The Atlantic Coast Observer Network - Virginia/North Carolina/South Carolina
http://members.cox.net/wxr/acon.htm

SUMMARY OF CLIMATOLOGICAL DATA 


JANUARY 2010


... JANUARY STARTS AND ENDS COLD WITH A PROLONGED MILDER PERIOD MID-MONTH...
... MONTH ENDS WITH COASTAL STORM THAT BRINGS HEAVY SNOW AND RAIN ...
As the data and your memory point out, January was a slightly colder-than-unsual-January-month Just a brief warm-up from mid-month to the last few days of the month when cold temperatures and a coastal storm brought a return to winter reality.
  • FOOT'S FORECAST Here's a refreshing forecast source! Foot's Forecast at http://www.footsforecast.org The "forecaster's" have a high forecast accuracy rate on this winter's storms! And there are quite a few resources you may not have links to. Worth the time to explore, indeed!

  • THE ECONOMICS AND SOCIAL BENEFITS OF NOAA DATA AND PRODUCTS It is often said that "NOAA is where science gains value for the Nation." The NOAA Economics web site is a central source of information on the economic value and use of NOAA's data & products, in both industry and society. NOAA's environmental observations, analyses, data products, and services provide valuable information that is routinely used in decision making by consumers, industries, and policymakers. For instance, NOAA weather and climate data are used in countless industries, including agriculture, utilities, transportation, construction, engineering, health care, insurance, manufacturing, education, and tourism. In fact, the Department of Commerce's Bureau of Economic Analysis estimates that at least one-third of the U.S. Gross Domestic Product is weather and climate sensitive. For more info, visit: http://www.economics.noaa.gov/?goal=home.

  • THE "TOTAL SWE MONDAY" HABIT The National Operational Hydrologic Remote Sensing Center (http://www.nohrsc.nws.gov/) utilizes reports of precipitation, snowfall, snow depth and the water equivalent of the snow on the ground every day. Data provide critical "Ground Truth" information that can improve the skill of their products and models. This will improve the accuracy of flood forecasts in the weeks and months ahead. We recently received the following message: "The analysts at NOHRSC prefer a Total Snow Water Equivalent (SWE) observation taken once a week on Monday. The simple reason is that digging cores every day ruins your sample snowfield area. Taking once-a-week observations will help preserve the day-to-day consistency of the readings. A flood of Monday morning SWE reports gives us a better picture of the overall snowpack instead of a few scattered results trickling in throughout the week. Daily total SWE would be great, but let's make "Total SWE Monday" a habit." (info from the CoCoRAHS website: http://cocorahs.org)

  • 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 - JANUARY 2010
    State
    Maximum Temperature
    Minimum
    Temperature
    Warmest
    Average
    Temperature
    Coldest
    Average
    Temperature
    Maximum
    Precipitation
    Minimum
    Precipitation
    Virginia
    68°
    Norfolk (ORF)
    Arlington
    -2°
    Bridgewater
    Lynchburg
    38.9°
    Norfolk (FHC)
    27.9 °
    Blacksburg
    4.79"
    Lynchburg
    1.56"
    Arlington
    North Carolina
    73°
    New Bern
    Fayetteville

    Roxboro
    42.8°
    Beaufort
    32.4°
    Asheville
    7.00"
    Asheville
    1.84"
    Lumberton
    South Carolina
    71
    Columbia, Florence
    Charleston
    13°
    Greenville-Spartanburg
    Anderson
    44.5°
    Charleston
    38.1°
    Greenville-Spartanburg
    6.46"
    Charleston
    2.44"
    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 35.8  20.0  27.9   -3.0  54 18,19  5   31   0 14 29 0 80% 40 320   2   7.2       0 0 1 1  4 2400 AKQ
         BRI 39.59 24.07 31.83  +0.83 57   25  -2   31   0 10 26 0 63%                                    0510/1600 LWX
         CEN 40.0  25.1  32.6   +1.1  65   25  13   03   0  9 26 0 59% 45 313  03   4.5  320 0 0 0 2  2 2400 LWX
         CHT 41.2  25.5  33.3   +0.8  66.1 25  12.0 31   0  8 25 0 69% 28 230  25   0.9  360 0 0 0 2  2 2400 LWX
         CHO 42.9  26.1  34.5         63   25   4   31   0  4 23 0     40 330   2   4.8       0 0 0 0  2 2400 LWX
         DAN 46.9  24.8  35.8   -0.8  66   19   7   31   0  3 24 0 61% 39 310   2   6.8       0 0 0 0  3 2400 RNK
         DCA 42.5  28.0  35.3   +0.4  68   25  16 3,16   0  6 23 0 56% 46 320   2  10.1       0 0 0 0  0 2400 LWX
                                                                       46 280   3
         IAD 41.5  25.3  33.4   +1.7  65   25  11   31   0  7 25 0 59% 49 140  25   9.5       0 0 0 2  2 2400 LWX
         FCH 40.2  28.3  34.3         65   25  13    3   0  5 18 0     55       25             1 0 0 3  3 2400 LWX
         GAV 45.29 25.55 35.42        65 15,19, 7   31   0  3 22 0 64% 41 180  25             0 0 0 0  0 2400 AKQ
                                           25 
         HDV 41.0  24.8  32.9   -1.5  66   25  13 3,31   0  7 26 0 62%                         1 0 0 1  0 2400 LWX
         LDY 42.2  26.1  33.9   -2.1  63   25   8   31   0  7 21 0 53%                         0 0 0 0  0 2400 AKQ
         LYH 42.5  23.1  32.8   -1.7  63   19  -2   31   0  4 26 1 61% 40 140  25   5.2       0 0 0 2  6 2400 RNK
         NEW 37.51 20.29 28.90  -4    55   28   0   31   0  9 28 1 76% 35 270  28  17.51 270 0 0 0 0  1 1700 LWX
         HAM 44    29    36           64   17  11                      46       25             1 0 0 0  1 2400 AKQ
         NPN 45.8  28.2  36.5   -4.0  66.3 24  15.0 11   0  1 21 0     37 290   2   4.3  290 1 0 1 1  0 2400 AKQ
         NOR 45.1  30.1  37.6   -2.2  67   17  18   31   0  4 20 0                             0 0 0 2  0 2400 AKQ
         ORF 45.3  30.4  37.8   -2.3  68   17  16   31   0  3 19 0     54 190  25   8.9       1 0 1 0  2 2400 AKQ
         FHC 44.63 33.17 38.9   -1.2  66.6 17  20.0 31   0  3 16 0 65% 39 140  25   3.3  320 0 0 0 0  0 2400 AKQ
         POR 44.9  29.9  37.4   -2.9  66.1 24  19.4 11   0  5 20 0 67% 35 160  25   6.3  350 0 0 1 0  0 2400 AKQ
         CTR 45.9  26.1  36.0   -2.7  64.3 25   8.8 31   0  2 22 0 63% 21 270  28   0.6  300 0 0 0 0  0 2400 AKQ
         MEC 44.12 26.48 35.3         59   26  10   31   0  3 19 0                             0 0 0 0  0 1700 AKQ
         RIC 45.1  26.9  36.0   -0.4  65   25  12   31   0  3 20 0     43 170  25   8.0       0 1 0 0  3 2400 AKQ
         ROA 41.0  26.0  33.5   -2.3  61   19  12   31   0  8 20 0 60% 44 330   2   8.9       0 0 1 1  1 2400 AKQ
                                                                       40 300  25       
         WAL 41.8  27.5  34.7   -1.3  61   25   9   31   0  7 20 0     49 180  25   9.6       0 0 0 0  2 2400 AKQ
         WOO 39.5  24.8  32.2   -3.1  59 18,26 10 3,31   0  6 21 0                             0 0 0 2  6 2400 LWX
         WSH 40.3  26.8  33.5   -0.39 60.6 25  14    3   0  7 20 0 65% 21 070  28   1.2  023 1 0 2 3  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 41.7  23.0  32.4  -3.4  61    20  9    11  0 10 25 0 68% 44 320  2    9.0      0 0 2 1  5 2400 GSP
                                                                      40 330 15                                     
         MRH 51.3  34.3  42.8        67 24,25 22    11  0  0 16 0     40 230  2   10.2      0 0 1 3  5 2400 MHX
         CLT 48.8  26.3  37.6  -4.1  70    20 15 13,31  0  1 22 0 62% 44 250 25    6.2      0 0 2 1  1 2400 GSP
         ECG 48.8  30.6  39.7  -2.7  70    17 19 10,11  0  0 20 0     43 170 25   10.1      0 0 0 0  1 2400 AKQ
         FAY 50.8  29.5  40.1        73    17 15    11  0  0 19 0 58% 44 160 24    8.1      2 0 0 1  5 2400 RAH
                                                                      44 150 25        
         GSO 46.2  25.8  36.0  -1.7  66    20 12  9,31  0  3 22 0 59% 41 160 24    8.2      0 0 1 1  3 2400        RAH
         HSE 46.3  32.8  39.6  -6.5  61 17,25 22     3  0  3 17 0 75% 59 210 17    9.3      0 0 0 1  1 2400 MHX
         HKY 46.3  25.9  36.1  -2.9  65    20 14   3,9  0  3 22 0     38 210 25    4.9      0 0 0 1  5 2400 GSP
         LBT 50.4  29.9  40.1  -2.0  71    17 16    11  0  0 19 0 66% 43 150 25    7.0      0 0 1 1  0 2400 ILM
         MON 49.4  26.0  37.7  -3.3  67.7  19 10.1  11  0  0 23 0     24 230 25        320                 RAH
         EWN 49.9  29.3  39.6  -4.7  73    17 13    11  0  0 20 0 66% 47 170 25    7.3      1 0 0 1  1 2400 MHX
         RDU 48.4  27.3  37.8  -1.9  68    17 15    11  0  3 23 0 60% 39 170 25    5.0      0 0 1 0  2 2400 RAH
         RAL 49.4  26.2  37.8  -0.1  67    20 13    11  0  1 25 0     29      25             0 0 1 1  0 2400 RAH
         ROX 45.8  26.7  36.5  +0.2  65    19  7    31  0  3 21 0 68% 39 140 24        360 0 0 0 1  1 2200 RAH
         ILM 51.6  31.0  41.3  -4.8  72    17 18    11  0  0 19 0 63% 46 160 25    8.2      1 0 0 1  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 49.4  27.7  38.6  -3.1  69    20 13     9  0  0 18 0     41 250 25   5.8       2 0 0 0  1 2400 GSP
         CAE 52.4  29.6  41.0  -3.6  71    20 15    11  0  0 19 0 63% 49 240 25   5.9       0 0 0 0  1 2400 CAE
         CRE 51.0  32.2  41.6  -5.2  68    20 19    11  0  0 18 0 65% 44 160 25   6.7       0 0 0 0  1 2400 ILM
         CHS 54.9  34.1  44.5  -3.4  71 17,24 18    10  0  0 16 0     52 190 25   7.9       0 0 0 0  0 2400 CHS
         FLO 51.5  29.6  40.6  -4.4  71    17 14  3,11  0  0 19 0 64% 38 200 25   6.6       0 0 0 1  1 2400 ILM
                                                                      38 290 26   7.1                      
         GSP 48.1  28.0  38.1  -2.7  70    20 13     9  0  1 20 0 62% 45 240 25   6.8       1 0 2 2  1 2400 GSP
         OGB 53.2  31.6  42.4        70 20,24 17  3,11  0  0 18 0     43 180 24   6.0       0 0 0 0  1 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 39.4  22.8  31.1  -3.1   58    24  3   18  0 13 23 0     45 250 25   4.8       0 0 1 0  2   2400 MRX
         DAV              19   -6     48    25 -5    4  0 20 29 4                                         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  3.91  +0.54 1.01 30 1.01    30 12 1  3.91 10.8 30  18 1 12.9 33.5                             2400
         BRI  3.47  +1.5  1.71 25 2.01 24-25  6 1  3.47           2 1  4.5 25.5  30.31  10 29.32  25        0510/1600
         CEN  2.39  -1.13 0.73 17 0.73    17  8 0  2.39  5.3 30   3 2  6.7 31.9  30.52  31 29.26  25 29.89  2400
         CHT  1.99  -1.06 0.61 17 0.61    17 10 0  1.99  4.5 30   4 2  5.0 28.0  30.45  29 29.226 25 30.05  2400
         CHO  3.89        1.67 25 2.09 24-25  8 1  3.89                                    29.23  25        2400
         DAN  3.54  +0.49 1.23 17 1.24 16-17  9 1  3.54  4.5 30   4 1  6.8 12.3  30.39  13 29.29  25        2400
         DCA  1.56  -1.65 0.68 17 0.68    17  8 0  1.56  6.4 30   9 2  7.4 24.0  30.46  29 29.23  25        2400
         IAD  2.01  -1.04 0.63 17 0.63    17  9 0  2.01  4.5 30   6 2  9.5 30.9  30.46  29 29.22  25        2400
         FHC  1.70        0.75 17 0.76 24-25  5 0  1.70  5.0 30   5 2  6.0 23.0  30.60    
         GAV  4.15        1.19 30 1.24 30-31 10 1  4.15 11.4 30   4 1 12.6 25.5  30.41  29 29.30  25 30.02  2400
         HDV  2.39  -0.74 1.70 17             8 0  2.39  5.9 30   3 2  7.6 38.4  30.43  29 29.18  25        2400
         LDY  2.62  -0.81 0.76 17 0.76    17  6 0  2.62 11.5 30   2 1 11.5 29.5  30.44  29 29.29  25 30.04  2400
         LYH  4.79  +1.25 2.12 25 2.55 24-25  8 1  4.79 11.2 30   4 1 11.4 23.9  30.30  29 29.98  30        2400
         NEW  2.55  +0.20 1.73 25                  2.55  7.0 30        8.0 31.0  30.66  10 29.70  25        1700
         HAM  2.47        0.90 17             7    2.47  8.0 30-  3    8.0       30.49     29.38            2400
                                                             31
         NPN  4.44  +0.81 1.35 25 1.35    25  8 2  4.44  6.0 30   3 1  6.4  7.9  30.42  29 29.36  25        2400
         NOR  4.06  -0.09 1.54 25 1.54    25  9 1  4.06  6.1 30   3 1  6.3  6.5                             2400
         ORF  3.81  -0.12 1.34 25 1.34    25  9 1  3.81  6.1 30   5 1  6.5  6.7  30.41  29 29.35  25        2400
         FHC  3.90  -0.03 1.30 30 1.35 30-31  9 2  3.90  6.0 30   4 1  6.4  6.5  30.370 29 29.360 25        2400
         POR  4.58  +0.87 1.41 25 1.41    25  9 3  4.58  5.7 30   4 1  6.2  6.5  30.39  29 29.37  25 30.020 2400
         CTR  3.96  +1.53 1.45 25 1.45    25  7 1  3.96 10.0 30   3 1 10.8 18.8  30.40  29 29.30  25 30.024 2400
         MEC  4.12        1.24 30 1.36 30-31  8 1  4.12 10.5 30   3 1 12.0 24.0  30.15  29 29.21  25 29.81  2400
         RIC  3.60  +0.05 1.23 15 1.23    15  8 1  3.60  9.5 30   6 1 10.4 17.8  30.44  29 29.33  25        2400
         ROA  4.61  +1.38 1.34 24 1.88 24-25  8 2  4.61  9.5 30   8 1  9.9 28.9  30.39  29 30.00  30        2400
         WAL  2.92  -0.29 1.09 17 1.09    17 10 1  2.92 10.0 30   4 2 13.5 13.8  30.41  29 29.32  25        2400
         WOO  3.12  +0.53         1.86 24-25  7 1  3.12  7.0 30   5 2  8.9 30.6  30.54 25, 29.92  26        0800
                                                                                        29                                
         WSH- 4.98  +1.32 2.88 25 3.65 24-25 10 1  4.98  4.5 30   9 1  6.2 28.7  30.46  29 29.29   7        2400
    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  7.00  +2.94 3.35 24 3.35    24  8 2  7.00  11.0  29 8 2 13.2 23.6  30.44  13 29.38  25         2400
         MRH  6.07        2.10 17 2.10    17  9 3  6.07   0.0   0 0 0  0.0  0.0  30.40  13 29.52  25         2400
         CLT  4.88  +0.88 1.69 24 2.00 24-25  9 2  4.88   1.6  30 3 2  2.7  2.7  30.44  13 29.38  25         2400
         ECG  2.91  -1.67 1.00 17 1.00    17  6 1  2.91   0.0     0 0  0.0    T  30.42  29 29.31  25         2400
         FAY  4.04        1.52 17 1.58 16-17  7 1  4.04                                    29.32  25         2400
         GSO  4.73  +1.19 1.28 17 2.21 24-25 11 3  4.73   4.2  30 6 2  6.4  9.4            29.32  25         2400
         HSE  6.55  +0.71 1.85 21 2.33 21-22  9 4  6.55   0.0   0 0 0  0.0  0.0  30.38  13 29.45  22         2400
         HKY  6.54  +2.31 2.72 24 3.02 24-25  7 2  6.54     T   7 1 0    T    T  30.44  13 29.38  25         2400
         LBT  1.84  -2.45 0.55 17 0.59 16-17  7 0  1.84                          30.44  13 29.43  25         2400
         MON  4.26  -0.23 1.61 17                         3.8          3.8                                   2400
         EWN  4.41  -0.36 1.21 25 1.21    25  7 3  4.41   0.0     0 0  0.0    T  30.38  13 29.45  22         2400
         RDU  3.89  -0.13 1.46 17 1.48 16-17  9 1  3.89   3.6  30 3 2  5.7  5.8            29.32  25         1900
         RAL  4.71  +0.69         1.03 24-25 10 1  4.71   4.2  30 2 1  5.0  6.0  30.39  10 29.47  25         2400
         ROX  4.38  +0.74 1.35 17 1.35    17  8 2  4.38   7.0  30   1  7.7 12.2  30.41  13 29.39  25   30.08 2200
         ILM  3.42  -1.10 1.29 17 1.30 16-17  8 1  3.42   0.0   0 0 0  0.0  0.0  30.42  13 29.47  25         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  5.27  +0.69 1.87 24  1.99 16-17  8 2  5.27    T  7 1 0     T    T  30.44  13 29.38  25         2400
         CAE  3.18  -1.48 0.92 17  1.73 16-17  7 0  3.18  0.0  0 0 0   0.0  0.0  30.46  12 29.40  25         2400
         CRE  2.44  -1.22 0.84 25  0.84    25  7 0  2.44                         30.44  13 29.48  25         2400
         CHS  6.46  +2.38 1.55 17  2.55 16-17  7 4  6.46  0.0  0 0 0   0.0  0.0            29.49  25         2400
         FLO  3.30  -0.79 0.92 17  1.20 16-17  6 0  3.30                         30.44  13 29.48  25         2400
         GSP  5.57  +1.16 2.49 24  2.54 24-25  8 1  5.57  0.7 30 3 0   0.8  0.8            29.41             2400
         OGB  5.53        2.41 17  3.09 16-17  6 2  5.53                         30.46  13 29.46  25         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  3.61  +0.09 1.00 24 1.01 24-25 13 1  3.61  4.8  30 14  3  10.2  19.1 30.53 10 29.36  25        2400
         DAV  6.31  +1.7  0.99 25            25 0  6.3   9.4   6 23 17  68.7 128.1                           0700    

    Virginia:

    Arlington - From NWS WBC come these notes: " IN WASHINGTON DC...ALTHOUGH THE MONTHLY AVERAGE TEMPERATURE FOR JANUARY ENDED UP BEING NEAR NORMAL...IT WAS A MONTH SPLIT BETWEEN COLD AND WARM PERIODS. IT WAS COLD DURING MOST OF THE FIRST HALF OF THE MONTH...11 OUT OF THE FIRST 14 DAYS WERE BELOW NORMAL. THEN TWO WEEKS OF ABOVE NORMAL TEMPERATURES OCCURRED FROM THE 13TH THROUGH 28TH...FOLLOWED BY SHARPLY COLDER CONDITIONS TO FINISH OUT THE MONTH. JANUARY WAS DRY...WITH LESS THAN HALF OF THE NORMAL PRECIPITATION. IT WAS THE DRIEST MONTH SINCE JULY 2009 AND THE DRIEST JANUARY SINCE 2004. HALF OF THE MONTHLY PRECIPITATION FELL ON THE 17TH. SNOWFALL WAS SLIGHTLY ABOVE NORMAL FOR THE MONTH DESPITE ONLY HAVING MEASURABLE SNOW ON TWO DAYS...THE 8TH AND 30TH. THIS YEAR MARKS THE FIRST JANUARY WITH ABOVE NORMAL SNOWFALL IN 10 YEARS. THE TWO-MONTH TOTAL OF 24 INCHES OF SNOW MEASURED AT WASHINGTON THIS PAST DEC-JAN PERIODS MARKS THE SIXTH SNOWIEST DEC-JAN PERIOD ON RECORD. AND SO FAR THIS WINTER...FOR THE COMBINED DEC-JAN PERIOD...THERE HAVE BEEN TWO SNOW EVENTS THAT EACH TOTALED AT LEAST 6 INCHES. THIS IS THE FIRST TIME IN WASHINGTON THAT HAS HAPPENED SINCE THE DEC-JAN PERIOD OF THE WINTER 1960-61. " [ + - ] 

    Bridgewater - " The big rain on the 25th caused water to appear in our basement. This is the time we have water in the basement since 1996. The zero reading on the 31th was the first zero reading since 2002. So far this winter season, we have had 25.5 inches of snow which is already above average for the season. My normal is around 22 inches. According to the forecasts, more snow is on the way. " - [ + + ] - Clayton sends these notes

    Chantilly - Russ reports: January started out with below average temps, but went through a welcome thaw from the 14th thru the 28th before returning to a much colder pattern. Temperatures averaged 0.8 above normal. It was fairly dry, with precipitation 1.06" below our average of 3.05" and snowfall of 5" coming up 3.1" shy of the norm. Snow was observed on the 7th (0.375"), 8th (1.125"), 22nd (trace) and 30th (4.5"). A trace of sleet was observed on the 21st. Dense fog was observed on the 2nd and 30th. " - [ + - ]

    Dulles - from NWS Sterling (KLWX) come these notes: " AT DULLES...ALTHOUGH THE MONTHLY AVERAGE TEMPERATURE FOR JANUARY ENDED UP BEING NEAR NORMAL...IT WAS A MONTH SPLIT BETWEEN COLD AND WARM PERIODS. IT WAS COLD DURING MOST OF THE FIRST TWO WEEKS OF THE MONTH...9 OUT OF THE FIRST 12 DAYS WERE BELOW NORMAL. THIS COLD PERIOD WAS FOLLOWED BY TWO WEEKS OF ABOVE NORMAL TEMPERATURES FROM THE 13TH THROUGH 28TH...FOLLOWED BY SHARPLY COLDER CONDITIONS TO FINISH OUT THE MONTH. PRECIPITATION THIS JANUARY WAS BELOW NORMAL...WHICH MAKES IT THE FIFTH JANUARY IN A ROW AND 10 OUT OF THE LAST 11 WITH BELOW NORMAL PRECIPITATION. SNOWFALL WAS BELOW NORMAL FOR THE MONTH. IT WAS THE 10TH CONSECUTIVE JANUARY WITH BELOW NORMAL SNOWFALL. DESPITE THE BELOW NORMAL SNOWFALL...THE TWO-MONTH TOTAL OF 27.1 INCHES OF SNOW MEASURED AT DULLES DURING THE PAST DEC-JAN PERIOD MARKS THE THIRD SNOWIEST DEC-JAN PERIOD ON RECORD...ONLY 1986-87 AND 1995-96 HAD HIGHER TWO MONTH DEC-JAN SNOW TOTALS. " - [ + - ]

    Glen Allen - Lowell Koontz sends these notes: " January was colder than average as the monthly mean temperature was 35.4F, a -1.3F departure, and was also much wetter than average (when compared to Ashland, Virginia records). Also there were 22 days the minimum temperature dropped below freezing and 3 days that the maximum didn't climb above freezing. The 4.15 inches of rain for January was a +0.79 inch departure when compared to the Ashland, VA average. The maximum precipitation recorded in a day was 1.19 inches on the 30th. The total snowfall was 12.6 inches for the month recorded mainly in the snowstorm on the 30th and 31st which was a large +6.8 inch departure compared to Ashland, Virginia records. The snow storm of the 30th and 31st was the biggest news of the month and between 1100 and noon of the 30th Glen Allen - Springfield Park area received 2.0 inches in one hour. See the time lapse video of the storm at http://www.glenallenweather.com/links/snows09-10/1-30-2010.avi and observations each hour during the storm at http://www.glenallenweather.com/11snowobs.htm The maximum temperature for January was 65F on the 15th, 19th, and 25th and the lowest minimum was 7F recorded here on the 31st which was the lowest temperature recorded here since January 17, 2009 when the minimum temperature was 4F. The maximum wind gust of 41 mph occurred on the 25th at 0336 hours and was the highest recorded since April 3, 2009 when a 41 mph gust was also recorded. Also the lowest barometric pressure of the month 29.30 inches was recorded and was the lowest pressure since April 3, 2009 when the pressure was 29.24 inches. The highest barometer recorded for the month was only 30.41 inches on January 29th. This January was a little warmer, much wetter and snowier, a little clearer and less windy (lower wind run) than January 2009. " - [ - + ] 

    Herndon - Randy adds these notes: " January was below normal for temperature and precipitation. The temperatures ranged between a high of 66 and a low of 13. The average high and low were about 2 and 1 degrees below normal, respectively. On the precipitation side, the month was about 0.74" below normal. We had two snow events occurring on the 8th when we received 1.5" and on the 30 when we received 5.9". The latter was an unusual system in that the largest snowfall amounts were south and east of Northern VA. We also had a rain-sleet event on the 21st where the precipitation started out as rain and then turned to sleet. We had about 0.2" of sleet during the event. We even had an unusual thunderstorm on 25th with a couple of rumbles as the storm passed. The totals for the month were 2.39" of precip with 7.6" (about 0.7" above Jan average) of snow. The total snowfall for the season is now 38.4" almost double the annual average. " - [ - - ]

    Ladysmith - Danny adds: " An otherwise boring weather month ended with a bang as a coastal storm brought 11.5" of snow. My location has seen more snow since December 18, 2009 than the previous four winters combined. 14 of the past 18 months have featured below normal temperatures. " - [ - - ]

    Portsmouth - " January was a much colder and wetter month relative to normal Januarys for the period from 1976 to 2009. The 4.58" of rain was 0.87" ABOVE normal rainfall (124% of normal). The month's average temp was 2.9 BELOW normal. A period of warmer than usual January temps occurred from mid-to-late month with colder than normal temps in the first half of and at the end of the month. A coastal low threatened to bring over a foot of snow to the locale; but the slightly milder onshore flow with the low changed the snow to sleet for a 6-hour period as the low approached on the 30th reducing totals to only 6" here (for the 30th-31st). This was the most snow cover at this station since January 2002. STATION RECORDS: JANUARY 2010 WAS THE 6TH SNOWIEST JANUARY IN THE DATABASE RECORD TO 7/1/76 The top January snowfalls include: 1) TIE 9.0" 1980,2002 3) 6.9" 1994 4) 6.7" 2000 5) 6.4" 1985 6) 6.2" 2010 1st - SNOW 0.2" [prev - none ] 2nd - TEMP Min Max 32 [previous 36 2001] 3rd - TEMP TIED Min Max 32 [prev 2008] 4th - TEMP Min Max 35 [prev 37 1977] 17th - RAIN 1.02" [prev 0.75" 1994] 17th - TEMP Max Min 45 [prev 44 1995] 25th - RAIN 1.41" [prev 0.86" 2000] 25th - TEMP Max Min 49 [ 48 1990] 26th - TEMP Max Min 38 [prev 1999] 30th - SNOW 5.7 [prev 1.8" 1994] 30th - TEMP Min Max 30 [prev 31 1981] " - [ - + ] 

    North Carolina:

    Fayetteville - " RECORD FOR DAILY PRECIPITATION JAN. 17TH. PREVIOUS RECORD 0.92 INCHES IN 1946. " - [ - + ]

    Greensboro - NWS RAH reports: " RECORD DAILY PRECIPITATION 1.28 INCHES ON JANUARY 17TH. PREVIOUS RECORD 0.89 INCHES IN 1937. RECORD SNOWFALL 4.20 INCHES ON JANUARY 30TH. PREVIOUS RECORD 3.70 INCHES IN 1930. " - [ - + ]

    Raleigh - Bob sends these notes: " Another cold and wet month!. The first two weeks of January were very cold, however the average daily temperature for the month was only slightly below normal. Snow and sleet occurred on January 29-30th with a maximum depth of 5" before the sleet reduced the snow depth. No severe weather was observed, however a tornado watch was issued on the 24th. " - [ - + ]

    Raleigh - NWS Raleigh (RAH) reports: RECORD LOW MAXIMUM TEMPERATURE OF 32 DEGREES TIED ON JANUARY 2ND. TIED 2002 RECORD. " - [ - - ]

    Nearby Cities:

    Davis, WV - from Dave Lesher's website: " January 2010 had a mean temperature that was 6 BELOW NORMAL and rainfall (liquid) ABOVE NORMAL (+1.7") Snowfall for the month was 68.7" which was a whopping 33" ABOVE normal. Rainfall for the month and year-to-date was 6.3", 1.7" ABOVE normal. The season-to-date snow total on 1/31/10 was 128" and that was 50" ABOVE normal. Snowfall for the season went from below normal to above normal during January. " - [ - + ]

    Tri-cities, TN - from NWS MRX in Morristown, TN: " The monthly-averaged temperature at Tri-Cities was 31.1 degrees, which was 3.1 degrees below normal. It ranked as the 12th coldest January on record. The coldest January at Tri-Cities was back in 1977, when the average temperature was 22.1 degrees. Tri-Cities received 3.61 inches of precipitation in January, which was 0.09 inches above normal. It ranked in the middle observations taken in January. Measurable precipitation occurred on 13 days, and five of those days had more than one-quarter of an inch of precipitation. The heaviest precipitation fell on the 24th when 1 inch of precipitation was reported, which broke the old daily precipitation record of 0.97 inches set in 2002. The wettest January of the 72 years of observations was back in 1957, when 9.18 inches of precipitation was recorded. " - [ - + ]



    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 ACON VA/NC/SC Recent Weather News, Search GOOGLE at CNN
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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:

      
       ROK   Roanoke, VA 6SW Wendell Prillaman  4/76 wlprillaman@cox.net
      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   
    BLK  Virginia Tech, Blacksburg, VA Andrew Earehart September 2009, | aeare07@vt.edu WOO  Woodstock, VA 5NW Lauck Walton - 12/1/85 jwalton@shentel.net
       LDY Ladysmith, VA Danny Jessee 2003 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 Airpot 35-12-48N 080-56-55W 220M
    IAD   Dulles - Washington-Dulles International Airport  38-56-05N 077-26-51W 93M  SSB    Sunset Beach, NC   33.9 N 78.5 W  Tom Myers
    FCH    Falls Church, VA Erica Page - 3/7/94 Windie1970@aol.com HKY  Hickory, NC 
    HAM    Hampton, VA 5NE Dave Kessel 1989 david82@verizon.net ECG  Elizabeth City, NC,  Coast Guard Air Station 36-15-47N 076-10-58W 11M
    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
    FRV     Front Royal, VA  Michael Perritt -  04/08 mjperritt@gmail.com RAL    Raleigh, NC 7NNW  Bob Woodson -  6/1/93 kf4mmm@qsl.net
    LKU     Louisa, VA 1N Joseph Bowers 1944 - NWS ID  44-5050-02jmbiii@earthlink.net RDU   Raleigh-Durham, NC Raleigh-Durham International Airport 35-52-14N 078-47-11W 130M
    LOU     Louisa, VA 6S John Bullock (about 1970) INACTIVE 1/1/02 - MEMBER DECEASED FALL 2004 ROX    Roxboro, NC 2SE Merriell A. Jay 1/93
    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 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