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
    7°
    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 35.4°F, a -1.3°F 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 65°F on the 15th, 19th, and 25th and the lowest minimum was 7°F recorded here on the 31st which was the lowest temperature recorded here since January 17, 2009 when the minimum temperature was 4°F. 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