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

SUMMARY OF CLIMATOLOGICAL DATA 


SEPTEMBER 2011


...CONTINUED ABOVE NORMAL TEMPERATURES...
... FOR VIRGINIA, MOST STATIONS REPORT ABOVE NORMAL RAINFALL;
FOR THE CAROLINAS, MIXED DEPARTURES FOR RAINFALL ...

  • from NOAA NEWS - SEPTEMBER 2011    http://www.noaanews.noaa.gov/stories2011/20111013_globalstats.html Global temperatures in September were eighth warmest on record! Annual minimum Arctic sea ice extent second smallest ever Details with a click to the link above. recorded!


  •   CoCoRaHS On You Tube    from the CoCoRaHS website -"CoCoRaHS has launched the CoCoRaHS YouTube Channel (http://www.youtube.com/cocorahs). This is the location where you will find official CoCoRaHS videos. Additional videos will be added on a fairly regular basis. For those of you not familiar with YouTube, the site is free and easy to access with your computer. With this announcement, we have released a "new animated introduction video" describing the network in an animated, easy to watch style. Our goal is to have something that appeals to all ages, is attention grabbing, funny and still educational. We hope you like it. Let us know what you think. If this video becomes popular we will work with our artist to create additional training materials and other items of interest. We hope that you'll take a moment to watch this new intro video and share it with others. Thanks as always for your daily reports and keeping an eye on the sky!"


  • 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 - SEPTEMBER 2011
    State
    Maximum Temperature
    Minimum
    Temperature
    Warmest
    Average
    Temperature
    Coldest
    Average
    Temperature
    Maximum
    Precipitation
    Minimum
    Precipitation
    Virginia
    93°
    Norfolk (ORF)
    Roanoke
    39°
    Bridgewater
    74.9°
    Norfolk (ORF)
    64.2°
    Blacksburg
    13.31"
    Mechanicsville
    3.27"
    Wallops Island
    North Carolina
    96°
    Charlotte
    49°
    Asheville
    77.7°
    Cape Hatteras
    67.1°
    Asheville
    14.23"
    Cape Hatteras
    2.94"
    Lumberton
    South Carolina
    98
    Anderson
    Greenville-Spartanburg
    54°
    Anderson
    76.7°
    Charleston
    72.5°
    Greenville-Spartanburg
    6.87"
    Greenville-Spartanburg
    2.95"
    Florence


    ( 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 73.8  54.5  64.2   +1.1  92     2 40   16   2  0  0 0 82% 31 310  30   4.0       5 0 0 0  7 2400 AKQ
         BRI 73.6  59.53 66.57   0.0  87     2 39   16   0  0  0 0 67%                         0 0 0 0  0 0510/1600 LWX
         CEN 75.4  61.9  68.7   +0.8  86    14 44   16   0  0  0 0 77% 27 310   5   1.2  340 8 0 0 0  4 2400 LWX
         CHT 76.5  62.6  69.6   +1.8  88.9   4 45.1 16   0  0  0 0 86% 14 180  27   0.2  180 6 0 0 0  2 2400 LWX
         CHO 78.1  61.7  69.9   +3.1  89  4,14 41   16   0  0  0 0     25 070   1   2.3       6 0 0 0 13 2400 LWX
                                                                       25 350   5      
                                                                       25 330  12
                                                                       25 010  15
         DAN 80.4  60.0  70.2   +0.3  92   1,2 51   18   4  0  0 0 75% 38 240  28   3.7       5 0 0 0  8 2400 RNK
         DCA 77.6  64.9  71.3   -0.3  87  4,14 49   16   0  0  0 0 77% 36 350  15   6.3       5 0 0 0  0 2400 LWX
         IAD 76.8  61.3  69.1   +1.2  88  4,14 42   16   0  0  0 0 80% 37 350  15   4.7       7 0 0 0  4 2400 LWX
         GAV 80.33 64.10 72.22        89  4,14 47   16   0  0  0 0 77% 33 360  15             3 0 0 0  0 2400 AKQ
         HDV 76.4  61.6  69.0   -0.2  88    14 42   18   0  0  0 0 84% 16 045  15        180 6 0 0 0  1 2400 LWX
         LYH 77.4  59.3  68.4   +1.4  89     4 44   16   0  0  0 0 79% 41 040   6   3.5       6 0 0 0  6 2400 RNK
         NPN 81.9  65.3  72.7   +0.8  91.1  14 54.9 16   3  0  0 0     37 320  30   1.6  180 8 0 0 0  0 2400 AKQ
         FHC 81.37 74.50 74.5   +2.2  91.5   6 58.6 17   3  0  0 0 80% 30 360  16   1.0  202 3 0 0 0  0 2400 AKQ
         NOR 81.7  65.6  73.6   +1.8  92     6 57    1   2  0  0 0                             2 0 0 0  0 2400 AKQ
         ORF 81.9  67.8  74.9   +2.6  93     6 61 16,17  4  0  0 0 76% 41 030 15,16 7.3       3 0 0 0  2 2400 AKQ
         POR 80.5  65.6  73.1   +0.5  90.2   6 57.1  1   1  0  0 0 81% 34 068  16   2.3  101 5 0 0 0  0 2400 AKQ
         CTR 80.0  63.0  70.2   +0.4  88.2   4 48.5 16   0  0  0 0 85% 14 290  15   0.0  111 1 0 0 0  0 2400 AKQ
         MEC 80.22 64.15 72.44        89     4 47   16   0  0  0 0                             6 0 0 0  0 1700 AKQ
         RIC 80.6  64.5  72.5   +1.9  89     4 49   16   0  0  0 0 78% 47 360  15   5.2       5 0 0 0  5 2400 AKQ
         ROA 77.2  60.4  68.8   +0.7  93     1 46   16   2  0  0 0 74% 53 320   2   4.2       6 1 0 0  0 2400 AKQ
         WAL 79.3  65.5  72.4   +2.9  88    15 50   16   0  0  0 0     39 360  15   7.4       0 0 0 0  5 2400 AKQ
         WOO 72.2  60.2  66.2   -0.7  86     5 45   16   0  0  0 0                            12 0 0 0  7 2400 AKQ
         WSH 73.3  59.9  66.6   -0.15 85.3   4 44.0 16   0  0  0 0 91% 13 068  15   0.2  248 7 0 0 0  0 2400 LWX  
    NORTH CAROLINA
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
        
         STN  A      B    C     C1    D    E  F      G  H  I  J K K1  L  M     N    N1   N2  O P Q R R1 S    CWA
         -------------------------------------------------------------------------------------------------------
         AVL 76.4  57.7  67.1  +0.8  91     2 49    17  1  0  0 0 74% 39 330 30    4.5      0 0 0 0  1 2400 GSP
         MRH 82.5  69.2  75.9  +1.4  87  6,10 63     1  8  0  0 0     36 020 16    7.6      8 0 0 0  1 2400 MHX
                                                                      36 160 29
                                                                      36 160 30
         CLT 82.0  62.0  72.01 +1.2  96     2 53    30  3  0  0 0 73% 46 350  2    5.1      5 0 0 0  0 2400 GSP
         ECG 82.4  66.1  74.3  +2.1  91     6 58     1  2  0  0 0 79% 38 300 30    6.7      4 0 0 0  6 2400 AKQ
         FAY 84.0  65.4  74.7  +1.1  92    15 55    16  6  0  0 0 71% 45 280 30    5.5      8 0 0 0  6 2400 RAH
         GSO 80.0  62.4  71.2  +1.0  93     2 53    18  2  0  0 0 71% 36 210  6    5.2      6 0 0 0  2 2400 RAH
         HSE 83.4  71.9  77.7  +3.2  92     7 66    16  1  0  0 0 75% 52 280 30    7.3      0 0 0 0  0 2400 MHX
         HKY 78.9  61.7  70.3  +0.6  95     2 53 16,17  2  0  0 0     43 070  2    3.1      3 0 0 0  5 2400 GSP
         LBT 84.3  64.7  74.5  +1.5  92    15 56    30  6  0  0 0 77% 47 250  6    3.8      0 0 0 0  6 2400 ILM
         EWN 83.2  66.3  74.7  +0.8  90  6,14 60    30  2  0  0 0 78% 33 030 15    4.9      4 0 0 0  9 2400 MHX
         MON 80.6  62.4  71.5  +0.2  87.5  14 53.0  16  0  0  0 0 85% 20 045 15,16 0.0 225 7 0 0 0  2 2400 RAH
         RDU 82.2  64.8  73.5  +1.6  89 14,15 55 16,17  0  0  0 0 73% 36 190  6    4.5      5 0 0 0  2 2400 RAH
         RAL 79.4  61.7  70.6  -0.6  91    14 51    16  2  0  0 0     19      28             5 0 0 0  0 2400(T)/1930(P) RAH
         ROX 81.0  62.2  71.9  +3.3  90    14 52.0  16  1  0  0 0 77% 33 090 15        090 4 0 0 0  4 2200 RAH
         WHI 84.4  64.6  74.5  +1.6  91.6  14 54.1  16  6  0  0 0 80% 25 048 15    1.9 143 6 0 0 0  7 2400 ILM
         ILM 83.7  67.0  75.3  +0.7  91  6,15 59    16  2  0  0 0 77% 38 280 30    5.4     10 0 0 0  2 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 83.2  62.5  72.8  +0.8  98     2 54    10   5 0  0 0     43 100 22   5.1       4 0 0 0  1 2400 GSP
         CAE 86.9  65.9  76.4  +1.7  97  2,15 56    17  10 0  0 0 66% 55 270 25   4.7       3 0 0 0  4 2400 CAE
         CRE 83.8  67.7  75.8  +0.7  88  6,10 59    16   0 0  0 0 77% 39 190  6   6.4       8 0 0 0  2 2400 ILM
         CHS 85.8  67.7  76.7  +0.7  91    15 59    17   3 0  0 0     50 220  6   6.4       8 0 0 0  2 2400 CHS
         FLO 85.4  65.1  75.2  +1.1  94    15 57    17  10 0  0 0 73% 45 210  6   5.3       6 0 0 0  4 2400 ILM
         GSP 82.6  62.4  72.5  +0.5  98     2 55 17,30   5 0  0 0 68% 30 200  6   5.0       5 0 0 0  2 2400 GSP
         OGB 86.4  64.8  75.6  +0.7  95    15 56     8  11 0  0 0     37 040 16   4.2       0 0 0 0  2 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 79.9  57.5  68.7  +1.6   96     3 49   16   3  0  0 0     28 230  23  2.9       4 0 0 0  6   2400 MRX
                                                                       28 320  30
         DAV             59    +1     84     4 33   16   0  0  0 0                                         0700 PBZ

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

    VIRGINIA
    [Reminder: All NWS DATA HEREIN IS NOT OFFICIAL]
       
         STN  T      T1      U  U1    V    V1   W X   Y      Z  1   2 3    4    5     6   6A   7    7A    8    S
         ---------------------------------------------------------------------------------------------------------
         BCB  4.92  +1.82  2.17  5  2.17     5 13 2 33.42                0.0  8.2                             2400
         BRI  6.07  +2.56  2.30  6  3.51   5-6 14 2 39.00                0.0 11.3  30.300 16 29.80  30        0510/1600
                                                                                          17                  
         CEN  9.47  +5.55  4.49  8  4.49     8 11 3 35.38                0.0 13.8  30.41  17 29.68  30 30.05  2400
         CHT  8.42  +4.60  1.82  5  2.66   5-6 17 4 35.10                0.0 14.5  30.406 17 29.650 30 29.995 2400
         CHO  7.59  +3.11  3.38  5  4.91   5-6 14 2 35.49                                    29.66  30        2400
         DAN  5.52  +1.56  2.62 23  2.63 26-23 10 2 28.39                0.0 11.0  30.35  18 29.67  30        2400
         DCA  8.84  +5.12  2.82  7  3.09   7-8 14 3 35.14                0.0 10.1            29.66  30        2400
         IAD  7.93  +4.01  2.27  8  2.91   5-6 15 4 31.63                0.0 10.1            29.66  30        2400
         GAV  6.51         2.27  7  3.16   6-7 12 3 35.11                0.0  9.4  30.37  16 29.67  30 30.01  2400
                                                                                          17          
         HDV 11.33  +6.09  6.04  8             17 4 40.04                0.0 14.5  30.39  17 29.64  30        2400
         LYH  4.49  +0.61  1.69  6  1.76   5-6 13 2 28.15                0.0  8.4  30.39  17 29.70  30        2400
         NPN  7.57  +1.71  2.04  6  2.06   6-7 16 4 50.47                0.0 16.7  30.34  17 29.60  30        2400
         FHC  5.72  +0.96  1.82 23  2.06 22-23 13 2 32.37                0.0 18.0  30.309 16 29.587 30 29.989 2400
         NOR  7.84  +2.64  2.32 23             11 4 45.60                0.0 21.0                             2400
         ORF  7.26  +2.50  2.16 23  2.28 22-23 12 3 41.21                0.0 21.8  30.32  17 28.59  30        2400
         POR  8.40  +3.11  2.79 23  3.01 22-23 15 3 44.77                0.0 19.0  30.32  16 29.60  30 29.996 2400
         CTR  6.88  +3.42  2.31  7  2.43   6-7 13 3 38.19                0.0 12.1  30.34  17 29.63  30 29.969 2400
         MEC 13.31         3.72  7  5.02   6-7 10 7 55.18                0.0 10.8  30.15  17 29.53  30 29.03  2400
         RIC  8.95  +4.82  3.76  7  3.77   6-7 10 4 38.54                0.0 10.8  30.38  17 29.66  30        2400
         ROA  7.39  +3.50  2.51  5  3.99   5-6 15 3 32.48                0.0 10.4  30.40  18 29.71   5        2400
         WAL  3.27  -0.71  1.31 17  1.39 17-18 11 1 29.22                0.0 17.0  30.36  17 29.60  30        2400
         WOO  9.25  +5.30           2.24 14-15 20 5 40.80                0.0 12.8  30.38  18 29.76  30        2400
         WSH  8.63  +2.74  2.36  6  2.36     6 20 3 37.44                0.0 14.7  30.46  17 29.72  30        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  3.74  -0.07  1.53  5  1.78   5-6  9 1 33.22                 0.0 20.8  30.33  18 29.57   6         2400
         MRH  3.61  -2.35  1.38 26  1.38    26 13 1 32.51                 0.0    T  30.02  26 29.64  30         2400
         CLT  5.55  +2.31  1.62  5  1.65   5-6 11 3 34.73                 0.0  8.9  30.34  18 29.66   6         2400
         ECG  5.52  +1.59  1.22 23  1.62 23-24 15 1 29.69                 0.0       29.88  28 29.60  30         2400
         FAY  4.03  -0.37  1.89 25  1.89    25 13 1 29.79                                     29.68  30         2400
         GSO  7.25  +3.06  2.97 23  2.97    23 12 2 29.47                 0.0  9.9            29.68  30         2400
         HSE 14.23  +7.98  6.96 17  6.96    17 14 3 47.15                 0.0  6.0  30.23  16 29.64  30         2400
         HKY  3.73  +0.02  1.44 23  1.44    23  2 0 33.20                 0.0    T  30.32  18 29.61   6         2400
         LBT  2.94  -1.86  0.72  6  0.79   5-6  9 0 34.51                 0.0       30.29  18 29.61  30         2400
         EWN  3.54  -2.35  0.88  7  1.05 23-24 16 0 34.79                 0.0  4.4  30.27  18 28.63  30         2400
         MON  7.63  +3.51  2.63  6  2.64   6-7 13 2 34.52                 0.0 16.9  30.338 18 29.640 30  29.989 2400
         RDU  5.54  +1.18  1.59  6  1.59     6 12 2 34.82                 0.0  9.0            29.64  30         2400
         RAL  4.82  +0.56           0.94 14-15 14+0 30.75                 0.0  9.1  30.33  18 29.65  30         0730
         ROX  4.66  +1.17  1.86  6  1.86     6 12 1 33.02                 0.0 11.7  30.41  17 29.73  30  30.07  2200
         WHI  4.93  -0.56  1.28 16  1.74 15-16 13 2 44.94                 0.0  9.2  30.285 18 29.602 30  29.985 2400
         ILM  7.46  -0.38  2.43 22  2.47 22-23 14 2 38.47                 0.0  4.0  30.27  18 29.62  30         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  4.73  +0.89 2.50 22  3.29 21-22  8 2 27.48               0.0    T  30.31  17 29.55   6         2400
         CAE  3.36  -0.18 1.32 23  1.35 22-23 10 1 32.10               0.0  4.8  30.30  18 29.65   6         2400
         CRE  3.72  -2.56 1.17 22  1.17    22 12 1 27.36               0.0       30.27  18 29.63  30         2400
         CHS  3.60  -2.50 0.86 24  0.86    24 10 0 33.05               0.0  0.2  30.26  18 29.67  30         2400
         FLO  2.95  -0.72 0.75 25  1.45 25-26 13 0 24.46               0.0       30.30  18 29.63  30         2400
         GSP  6.87  +3.44 2.88 21  3.09 21-22  9 2 35.22               0.0  8.6  30.31  17 29.57   6         2400
         OGB  4.21  +0.42 1.79 26  1.86 25-26 11 1 32.24                         30.30  18 29.66  30         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  3.14  +0.15 2.23  5 2.28   5-6 13 1 36.14              0   0.0  15.6  30.28 17 29.58   6        2400
         DAV  6.3   +1.9  2.62  7            14 2 61.9               0   0.0   0.0     

    Virginia:

    Arlington - " THE MAIN STORY THIS MONTH IN WASHINGTON DC WAS THE PERSISTENT AND UNUSUALLY WET CONDITIONS. RAINFALL OF 8.84 INCHES THIS MONTH RANKS AS THE 5TH WETTEST SEPTEMBER ON RECORD...AND THE WETTEST SEPTEMBER SINCE 10.27 INCHES FELL IN 1999. THE BULK OF THE MONTHLY RAINFALL OCCURRED DURING A FOUR-DAY PERIOD FROM THE 5TH-8TH AS THE REMNANTS OF TROPICAL STORM LEE IMPACTED THE REGION. DURING THIS PERIOD...DAILY RAINFALL TOTALED AT LEAST 0.90 INCHES EACH DAY. A STRETCH OF FOUR-CONSECUTIVE DAYS OF DAILY RAINFALL OF 0.90 INCHES OR GREATER HAS BEEN RECORDED ONLY ONE OTHER TIME IN WASHINGTON DC...SEPTEMBER 23RD-26TH 1975...SINCE OFFICIAL RAINFALL RECORDS BEGAN IN 1871. SEPTEMBER 2011 WAS THE SECOND MONTH IN A ROW WITH AT LEAST EIGHT INCHES OF RAINFALL. CONSECUTIVE MONTHS WITH MONTHLY RAINFALL OF AT LEAST EIGHT INCHES HAVE ONLY BEEN REPORTED ONE OTHER TIME...IN 1905 9.95 INCHES FELL IN JULY FOLLOWED BY 9.75 INCHES IN AUGUST. MEASURABLE RAINFALL WAS REPORTED ON 14 DAYS THIS MONTH...MAKING IT ONLY THE SECOND SEPTEMBER SINCE 1934 TO HAVE MEASURABLE RAINFALL RECORDED ON THIS MANY DAYS. THE OTHER SEPTEMBER HAVING 14 DAYS OF MEASURABLE RAINFALL WAS IN 1999. AVERAGE MONTHLY TEMPERATURES WERE NEAR NORMAL. DUE TO THE PERSISTENT CLOUD COVER...MONTHLY MAX TEMPERATURES WERE SLIGHTLY BELOW NORMAL WHILE MIN TEMPERATURES WERE SLIGHTLY ABOVE NORMAL. SEPTEMBER 2011 WAS THE FIRST MONTH WHERE AVERAGE TEMPERATURES WERE NOT ABOVE NORMAL SINCE MARCH 2011. TEMPERATURES FAILED TO REACH 90 DEGREES DURING THE ENTIRE MONTH. " - [ + + ] - Notes from NWS Sterling, VA

    Bridgewater - " September was a wet month. However, we had no flooding here. I didn't get one drop in our basement. The grass stayed green most of the summer. On October 10, 1979, we had 7 inches of snow in Bridgewater. This was the greatest surprise for weather in my lifetime. Even the pro weather people were caught off guard. " - [ +/- +] - notes from Clayton

    Chantilly - Russ adds: " The story for September was the incredible rainfall totals, primarily on the 3rd thru the 9th, and seemingly endless days without seeing the sun. In fact we had over 1" of rain on the 5th (1.82"), 6th (1.36"), 7th (1.33" - new daily record) and 8th (1.79") as the remnants of Hurricane Lee lingered over us. With 17 days of measurable rainfall, we set a new monthly record. Temperatures failed to reach 90 even once, primarily due to the endless cloud cover, with a mean monthly temperature of 69.6, mean high temperature of 76.5, and mean low temperature of 62.6. A record low high temp was tied on the 6th (63.5) and broken on the 17th (62.4). A record high low temp was set on the 9th (69.1) and 27th (69.4) and tied on the 25th (68.3), 26th (68.3), and 28th (65.9). Precipitation was 4.60" above normal. Thunderstorms rolled through on the 3rd, 7th, 8th, 11th, 14th, and 28th. Dense fog observed on the 23rd and 29th. *Please note, anemometer is currently partially obstructed from the North and East " - [ + + ]

    Dulles - from NWS Sterling (KLWX): " THE MAIN STORY THIS MONTH AT DULLES WAS THE PERSISTENT AND UNUSUALLY WET CONDITIONS. THE MONTHLY RAINFALL OF 7.93 INCHES NOW RANKS THIS MONTH AS THE 5TH WETTEST SEPTEMBER ON RECORD...THE WETTEST SEPTEMBER SINCE 1999 WHEN 9.32 INCHES FELL...AND THE WETTEST MONTH SINCE MAY 2009 WHEN 10.26 INCHES WAS RECORDED. THE BULK OF THE MONTHLY RAINFALL THIS MONTH OCCURRED DURING A FOUR-DAY PERIOD FROM THE 5TH-8TH AS THE REMNANTS OF TROPICAL STORM LEE IMPACTED THE REGION. DURING THIS PERIOD...DAILY RAINFALL TOTALED AT LEAST ONE INCH EACH DAY. FOUR-CONSECUTIVE DAYS OF DAILY RAINFALL OF ONE INCH OR GREATER HAS BEEN RECORDED ONLY ONE OTHER TIME AT DULLES...SEPTEMBER 23RD-26TH 1975...SINCE OFFICIAL RAINFALL RECORDS BEGAN IN 1962. ONE DAILY MAXIMUM RAINFALL RECORD WAS BROKEN ON THE 8TH. THE DAILY RAINFALL OF 1.11 INCHES THAT DAY BROKE THE PREVIOUS RECORD OF 0.56 INCHES SET IN 1969. MEASURABLE RAINFALL WAS REPORTED ON 15 DAYS THIS MONTH. ONLY 1975 HAD MORE DAYS IN SEPTEMBER WITH MEASURABLE RAINFALL...16 DAYS. DUE TO THE PERSISTENT CLOUD COVER...MONTHLY MAX TEMPERATURES WERE SLIGHTLY BELOW NORMAL WHILE MIN TEMPERATURES WERE ABOVE NORMAL. FOR THE MONTH...THREE DAILY RECORD LOW MAX TEMPERATURES WERE EITHER TIED OR BROKEN...ON THE 6TH...16TH AND 17TH...WHILE THREE DAILY RECORD HIGH MIN TEMPERATURES WERE EITHER TIED OR BROKEN...ON THE 9TH...26TH AND 27TH. TEMPERATURES FAILED TO REACH 90 DEGREES DURING THE MONTH. " - [ + + ]

    Glen Allen - Lowell sends these notes: " September was warmer and much wetter than average as the monthly mean temperature was 72.2F, a 0.4F departure based on my three year average and a +1.9F departure when compared to Ashland, Virginia (new thirty year average). The maximum temperature for September was 89F on the 4th and 14th; the lowest minimum was 47F recorded on the 16th. The Richmond International Airport mean temperature was 72.5, which was the 25th warmest September since 1897. But on the 17th the Airport had a high of only 61F, which was a new record low maximum temperature for the date, and a daily range of only 4F, which tied the record for the lowest daily temperature range. The two previous records were 62F in 1924 and a 4F daily temperature range in 1957 and 1938. The main event of the month occurred from the 6th to the 8th. The remnants of Lee gave record rainfall amounts and many places received more rain than Glen Allen. The 6.51 inches of precipitation for September at Glen Allen was a departure of +2.58 inch when compared to the Ashland, VA average and a new record rainfall amount for September. It was also the wettest month since December of 2009 at Glen Allen. The maximum precipitation recorded in a day here was 2.27 inches on the 7th. September had measurable precipitation on twelve days but 17 days when counting trace amounts and was the second cloudiest month on record at Glen Allen. The cloudiness contributed to the highest monthly average relative humidity and highest average monthly minimum temperature on record for this station. (Records since August of 2008) The average relative humidity was 77.2%, which was 13.7 % more than last September because of the cloudiness. After the only cool period just after mid-September, that lasted four days, Glen Allen had an exceptionally cloudy showery and muggy weather pattern that lasted until the end of the month. The Richmond International Airport had 3.76 inches on the 7th a new record rainfall amount for the date (previous record was 2.15 in 1934) and 8.95 inches for the month, which is the 9th greatest rainfall total for September since 1887. " - [ + + ] 

    Herndon - Randy sends these notes: " September was close to normal for temperature, but well-above normal for precipitation. The temperatures ranged between a high of 88 and a low of 42. On the precipitation side, the month was 6.09" above normal with 11.33" measured. This was mostly due to the remnants of TS Lee, which dumped heavy rainfall amounts over the area from the 5th to the 9th totaling 10.18" for the five-day period. The heaviest rain fell on the 8th when 6.04" fell which caused some flooding in the area. Over 1" of rain fell on each day from the 5th thru the 8th. We had rain on 17 days spread throughout the month. For the year, we are now over 4" above normal. With so much rain and cloudy conditions through the month, the average humidity was very high at 84.2%, the highest I have recorded for any month in the past five years. " - [ - + ]

    Portsmouth - " SEPTEMBER 2011 WAS THE 8TH WETTEST SEPTEMBER IN THE DATABASE TO 1976. September's average temperature (73.1) was 0.5 ABOVE NORMAL. Rainfall was ABOVE NORMAL by 3.11" and was 159% of normal relative to normal Septembers for the period from 1976 to 2010. Frontal passages were noted on the 15th and 30th. Station Records: 7th - TEMPERATURE TIED Maximum Minimum 75 [previous 1985]; 15th - WIND GUST 32mph [previous 30mph 1983]; 16th - TEMPERATURE Minimum Maximum 64 [previous 67 1984]; 17th - RAINFALL 1.46" [previous 0.66" 1995]; 17th - TEMPERATURE Minimum Maximum 62 [previous 67 1986]; 18th - TEMPERATURE TIED Minimum Maximum 66 [previous 1990]; 23rd - RAINFALL 2.79" [previous 1.17" 2000]. " - [ + + ] 

    Woodstock - Bob adds these notes: " Precipitation this month was the greatest I have recorded in 26 years of record keeping. About an inch and a half more than in September 2004, my previous high. " - [ - + ]

    North Carolina:

    Greensboro - NWS RAH notes: " ON SEPTEMBER 23RD...A RECORD DAILY RAINFALL OF 2.97 INCHES WAS SET AT THE PIEDMONT TRIAD INTERNATIONAL AIRPORT. THIS BROKE THE OLD RECORD OF 1.71 INCHES SET IN 2003. ON SEPTEMBER 16TH...THE HIGH TEMPERATURE AT THE PIEDMONT TRIAD INTERNATIONAL AIRPORT WAS 61 DEGREES. THIS BROKE THE RECORD LOW MAXIMUM TEMPERATURE OF 68 DEGREES...LAST SET IN 2000. ON SEPTEMBER 17TH...THE HIGH TEMPERATURE AT THE PIEDMONT TRIAD INTERNATIONAL AIRPORT WAS 59 DEGREES. THIS BROKE THE OLD RECORD LOW MAXIMUM TEMPERATURE OF 62 DEGREES...LAST SET IN 1959. ON SEPTEMBER 27TH...THE MINIMUM TEMPERATURE AT THE PIEDMONT TRIAD INTERNATIONAL AIRPORT WAS 69 DEGREES. THIS TIED THE RECORD HIGH MINIMUM TEMPERATURE PREVIOUSLY SET IN 1999. " - [ + + ] 

    Raleigh - NWS RAH notes: " ON SEPTEMBER 6TH...THE MINIMUM TEMPERATURE AT THE RALEIGH-DURHAM INTERNATIONAL AIRPORT WAS 74 DEGREES. THIS TIED THE RECORD HIGH MINIMUM TEMPERATURE PREVIOUSLY SET IN 1983. THIS ALSO TIED SEPTEMBER`S ALL-TIME RECORD HIGH MINIMUM TEMPERATURE PREVIOUSLY SET ON SEPTEMBER 1ST 2000. ON SEPTEMBER 16TH...THE HIGH TEMPERATURE AT THE RALEIGH-DURHAM INTERNATIONAL AIRPORT WAS 60 DEGREES. THIS BROKE THE OLD RECORD LOW MAXIMUM TEMPERATURE OF 67 DEGREES SET IN 1951. ON SEPTEMBER 17TH...THE HIGH TEMPERATURE AT THE RALEIGH-DURHAM INTERNATIONAL AIRPORT WAS 61 DEGREES. THIS BROKE THE OLD RECORD LOW MAXIMUM TEMPERATURE OF 64 DEGREES SET IN 1959. ON SEPTEMBER 25TH...THE MINIMUM TEMPERATURE AT THE RALEIGH-DURHAM INTERNATIONAL AIRPORT WAS 70 DEGREES. THIS TIED THE RECORD HIGH MINIMUM TEMPERATURE PREVIOUSLY SET IN 1980. ON SEPTEMBER 27TH...THE MINIMUM TEMPERATURE AT THE RALEIGH-DURHAM INTERNATIONAL AIRPORT WAS 73 DEGREES. THIS BROKE THE PREVIOUS RECORD HIGH MINIMUM TEMPERATURE OF 72 DEGREES PREVIOUSLY SET IN 2002. " - [ + + ]

    Raleigh - Bob notes: " THE AVERAGE DAILY TEMPERATURE FOR SEPTEMBER WAS 0.6 DEGREES BELOW NORMAL .IN FACT, THE HIGH TEMPERATURE FOR SEPTEMBER 16TH WAS ONLY 60 DEGREES (32 DEGREES BELOW NORMAL). RAINFALL WAS 0.56 DEGREES ABOVE NORMAL WITH 4.82" FOR THE YEAR, PRECIPITATION IS 3.02" BELOW NORMAL. NO SEVERE WEATHER WAS OBSERVED; HOWEVER, A TORNADO WATCH WAS ISSUED FOR OVER 12 HOURS ON THE 6TH. " - [ - + ]

    Moncure - Mac send these additional notes: " September was a rain maker. Nearly wiping out our deficit for the year. Cooler days helped as well. 30YR DATA BASED ON 30YR CLIMATOLOGICAL DATA, SANFORD 8 NE, NC. STATION #317656, CLIMATE DIV 4 " - [ + + ]

    Nearby Cities:

    Davis, WV - from Dave Lesher's website: " September 2011 had a mean temperature of 59 and that was ABOVE NORMAL (+1). The month's rainfall total of 6.3 inches was 1.9" ABOVE NORMAL. Rainfall for the year of 61.9" was 18.3" ABOVE NORMAL. " - [ -/+  + ]



    COLUMN DENOTATIONS:

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



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

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

         National Weather Service Homepages

         National Climatic Data Center, Asheville, NC

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

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