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

SUMMARY OF CLIMATOLOGICAL DATA 


MAY 2007


... WARMER INLAND AREAS... COOLER AT THE SHORES ...
... GENERALLY DRIER THAN USUAL ACROSS THE THREE STATE REGION ...

Except in Florence, South Carolina, every station noted below normal rainfall in May '07.

In Virginia, average temperatures were above normal for most all areas (except for CHO and DAN), Those stations in the coastal plain near the ocean and Chesapeake Bay were below normal, except for Wallops Island where one might speculate waters surrounding the station may have helped hold temps up a bit. A mixed bag of temperatures occurred over North Carolina while averages for South Carolina were below normal, except for Greenville-Spartanburg.

  • TOM MYERS - CONCORD, NC STATION RETURNS TO ACON VA/NC/SC    Tom Myers rejoins ACON this month with reports for Concord, NC [Charlotte metro area]. Please see his entry in the station notes below. You can also visit his website at http://www.carolinastormwatch.com. Please note that the site is JAVA intensive and requires some upload time; so be patient!
  • FORECAST ADVISOR    Here's a rather curious weather site Kevin Shaw has forwarded along for you to check. It notes "ForecastAdvisor will also show you the accuracy of the major weather forecasters, including Accuweather, Intellicast, MyForecast, The Weather Channel, and the National Weather Service. We also provide links to your city's weather forecast at all the other weather forecasters, so you can compare for yourself." Visit ForecastAdvisor at http://www.forecastadvisor.com/.


  • WORLDWIDE WEATHER EXTREMES    And another from Kevin with weather extremes for the world... http://www.extremescience.com/weatherport.htm.


  • DROUGHT MONITOR    http://www.drought.unl.edu/dm/monitor.html
  • 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 - MAY 2007
    State
    Maximum Temperature
    Minimum
    Temperature
    Warmest
    Average
    Temperature
    Coldest
    Average
    Temperature
    Maximum
    Precipitation
    Minimum
    Precipitation
    Virginia
    94°
    Washington (VA)
    31°
    New Market
    68.6°
    Falls Church
    62.2 °
    Blacksburg
    4.03"
    Mechanicsville
    0.34"
    Dulles
    North Carolina
    94°
    Fayetteville
    36°
    Asheville
    70.1°
    Fayetteville
    63.5°
    Asheville
    2.83"
    Elizabeth City
    0.54"
    Greensboro
    South Carolina
    93
    Columbia
    42°
    Anderson
    71.3°
    Charleston
    68.6°
    Anderson
    North Myrtle Beach
    3.68"
    Florence
    0.27"
    Orangeburg


    ( 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 R2   S   CWA
         ------------------------------------------------------------------------------------------------------------
         ANN 78.1  56.0  67.35  +2.7  91   26  40   8    2  0  0 0 63% 44 W     27             3 1 0 0  0     2400 LWX
         BCB 75.0  49.4  62.2   +3.3  86    1  32   7    0  0  1 0 69% 29 260  16   3.9       3 0 0 0  5     2400 RNK
         BRI 76.7  54.9  65.8         87   27  35   7    0  0  0 0 53%                         2 0 0 0  0     0510 LWX
         CEN 75.5  55.6  66.5   +4.5  90   26  40        1  0  0 0     31 331  20   2.0  N    1 0 0 0  0     2400 LWX
         CHT 75.7  53.4  64.9   +2.6  89.5 26  36.7 8    0  0  0 0 65% 22 N     19   1.0  S    3 0 0 0  0     2400 LWX
         CHO 76.1  52.3  64.2   -1.0  87 28,31 33   7    0  0  0 0     30 360   6   3.3       1 0 0 0  2     2400 LWX
         DAN 78.7  53.0  65.9   -0.2  90    1  37   7    1  0  0 0 67% 36 050   6   6.1       4 0 0 0  2     2400 RNK
         DCA 77.6  58.0  67.8   +2.2  91   26  44   8    1  0  0 0 60% 44 200   1   8.6       3 0 0 0  1     2400 LWX
         IAD 78.5  53.6  66.1   +3.8  92   26  36   8    2  0  0 0 59% 39 240  27   6.4       3 0 0 0  0     2400 LWX
         FCH 78.6  58.5  68.6         92   27  39   7    4  0  0 0     25       20             3 0 0 0  4     2400 LWX
         HAM 76.1  55.7  65.9   -1.1  91 2,28  44  14    4  0  0 0 67% 40 NNE    7  12.0       2 0 0 0  4     2400 AKQ
         HDV 77.4  55.3  66.4   +2.4  90   26  40 7-8    1  0  0 0                             2 0 0 0        2400 LWX
         HER                                                                                   3 0 0 0        2400 LWX
         LDY 78.1  55.1  66.6   +0.6  90   27  37   8    2  0  0 0 56%                         5 0 0 0  0     2400 AKQ
         LYH 76.5  52.9  64.7   +1.3  89    1  37   7    0  0  0 0 67% 33 030   6   5.7       6 0 0 0  0     2400 RNK
                                                                       33 360  26      
         NEW 76.44 50.45 63.44  +1.0  89    1  31   7    0  0  1 0 65% 40 S     27  17.0       2 0 0 0  1     1700 LWX
         NPN 76.0  55.9  66.0         91    2  42  14    4  0  0 0     35 E      6             4 0 0 0  1     2400 AKQ
         NOR 75.3  55.3  65.3   -2.4  90    2  41  14    1  0  0 0                             0 0 0 0  0     2400 AKQ
         ORF 74.4  56.7  65.6   -0.7  91   27  43  14    4  0  0 0 68% 52 040   6   9.5       0 0 0 0  2     2400 AKQ
         FHC 75.89 57.91 66.9   +0.6  90.3 28 45.7 14    3  0  0 0 71% 38 023   6   4.0  022                2400 AKQ
         POR 75.2  56.1  65.6   -1.8  88   28  44  14    0  0  0 0 73% 39 NNW   6   3.8  018 2 0 0 0  1 34% 2400 AKQ
         CTR 78.2  54.3  65.7   +0.3  91.6  2 54.1  7    2  0  0 0 75% 16 NE   6,7   0.2  E    1 0 0 0  0 50% 2400 AKQ
         MEC 80.03 55.71 67.87        93  2,3  41 7,8    2  0  0 0     10 N      3             6 1 0 0  0     1700 AKQ
         RIC 78.4  56.5  67.4   +2.0  92    2  42   7    1  0  0 0 64% 41 420  26   6.9       6 1 0 0  1     2400 AKQ
         ROA 79.0  56.1  67.6   +3.5  92    1  37   7    1  0  0 0 59% 40 260  26   5.8       6 0 0 0  0     2400 AKQ
         AKQ 79    53    66           91 2,28  39   7    4  0  0 0                                            2400 AKQ
         WAL 71.9  53.4  62.6   +0.3  86   28  41 7,14   0  0  0 0     53 040   6   9.4       0 0 0 0  5     2400 AKQ
         WOO 74.3  56.3  65.3   +3.1  86   27  42   7    0  0  0 0                             0 0 0 0  0     2400 LWX
         WSH 78.4  53.2  65.8   +2.59 94.0 26  38.3 7    2  0  0 0 66% 18 E      6   1.1  SSW  2 0 0 0  0     2400 LWX
                                                                       18 ENE   20
    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 R2  S    CWA
         -----------------------------------------------------------------------------------------------------------
         AVL 77.1  49.9  63.5  +1.5  86     1 36   7,8  0  0  0 0 62% 36 320 18    5.1      2 0 0 0  5     2400 GSP
         MRH 75.6  60.0  67.8        85    29 49     7  0  0  0 0     36 020  8    8.2      2 0 0 0  1     2400 MHX
                                                                      36 020 13
         CLT 80.3  54.9  67.6  -1.4  92    30 40     7  2  0  0 0 60% 31 050  6    6.2      2 0 0 0  2     2400 GSP
         CON 82.0  53.9  68.0  -0.5  93.2  30 38.8   7  5  0  0 0 63% 24 NE    6    1.9  NE  1 0 0 0  0     2400 GSP
         ECG 75.6  55.9  65.8  -2.1  87    28 41    14  0  0  0 0 69% 53 020  6    9.9      0 0 0 0  3     2400 AKQ
         FAY 82.7  57.5  70.1        94     1 46     7  6  0  0 0 61% 36 040  6    9.8      4 0 0 0  2     2400 RAH
                                                                      36 020  7    8.2      2 0 0 0  6
         GSO 79.3  56.2  67.7  +1.9  91  1,29 42     7  2  0  0 0 60% 35 050  6    7.6      4 0 0 0  1     2400 RAH
         HSE 74.5  60.8  67.7  +0.1  85    29 50   6,7  0  0  0 0     51 040  6    9.1      0 0 0 0  0     2400 MHX
                                                                      51 020  7                       
         HKY 80.2  54.6  67.1  +1.1  91     1 39     7  4  0  0 0     26 020 18    5.1      2 0 0 0  2     2400 GSP
         LBT 81.5  56.4  68.9  +0.5  92    30 45     7  2  0  0 0     38 040  7    6.1      3 0 0 0  4     2400 ILM
         EWN 78.4  56.6  67.5  -1.4  93     1 47     2  0  0  0 0     43 360  6    7.1      1 0 0 0  5     2400 MHX
         RAL 80.0  54.0  67.0   0.0  93    29 39     7  7  0  0 0     21      7,16           2 0 0 0  0     2400 RAH
         RDU 80.3  56.0  68.2  +1.2  92  1,29 42     7  8  0  0 0 63% 32 040  6    7.1      2 0 0 0  3     2400 RAH
         ROX 78.8  55.0  67.0  +1.5  91    01 37     7  3  0  0 0 70% 30 NE    6         VAR 2 0 0 0  2 39% 2400 RAH
         ILM 79.6  57.6  68.6  -1.6  90     1 45     7  1  0  0 0 66% 45 010  7    7.8      3 0 0 0  4 12% 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 R2  S    CWA
         -----------------------------------------------------------------------------------------------------------
         AND 81.3  56.0  68.6  -0.2  90     1 42    19  1  0  0 0     29 070  6   5.4       4 0 0 0  1     2400 GSP
         CAE 83.9  57.6  70.8  -0.8  93    30 47  7,20  7  0  0 0 59% 29 020  7   6.4       2 0 0 0  1     2400 CAE
                                                                      29 030  8
                                                                      29 030  9
         CRE 78.5  58.7  68.6  -1.3  89    30 46     7  0  0  0 0     38 040  6   8.7       0 0 0 0  3     2400 ILM
                                                                      38 030  7
         CHS 82.7  60.0  71.3  -0.8  91     3 49     7  2  0  0 0     35 360  7   8.8       3 0 0 0  3     2400 CHS
                                                                      35 010  8
                                                                      35 010  9
         FLO 81.7  57.6  69.7  -1.3  91  2,30 47     7  3  0  0 0     52 060  3   6.6       2 1 0 0  6     2400 ILM
         GSP 81.0  56.3  68.7  +1.5  92    31 44     7  3  0  0 0 56% 51 010  3   6.4       4 0 0 0  3     2400 GSP
         OGB 83.2  56.8  70.0        91  2,30 45    20  5  0  0 0     33 010  7   6.1       2 0 0 0  5     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 R2  S    CWA
         -----------------------------------------------------------------------------------------------------------
         TRI 80.8  51.2  66.0  -3.0  89    30  37    7  0  0  0 0     38 280 16   2.8       4 0 0 0  2     2400 MRX
         DAV 67.7  46.8  57.3        78  2,10  33  6,7  0  0  0 0                                           0700 PBZ
                                                 19,20

    (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
         -------------------------------------------------------------------------------------------------------
         ANN  1.38  -2.86 0.81 27 0.81    27  8 0 14.64  0.0           0.0 15.3  30.50  24 29.72  16 30.13  2400
                                                                                        22
         BCB  2.93  -1.46 1.11  3 1.13     3 13 1 17.88  0.0           0.0  6.7                             2400
         BRI  1.54  -2.54 0.49 31 0.49    31  6 0 11.48  0.0           0.0 13.0  30.36   7 29.85   2        2400
                                                                                        22
         CEN  0.91  -3.57 0.39 27 0.39    27  6 0 12.57  0.0           0.0 18.0  30.50  24 29.75  16 30.13  2400
         CHT  0.62  -3.60 0.28 12 0.28    12  4 0 11.93  0.0           0.0 14.9  30.482  7 29.725 16 30.13  2400
         CHO  2.53  -2.33 0.44 18 0.74 17-18  9 0 10.13  0.0           0.0  3.3            29.70  16        2400
         DAN  1.38  -2.58 0.55 16 0.55 16-17  5 0 14.85  0.0           0.0  0.8  30.48  24 29.79  16        2400
         DCA  1.75  -2.07 0.93 12 0.93    12  4 0 13.79  0.0           0.0  9.5            29.70  16        2400
         IAD  0.34  -3.88 0.12 12 0.12    12  7 0 11.30  0.0           0.0 14.7            29.70  16        2400
         FCH  0.73        0.43 12 0.60 11-12  5 0 12.11  0.0           0.0 11.0                             2400
         HAM  2.51  -1.19 0.81 17 0.83 17-18 11 0 11.02  0.0           0.0       30.51  25 29.80  17 30.10  2400
         HDV  1.25  -3.09 0.73 16             6 0 13.23  0.0           0.0 14.8                             2400
         HER  0.41  -3.81 0.11 27 0.11    27  7 0 12.34  0.0           0.0 15.25                            2400
         LDY  3.29  -0.69 1.60  2 1.65   2-3  6 1 13.69  0.0           0.0  3.8  30.53  24 29.74  16 30.15  2400
         LYH  3.37  -0.74 1.04 17 1.09 17-18 11 1 15.75  0.0           0.0  3.2  30.49  24 29.78  16        2400
         NEW  1.85  -1.50 0.83 18                 12.25  0.0           0.0       30.68  24 30.10 1,2        1700
         NPN  2.86        0.72 17 0.89   5-6 12 0 13.91  0.0           0.0  1.8  30.44  24 28.72  16        2400
         NOR  1.96  -2.00 0.67 17 0.67    17  8 0 12.96  0.0           0.0  0.1                             2400
         ORF  2.06  -1.68 0.73  5 0.86   5-6 10 0 11.09  0.0           0.0  0.1  30.50  24 29.79  16        2400
         FHC  2.19  -1.55 0.80 17 0.83 17-18 11 0 11.57  0.0           0.0    T  30.486 24 28.802 16 30.120 2400
         POR  2.06  -1.99 0.81 17 0.81 16-17  9 0 12.04  0.0           0.0  0.4  30.48  24 29.80  16 30.118 2400
         CTR  3.48  -0.37 0.92  2 1.20   2-3 11 0 16.82  0.0           0.0  2.1  30.50  24 29.77  16 30.126 2400
         MEC  4.03        2.35 29 2.35    29  7 1 16.33  0.0           0.0  1.8  30.21  23 29.62   2        1700
         RIC  3.69  -0.27 0.92 13 0.93    13  9 0 15.49  0.0           0.0  1.3  30.51  24 29.77  16        2400
         ROA  2.59  -1.65 1.34 26 1.34    26  6 1 13.15  0.0           0.0  3.1  30.49  24 29.82  16        2400
         AKQ  3.28        0.69 18            13 0 15.29  0.0           0.0  0.5                             2400
         WAL  1.35  -1.85 0.54  5 0.59 16-17  7 0 11.77  0.0           0.0  5.1  30.51  24 28.76   2        2400
         WOO  1.18  -2.82         0.44 18-19  6 0 12.57  0.0           0.0 29.7  30.57   7 30.03  16        0800
                                                                                        22
         WSH  1.72  -2.20 0.57 27 1.21 15-16  7 1 13.90  0.0           0.0 19.4  30.28  21 29.29  16        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  0.96  -3.46 0.48  3 0.50   3-4  5 0 11.82   0.0          0.0  3.2  30.45  24 29.87  11         2400
         MRH  1.68        0.81  6 0.81     6  6 0 10.20   0.0          0.0  0.0  30.45  24 29.88  13         2400
         CLT  0.60  -3.06 0.26 12 0.26 11-12  4 0 10.87   0.0          0.0  1.0            29.84  11         2400
         CON  0.63  -3.37 0.23 12 0.23 11-12  5 0 12.98   0.0          0.0  3.2  30.43  24 29.81  11  30.08  2400
         ECG  2.83  -1.60 0.66  9 0.80   8-9  8 0 10.58   0.0          0.0  1.0  30.49  24 29.84  16         2400
                          0.66 12
         FAY  0.86        0.38 17 0.59 16-17  8 0 11.36                                    29.82  16         2400
         GSO  0.54  -3.41 0.16  9 0.17   8-9  7 0 14.01   0.0          0.0  0.8            29.82  16         2400
         HSE  2.52  -1.40 0.80  9 0.90   8-9  7 0 15.16   0.0          0.0  0.0  30.47  24 29.86  13         2400
         HKY  0.82  -3.64 0.31 16 0.31    16  5 0 11.48   0.0          0.0    T  30.44  24 29.82  16         2400
         LBT  1.38  -2.59 1.03 12 1.03    12  5 1  8.38                          30.45  24 29.85  12         2400
         EWN  2.61        1.09 17 1.12 17-18  7 1 15.63   0.0          0.0  0.0  30.47  24 29.86  13         2400
         RDU  1.43  -2.36 0.96 12 0.96    12  7 0 13.69   0.0          0.0  1.6            29.82  16         2400
         RAL  1.41  -2.38         1.25 11-12  7 1 14.12   0.0          0.0  1.4  30.43  24 29.80  16         1900
         ROX  1.33  -2.48 0.59  9 0.59     9  7 0 13.63   0.0          0.0  0.5  30.55  24 29.88  16  30.19  2200
         ILM  1.63  -2.77 0.52 5, 0.63   5-6  6 0 10.97   0.0          0.0  0.0  30.44  24 29.88  12         2400
                               17
    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  2.57  -1.33 2.57  5  2.57     5  1 1 15.10  0.0          0.0    T  30.44  24 29.85  11         2400        2400
         CAE  0.40  -2.77 0.22 12  0.22 11-12  3 0 10.92  0.0          0.0  0.2  30.43  24 29.85  11         2400
         CRE  0.90  -2.09 0.63 17  0.80 17-18  7 0  9.60                         30.42  24 29.88   9         2400
         CHS  0.93  -2.74 0.44  6  0.44     6  6 0  8.90  0.0          0.0    T  30.39  24 29.80   9         2400
         FLO  3.68  +0.37 1.81 12  1.82 12-13  7 2 12.29                         30.43  24 29.83  12         2400
         GSP  1.56  -3.03 0.92  5  0.92     5  5 0 14.17  0.0     0 0  0.0  1.5            29.84  11         2400
         OGB  0.27        0.11 12  0.12 12-13  6 0 13.96                         30.42  24 29.84  12         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  0.76  -3.56 0.18 16 0.27   5-6  6 0  8.29   0.0            0.0   2.8 30.42 24 29.86  11        2400
         DAV  3.09        1.11 19            10 1 30.02     T 18,19  2 0   T 193.6                           0700    

    Virginia:

    Annandale - Lowell sends these additional notes: " May was the second driest May in the last 27 years with above average in temperatures. The mean temperature (67.4F) was + 2.7F above the average making it tied with 2000 for the fifth warmest May in the past 27 years. The record maximum temperature was 91F on the 26th and the lowest temperature recorded in May was 40F on the 8th. The minimum dew point temperature for May was 22F on the 6th which set a new minimum record for the month (Records since 2003). The 37F daily temperature range on the May 8th was the highest in May since 1998 when another 37F range was recorded. The May record is 42F set in 1992. The May rainfall of 1.38 inches was the second driest in the past 27 years. May had a -2.86 inch departure and the driest since 1986 when 1.05 inches occurred which was the driest May in the last 27 years. The intense rain of a strong thunderstorm on the 27th gave 0.38 inches of rain in five minutes which was the most intense rainfall in May since 1995 when 0.38 inches which is the record in a five minute period. This thunderstorm also had about a half a minute in which a discernible amount of very soft hail became slush on impact. May had few cloudy days and was the clearest May since 1997. The highest barometric pressure was recorded on the 24th at 30.50 inches which was the highest recorded in May since 2003. May 2003 had the highest pressure of 30.53 inches recorded in the past 27 years. The maximum gust of 44 mph on the 27th that occurred in a strong thunderstorm was the highest in May since 2002 with the 27-year record for May being 45 mph set in 1993. SPRING SEASON SUMMARY: The mean spring temperature was 56.0F with a + 1.0 F departure with eight springs that were warmer in the last 27 years. The maximum was 58.56F in 1991 and the minimum was 51.63 F in 1996. The total precipitation was only 9.45 inches with a - 2.74 inch departure and was the eighth driest in the last 27 years. The maximum was 19.19 inches in 1983 and the minimum was 4.51 inches in 1986. May DAILY Records Tied or Broken- (27-Years of records): 1 HIGH minimum temperature: May 10; 1 HIGH range temperature: May 8; 1 HIGH precipitation: May 27. " [ + - ] 

    Arlington from NWS in Sterling - " MAY WENT DOWN AS A WARM AND DRY MONTH AT REAGAN NATIONAL AIRPORT. THE AVERAGE TEMPERATURE THIS MONTH WAS 67.8 DEGREES WHICH IS 2.2 DEGREES ABOVE NORMAL. THIS MAKES IT THE 25TH WARMEST MAY ON RECORD DATING BACK TO 1871. ONLY 1.75 INCHES OF RAIN FELL THIS MONTH...MAKING IT THE 22ND DRIEST ON RECORD. IN FACT...THERE WERE ONLY FOUR DAYS OF MEASURABLE RAINFALL FOR THE ENTIRE MONTH. THE ONLY OTHER YEARS WITH LESS DAYS OF MEASURABLE RAINFALL CAME IN 1939 AND 1964. ONLY THREE DAYS OF MEASURABLE RAINFALL WERE RECORDED FOR BOTH OF THOSE YEARS. [ + - ] 

    Bridgewater - " The temperature was 3.8 degrees above normal while the precipitation was 2.54 inches below normal. The month was quite dry until a thunder shower at the end of the month changed things. The .49 inches of precipitation was quite welcome.. The total precipitation for the year is now 11.48 inches. There were only 2 thunderstorms during the month. " - [ + - ] - report from Clayton

    Centreville - " It may or may not have set some records, but our May in these parts was the driest in recent memory. With less than an inch in the bucket for the entire month, we managed to register an annual deficit of 5.59" of the 18.16" normal; that is 70% of where we ought to be. Our temperatures for May were all above average with the overall monthly average entered in the log books at 4.5 warmer than usual. The high of 90 set on the 26th was far from a record setter; 95 in 1996 captured that title. Our average high of 77.5 was 3.2 warmer than the 74.3 average we typically expect. For lows, 40.0 was noted on the mornings of May 7th and 8th. This was some strong competition for a five-way tie for a record low maximum only exceeded by 41 back in 1988. The pair of 40 readings though did little to sway the average low further down the scale. We still recorded 5.8 higher than the usual 49.8 low average for a spring like month of May. As I let on earlier, the lack of precipitation was the banner weather headline for May. With so little precipitation to account for, it was difficult to gauge the effectiveness of my recalibration of one of the tipping bucked gauges. On May 27th we squeezed out 0.39" of precipitation which managed to be our greatest daily amount for May. Five other days also contributed to our monthly total yielding another 0.52". This amounts to being 3.57" short, or 20% of our 4.48" normal rainfall amount for the month. In the world of statistics, May is typically our wettest month. For 2007 I'm sure it will turn out to be our non-wettest month. For the time being, the best we can do is hope for a late season snowfall. " - [ + - ] - report from Paul

    Chantilly - Russ Topping sends these notes: " This was my driest May on record. Precipitation was 3.6" below normal. A few thunderstorms provided the only relief. Temperatures averaged 2.6 degrees above normal. The lawn looks more like it should in mid-August than in May! *Please note, anemometer is currently partially obstructed " - [ + - ]

    Falls Church - Windie adds these comments: " A very dry month. No days with a half inch or greater rainfall total. The cool spell early in the month brought my low of 39 on May 7. My 1st 90 degree day for the year occurred on May 26. " - [ + - ]

    Hampton - Dave sends these additional notes: " May as usual around Hampton Roads, had several "backdoor" fronts move south and stall near the area- producing periods of warm and then cool marine influence. Latter part of the month was warm and dry. Records for May: Max 91.0 on the 2nd and a Min 44.0 on the 14th " - [ - - ]

    Herndon - Randy sends these notes: " MAY WAS A FAIRLY WARM AND VERY DRY MONTH. THE FIRST AND THIRD PARTS OF THE MONTH WERE THE WARMEST AND DRIEST, WITH THE MIDDLE THIRD BEING THE COOLEST AND WETTEST. DURING THE MIDDLE THIRD OF THE MONTH WE EXPERIENCED TWO DAYS WITH WIDELY SCATTERED THUNDERSTORMS WITH PRECIPITATION AMOUNTS VARYING WIDELY THROUGHOUT THE AREA. I MEASURED ABOUT A QUARTER INCH ON THE 12TH AND ABOUT THREE QUARTERS OF AN INCH ON THE 16TH. THESE TWO STORMS ACCOUNTED FOR 4/5S OF MY TOTAL PRECIPITATION AMOUNT FOR THE ENTIRE MONTH (1.25 INCHES). THIS WAS THE DRYEST MAY SINCE I BEGAN RECORDING IN THE EARLY 90S. FOR THE YEAR, MY SITE IS NOW 4.5 INCHES BELOW NORMAL. THE HIGHEST TEMPERATURE RECORDED DURING THE MONTH WAS A 90 ON THE 26TH DURING A STRETCH OF VERY WARM DAYS ENDING THE MONTH. THE AVERAGE HIGH TEMPERATURE WAS 77.4 WHICH WAS 3 DEGREES ABOVE NORMAL AND THE AVERAGE LOW TEMPERATURE WAS 55.3 WHICH WAS 2 DEGREES ABOVE NORMAL. LET'S HOPE THAT JUNE BRINGS MORE RAIN AS THE GRASS AND FLOWERS ARE ALL GETTING VERY DRY AND THE WATER BILL IS GOING TO BE GOING UP. " - [ + - ]

    Ladysmith - Danny sends these additional notes: " Summer came early this year with a pleasant stretch of unseasonably warm weather at the end of the month. All 3.29" of rain for the month fell between the 2nd and 16th. There has been no measurable rain in over two weeks and counting. " - [ + - ]

    Portsmouth - " FROPA (FRONTAL PASSAGES) RECORDED ON THE 2nd, 6th, 13th, 17th, 21st, 29th. STATION RECORDS: 2nd - TEMPERATURE - MAXIMUM TIED 87 [previous 1987] 14th - TEMPERATURE - MINIMUM 44 [previous 47 1996]. A dry and cooler than usual May. In fact, this was the FIFTH DRIEST MAY IN THE DATABASE TO 1976. The driest May occurred in 1986 (1.02"). The station had only 51% of its normal May rainfall. This was also the SEVENTH COOLEST MAY IN THE DATABASE TO 1976. The coolest May average temp was 63.1 in 1992. At the end of May, only 12.04" of rain had fallen for the year-to-date and that is 6.38" BELOW normal (65%), " [ - - ] 

    North Carolina:

    Concord - Upon his return to ACON VA/NC/SC, TOM sends these notes: " I have a Davis Wireless Vantage Pro located on my back deck with my anemometer mounted approximately 15" above my roof line. I have taken correspondence courses in Met from Penn State in the 1980's and will be entering Mississippi State's Broadcast Meteorology Program (Correspondence Classes) in the Fall which is a 52 Credit Hour Program. The Program has the same courses as the Operational Met Program but the Operational Program is for Military Personnel Only (don't ask me why because they have the same classes and at my age I don't think I will be Broadcasting the Weather but at least I will have the classes). I live in Concord, NC (near Harrisburg; Concord has basically annexed most of Cabarrus County) about 7 miles from Lowe's Motor Speedway and live about 18 miles from Downtown Charlotte. My Location is: Lat 35.34525 North and Longitude is -80.56313. I work for Richard Petty Driving Experience that allows the average individual to either ride or drive a NASCAR type car in several different programs at over 25 different track locations around the US. I also have a web site at: http://www.carolinastormwatch.com that covers the local weather over the Charlotte Metro region.

    MAY WAS AN UNUSALLY DRY MONTH WITH ONLY 0.63" OF RAIN RECORDED PLUNGING THE CHARLOTTE METRO REGION FURTHER INTO DROUGHT CONDITIONS WHICH ARE NOW CONSIDERED MODERATE. NO RAIN WAS RECORDED AT ALL FROM MAY 12TH UNTIL MAY 30TH. TEMPERATURES ALSO TOOK SOME WILD SWINGS FROM A LOW OF 38.8 DEGREES ON 5/7 TO A HOT HUMID HIGH OF 93.2 ON 5/30. RAIN FOR THE YEAR IS NOW -6.73" BELOW NORMAL AT CON WITH SOME ISOLATED LOCATIONS RECEIVING MUCH MORE RAIN THAT GOT LUCKY AND GOT HIT BY A HEAVY T-STORM WHICH AGAIN HAVE BEEN HARD TO COME BY. " - [ - - ]

    Greensboro - NWS Raleigh (RAH) reports: " ...CLIMATE RECORDS FOR THE MONTH OF MAY... 0.54 INCHES OF PRECIPITATION FELL THIS MONTH ... THIS MAKES MAY 2007 THE 3RD DRIEST MAY ON RECORD. THE DRIEST MAY ON RECORD IS 0.37 INCHES IN 1936. THE 2ND DRIEST MAY ON RECORD IS 0.42 INCHES IN 1954. The May 2007 North Carolina Weather Review is located here: http://www.erh.noaa.gov/rah/ncsummaries/MonthlySummary.May.2007.doc [when available]. " - [ M M ]

    Raleigh - Bob adds these notes: " The lack of rainfall was the weather headline for May. Only 1.41" of rainfall was recorded, of which 1.25" fell on one day (May 12th). After the 12th, only 0.01" was measured. The average daily temperature was 67 degrees, which is normal for the month of May. There were two thunderstorms observed during the month. " - [ -/+ - ]

    Raleigh - NWS Raleigh (RAH) reports: " ...CLIMATE RECORDS FOR THE MONTH OF MAY... 12TH... LOW OF 66 BROKE OLD RECORD HIGH MINIMUM OF 65 DEGREES LAST SET IN 1964. 29TH... HIGH OF 92 TIED THE OLD RECORD HIGH LAST SET IN 1991.

    The May 2007 North Carolina Weather Review is located here: http://www.erh.noaa.gov/rah/ncsummaries/MonthlySummary.May.2007.doc [when available]. " - [ M M ]

    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 2006-2007 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
    R2 sky cover percentage 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 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
    ANN    Annandale, VA 1 3/4 ENE - Lowell Koontz  8/31/79  wwkoontz@verizon.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   
    BRI     Bridgewater, VA Clayton Towers Ctowers@rica.net WOO  Woodstock, VA 5NW Lauck Walton - 12/1/85 jwalton@shentel.net
    CEN  Centreville, VA Paul Bassett 1985, 38 50.9788' N LAT. 77 25.6374' W LON. | Elevation 324' | m.psb@verizon.net LDY Ladysmith, VA Danny Jessee 2003 danny@dannyjessee.com
       WAL   Wallops Island, VA 37 56'26" N 75 27'47" W Wallops Flight Facility Airport
    CHO   Charlottesville, VA  Charlottesville-Albemarle Airport ASOS  (Rappahannock County) 38-08-18N 078-27-21W 192M AVL    Asheville, NC  Asheville Regional Airport 35-25-55N 082-32-15W 670M
      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  CON  Concord, NC, Tom Myers, Lat 35.34525 North and Longitude is -80.56313; 18 miles from Downtown Charlotte.
    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
    HER    Herndon, VA R.M. Beall P- 10/76   T-  1/91 beall47@earthlink.net 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
       EWN    New Bern, NC  Craven County Regional Airport 36-04-03N 077-02-50W 3M
    LXI     Lexington, VA  Scott M. Lancey, -  06/96 weather@midatlanticwx.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