterminate number of days CWA - NWS Office County Warning Area



    For Weather Headlines visit the National Weather Service Homepage
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    National Weather Service Web Sites & Current Email Addresses
    Within or Nearby the ACON VA/NC/SC Area Can Be Found At:

         NWS Washington/Baltimore, VA/MD
         NWS Wakefield, VA
         NWS Blacksburg, VA
         NWS Raleigh, NC
         NWS Newport/Morehead City, NC
         NWS Wilmington, NC
         NWS Greenville-Spartanburg, SC
         NWS Columbia, SC
         NWS Charleston, SC
         NWS Morristown, TN

         National Weather Service Homepages

         National Climatic Data Center, Asheville, NC

    STATION / LOCATION (MILES & DIRECTION FROM MAIN POST OFFICE)/OBSERVER / YEAR RECORDS BEGAN / EMAIL ADDRESS:

       Coast Guard Air Station 36-15-47N 076 10-58W 11M
    AKQ    Wakefield, VA NWS Wakefield Municipal Airport 36-58-53N 077-00-04W 33M  
    DCA    Arlington, VA Washington, DC, Reagan Washington National Airport 38-50-54N 077-02-03W 18M WSH   Washington, VA  David Yowell runamok@runamok.com
    BCB    Blacksburg, VA NWS Virginia Tech Airport 37-13N 080-25W   
      WOO  Woodstock, VA 5NW Lauck Walton 12/1/85 jwalton@shentel.net
       LDY Ladysmith, VA Danny Jessee 2003 STATION CLOSED 8/31/2010 danny@dannyjessee.com
    BRI     Bridgewater, VA Clayton Towers Ctowers19@aol.com WAL   Wallops Island, VA 37 56'26" N 75 27'47" W Wallops Flight Facility Airport
    CEN  Centreville, VA Paul Bassett 1985, 38 50.9788' N LAT. 77 25.6374' W LON. | Elevation 324' | m.psb@verizon.net AVL    Asheville, NC  Asheville Regional Airport 35-25-55N 082-32-15W 670M
    CHO   Charlottesville, VA  Charlottesville-Albemarle Airport ASOS  (Rappahannock County) 38-08-18N 078-27-21W 192M MRH    Beaufort, NC  Michael J. Field Airport 34-44-01N 076-39-38W 3M
    DAN  Danville, VA, Danville Regional Airport, 36-34-22N 079-20 10W 175M  CLT    Charlotte, NC NWS Charlotte/Douglas International Airport 35-12-48N 080-56-55W 220M
    IAD   Dulles - Washington-Dulles International Airport  38-56-05N 077-26-51W 93M   
    FCH    Falls Church, VA Erica Page 3/7/94 Windie1970@aol.com HKY  Hickory, NC 
    HAM    Hampton, VA 5NE Dave Kessel 1989 davidkessel@cox.net ECG  Elizabeth City, NC, 
    LYH     Lynchburg, VA NWS Lynchburg Regional Airport 37-19-15N 079-12-24W 295M ILM     Wilmington, NC NWS New Hanover International Airport 34-16-06N 077-54-22W 9M
    CTR  Winterpock in Chesterfield County, VA Albert Arnold 06/03 FAY  Fayetteville, NC Fayetteville Regional Airport, 34-59-22N 078-52-48W 55M
      GSO   Greensboro, NC NWS Piedmont Triad International Airport 36-05-51N 079-56-37W 275M
    CHT   Chantilly, VA Russ Topping -  12/2006  russ.topping@gmail.com - new location December 2006 HSE    Cape Hatteras, NC  Mitchell Field 35-13-56N 075-27-21W 3M
    HDV    Herndon, VA  Randoplh W. Ashby, 3.3 SM South, Lat: 38.922127, Lon: -77.38015, Elev: 390'. Randolph_Ashby@Raytheon.com LBT    Lumberton, NC  Lumberton Municipal Airport 34-36-26N 079-03-36W 37M
    GAV - Glen Allen, Henrico County, VA - Lowell Koontz  8/1/08  wwkoontz@verizon.net EWN    New Bern, NC  Craven County Regional Airport 36-04-03N 077-02-50W 3M
      MON    Moncure, NC  Chatham County - Mac McIlwain mac.mcilwain@embarqmail.com
      RAL    Raleigh, NC 7NNW  Bob Woodson -  6/1/93 kf4mmm@qsl.net
    LKU     Louisa, VA 1N Joseph Bowers 1944 - NWS ID  44-5050-02 STATION CLOSED RDU   Raleigh-Durham, NC Raleigh-Durham International Airport 35-52-14N 078-47-11W 130M
    LOU     Louisa, VA 6S John Bullock (about 1970) STATION CLOSED ROX    Roxboro, NC 2SE Merriell A. Jay 1/93
         WHI   North Whiteville, NC Christopher Crawley 12/10 34.413744N / 078.751908W
    LYH     Lynchburg, VA NWS Lynchburg Regional Airport 37-19-15N 079-12-24W 295M ILM     Wilmington, NC NWS New Hanover International Airport 34-16-06N 077-54-22W 9M
    NEW    Newmarket, VA 2W Joyce Winfree STATION CLOSED 5/31/10 joywood@shentel.net CHS   Charleston, SC NWS Charleston Air Force Base 32-53-56N 080-02-26W 13M
    NPN     Newport News, VA 7N Gary Leonard -  6/91 GaryMLeonard@aol.com CAE    Columbia, SC NWS Columbia Metropolitan Airport 33-56-31N 081-07-05W 73M 
    NOR     Norfolk, VA 3NE Jim Fentress 6/1/77 FLO    Florence, SC Florence Regional Airport 34-11-16N 079-43-51W 44M
    ORF     Norfolk, VA 5NE 36-54-13N 076-11-31W 14M  1871 GSP   Greenville-Spartanburg, SC NWS Greenville-Spartanburg Airport 34-53-02N 082-13-15W 286M 
    POR     Portsmouth, VA 36.81° North 76.33° West 3S Bill Trotter -  7/1/76 wxr@cox.net CRE    North Myrtle Beach, SC Grand Strand Airport 33-48-42N 078-43-26W 10M
    MEC     Mechanicsville, VA Glen Martin 11/19/91 OGB   Orangeburg, SC  Orangeburg Municipal Airport 33-27-50N 080-51-13W 59M
    FHC    Norfolk, VA  Fred Heutte Center 36° 54'N 76° 16'W 01/01/03 fhcgarden@cox.net AND   Anderson, SC 
    RIC     Richmond, VA Richmond International Airport 37-30-40N 077-19-24W 50M TRI     Tri-cities, TN  (Bristol / Johnson / Kingsport), Tri-City Regional Airport 36-28-47N 082-23-56W 474M 
    ROA    Roanoke, VA Roanoke Regional Airport 37-19-01N 079-58-27W 362M DAV  Davis, WV Dave Lesher canaanwx@canaantv.tv