The Atlantic Coast Observer Network - Virginia/North Carolina/South Carolina

http://www.genserva.com/acon

SUMMARY OF CLIMATOLOGICAL DATA 



SEPTEMBER 2012

...NEAR NORMAL AVERAGE TEMPERATURES...
..RAINFALL AVERAGE BELOW NORMAL...

  • CLIMATE WATCH MAGAZINE       Enjoy these articles, images, and videos at ClimateWatch Magazine from NOAA. Quite interesting articles with the current feature June wind shift a little something extra behind recent Arctic ice losses. Visit this online feature magazine at http://www.climatewatch.noaa.gov/Articles


  • FORECASTING: TODAY & YESTERDAY!       (from Kevin Shaw, ACON DC/MD/DE) - Pretty good, comprehensive article on forecasting today and yesterday, looking in at NCEP and NCAR, supercomputers, and other great stuff... http://www.nytimes.com/2012/09/09/magazine/the-weatherman-is-not-a-moron.html?pagewanted=5&_r=1


  • NOAA WEATHER RADIO ALL HAZARDS (NWR)       NOAA WEATHER RADIO ALL HAZARDS (NWR) IS A NATIONWIDE NETWORK OF RADIO STATIONS BROADCASTING CONTINUOUS WEATHER INFORMATION DIRECTLY FROM THE NEAREST NATIONAL WEATHER SERVICE OFFICE. NWR BROADCASTS OFFICIAL WEATHER SERVICE WARNINGS, WATCHES, FORECASTS AND OTHER HAZARD INFORMATION 24 HOURS A DAY, 7 DAYS A WEEK. WORKING WITH THE FEDERAL COMMUNICATION COMMISSION'S (FCC) EMERGENCY ALERT SYSTEM , NWR IS AN "ALL HAZARDS" RADIO NETWORK, MAKING IT YOUR SINGLE SOURCE FOR COMPREHENSIVE WEATHER AND EMERGENCY INFORMATION. IN CONJUNCTION WITH FEDERAL, STATE, AND LOCAL EMERGENCY MANAGERS AND OTHER PUBLIC OFFICIALS, NWR ALSO BROADCASTS WARNING AND POST-EVENT INFORMATION FOR ALL TYPES OF HAZARDS INCLUDING NATURAL (SUCH AS EARTHQUAKES OR AVALANCHES), ENVIRONMENTAL (SUCH AS CHEMICAL RELEASES OR OIL SPILLS), AND PUBLIC SAFETY (SUCH AS AMBER ALERTS OR 911 TELEPHONE OUTAGES). KNOWN AS THE "VOICE OF NOAA'S NATIONAL WEATHER SERVICE," NWR IS PROVIDED AS A PUBLIC SERVICE BY THE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION (NOAA), PART OF THE DEPARTMENT OF COMMERCE. NWR INCLUDES MORE THAN 985 TRANSMITTERS , COVERING ALL 50 STATES, ADJACENT COASTAL WATERS, PUERTO RICO, THE U.S. VIRGIN ISLANDS, AND THE U.S. PACIFIC TERRITORIES. NWR REQUIRES A SPECIAL RADIO RECEIVER OR SCANNER CAPABLE OF PICKING UP THE SIGNAL. CLICK ON THE FOLLOWING LINK TO FIND OUT MORE ABOUT WHERE TO LISTEN TO NOAA WEATHER RADIO IN YOUR AREA: NOAA RADIO - http://www.nws.noaa.gov/nwr/nwrbro.htm


  • DROUGHT MONITOR    http://droughtmonitor.unl.edu/    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 Station Extremes - SEPTEMBER 2012
    State
    Maximum Temperature
    Minimum
    Temperature
    Warmest
    Average
    Temperature
    Coldest
    Average
    Temperature
    Maximum
    Precipitation
    Minimum
    Precipitation
    Virginia
    95°
    Arlington
    35°
    Blacksburg
    72.4°
    Norfolk (ORF)
    63.5°
    Blacksburg
    5.90"
    Woodstock
    1.27"
    Norfolk (ORF)
    North Carolina
    97°
    Elizabeth City
    38°
    Raleigh (RAL)
    74.9°
    Cape Hatteras
    67.2°
    Asheville
    8.17"
    Raleigh (RAL)
    1.44"
    Fayetteville
    South Carolina
    96
    Columbia
    49°
    Anderson
    Greenville-Spartanburg
    76.3°
    Charleston
    72.0°
    Greenville-Spartanburg
    3.84"
    Orangeburg
    0.87"
    North Myrtle Beach


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


    TEMPERATURE / WINDS/ ELEMENTS FOLLOWED BY
    PRECIPITATION / BAROMETRIC PRESSURE

    VIRGINIA | NORTH CAROLINA | 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 CWA TIME RECORDED
    BCB 74.90 52.10 63.50 0.40 86.0 1 35.00 24 0 0 0 0 79% 40 320 4 2.5 1 0 0 0 5 LWX 2400
    BRI 75.60 54.50 65.10 -1.00 86.0 0 0 0 0 68% 0 0 0 0 0 LWX 2400
    CHT 79.50 58.30 68.90 1.00 92.2 1 45.20 25 3 0 0 0 75% 27 158 18 0.3 180 4 0 0 0 0 LWX 2400
    CHO 78.30 57.30 67.80 1.00 88.0 7 43.00 25 0 0 0 0 37 200 18 3.8 3 0 0 0 3 LWX 2400
    DAN 81.80 58.30 70.00 0.10 93.0 1 41.00 25 5 0 0 0 70% 41 290 28 3.2 4 0 0 0 1 RNK 2400
    DCA 80.70 63.70 72.20 1.20 95.0 1 53.00 25 3 0 0 0 64% 61 210 18 7.6 4 0 0 0 2 LWX 2400
    IAD 79.80 56.40 68.10 0.20 92.0 1 45.00 25,30 4 0 0 0 68% 47 310 8 5.9 5 0 0 0 2 LWX 2400
    GAV 81.13 59.27 70.20 -1.54 91.0 2 46.00 24 2 0 0 0 71% 30 180 18 5 0 0 0 0 AKQ 2400
    HDV 78.90 57.40 68.20 -0.90 91.0 1 45.00 20 3 0 0 0 75% 26 270 18 225 4 0 0 0 0 LWX 2400
    LYH 78.30 55.80 67.10 0.10 90.0 1 40.00 25 1 0 0 0 73% 35 280 18 3.1 0 0 0 0 3 RNK 2400
    NPN 80.60 60.40 70.00 -2.00 92.6 1 47.20 25 2 0 0 0 31 290 6 0.9 225 4 0 0 0 0 AKQ 2400
    FHC 79.84 64.36 72.10 0.30 91.1 2 53.70 24 1 0 0 0 75% 38 18 212 1.0 202 0 0 0 0 AKQ 2400
    NOR 79.40 61.70 70.60 -1.20 90.0 1 47.00 25 1 0 0 0 0 0 0 0 0 AKQ 2400
    ORF 80.40 64.30 72.40 0.10 91.0 1 51.00 25 1 0 0 0 70% 45 190 18 7.2 0 0 0 0 0 AKQ 2400
    POR 80.00 61.90 71.00 -1.50 90.8 2 48.60 25 2 0 0 0 78% 29 203 18 2.2 350 3 0 0 0 0 AKQ 2400
    CTR 80.10 56.90 67.20 -2.60 90.7 2 42.00 24 1 0 0 0 82% 17 225 18 0.1 100 1 0 0 0 0 AKQ 2400
    MEC 81.92 60.04 71.28 94.0 1 46.00 24 1 0 0 0 5 0 0 0 0 AKQ 2400
    RIC 80.60 60.00 70.30 -0.30 91.0 1,2 49.00 24,25 2 0 0 0 71% 37 320 8 5.6 5 0 0 0 6 AKQ 2400
    ROA 78.40 58.10 68.20 0.20 90.0 1 41.00 24 1 0 0 0 69% 46 320 8 4.3 4 0 0 0 0 RNK 2400
    WAL 79.10 62.00 70.60 1.10 91.0 1 49.00 24 1 0 0 0 43 200 18 7.3 7 0 0 0 0 AKQ 2400
    WOO 75.10 57.90 66.50 -0.40 89.0 1 47.00 20,24,25 0 0 0 0 1 0 0 0 3 LWX 0800
    WSH 75.80 59.90 66.30 -0.39 86.7 7 45.10 24 0 0 0 0 83% 13 135 18 0.3 248 4 0 0 0 0 LWX 2400
    Averages 79.10 59.12 68.98 -0.29 90.55 45.70 1.5 0.0 0.0 0.0 73% 35.7 3.5 3.0 1.1
    STN A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    STN A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    AVL 77.1 57.2 67.2 0.90 87.0 1 41.0 25 0 0 0 0 74% 41 340 8 4.3 0 0 0 0 8 GSP 2400
    MRH 81.0 66.4 73.7 -0.80 88.0 2 55.0 24,25 0 0 0 0 47 210 18 7.2 0 0 0 0 1 MHX 2400
    CLT 81.9 60.8 71.4 0.60 94.0 1 46.0 25 4 0 0 0 71% 38 240 3 4.8 7 0 0 0 1 GSP 2400
    ECG 84.2 64.9 74.5 2.30 97.0 1 49.0 25 6 0 0 0 67% 36 210 21 6.9 0 0 0 0 2 AKQ 2400
    FAY 84.2 63.0 73.6 0.00 95.0 1 50.0 25 9 0 0 0 73% 26 030,180 6,18 5.3 4 0 0 0 3 RAH 2400
    GSO 79.6 60.6 70.1 -0.10 91.0 1,2 47.0 25 2 0 0 0 73% 40 300 8 5.1 8 0 0 0 2 RAH 2400
    HSE 81.3 68.6 74.9 0.40 89.0 1,2 57.0 24 0 0 0 0 74% 43 220 18 6.7 0 0 0 0 2 MHX 2400
    HKY 79.4 60.2 69.8 0.10 91.0 1 45.0 25 2 0 0 0 40 300 8 5.1 8 0 0 0 2 GSP 2400
    LBT 84.2 62.6 73.4 0.40 95.0 2 48.0 25 7 0 0 0 75% 24 220,040 8,19 3.7 7 0 0 0 6 ILM 2400
    EWN 82.7 64.0 73.3 -0.60 95.0 1 50.0 25 4 0 0 0 75% 37 180 18 4.6 5 0 0 0 4 MHX 2400
    RDU 80.9 61.3 71.1 -0.80 92.0 1 48.0 25 3 0 0 0 73% 35 280 18 4.3 7 0 0 0 2 RAH 2400
    RAL 80.7 58.3 69.5 -1.80 93.0 1 38.0 14 2 0 0 0 25 8 2 0 0 0 0 RAH 2400
    ROX 79.3 59.0 69.4 0.80 93.0 0 45.0 24 2 0 0 0 76% 33 180 18 180 5 0 0 0 1 RAH 2400
    WHI 83.8 62.3 73.1 0.10 94.9 2 48.0 25 6 0 0 0 75% 30 205 18 1.8 117 2 0 0 0 4 ILM 2400
    ILM 83.4 65.3 74.3 -0.30 96.0 1 53.0 25 4 0 0 0 75% 38 240 18 5.1 7 0 0 0 2 ILM 2400
    Averages 81.6 62.3 72.0 0.1 92.7 48.0 3.4 0.0 0.0 0.0 73% 35.5 5.0 4.1 2.7
    STN A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    STN A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    AND 82.0 62.7 72.4 0.4 92 1 49 24 1 0 0 0 74% 39 360 8 4.0 3 0 0 0 1 GSP 2400
    CAE 85.9 65.1 75.5 0.8 96 1 52 25 6 0 0 0 69% 32 200 3 3.9 2 0 0 0 0 CAE 2400
    CRE 83.0 66.3 74.7 -0.4 92 1 53 25 2 0 0 0 75% 43 220 18 6.6 3 0 0 0 2 ILM 2400
    CHS 86.0 66.7 76.3 0.3 93 1,2 54 25 6 0 0 0 37 210 7 6.2 3 0 0 0 1 CHS 2400
    FLO 84.7 64.8 74.8 0.6 95 1,2 51 25 6 0 0 0 71% 30 240 8 4.8 3 0 0 0 3 ILM 2400
    GSP 81.7 62.3 72.0 0.0 92 1 49 25 2 0 0 0 73% 30 200 18 4.2 5 0 0 0 0 GSP 2400
    OGB 85.3 64.6 74.9 0.0 94 2 53 25,26 4 0 0 0 35 10 29 3.6 0 0 0 0 4 CAE 2400
    Averages 84.1 64.6 74.4 0.2 93.4 51.6 3.9 0.0 0.0 0.0 72% 35.1 4.8 2.7 1.6
    STN A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    STN A B C C1 D E F G H I J K K1 L M N N1 N2 O P Q R R1 CWA TIME RECORDED
    TRI 78.5 55.8 67.1 0.0 89 1,7 39 24 0 0 0 0 36 330 8 2.0 4 0 0 0 8 MRX 2400
    DAV 68.1 48.0 58.1 80 8 35 23,24,25 0 0 0 0 PBX 2400
    STN T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    BCB 3.60 0.50 1.20 18 1.20 18 10 1 31.32 0.0 10.0 RNK 2400
    BRI 3.11 -0.55 1.68 18 1.69 17-18 11 1 33.00 0.0 4.8 30.260 13 29.810 6 LWX 2400
    CHT 3.93 0.01 1.24 2 1.26 2-3 12 2 26.11 0.0 2.6 30.373 13 29.576 8 30.027 LWX 2400
    CHO 2.30 -2.18 1.09 18 1.21 17-18 11 1 28.88 30.380 13 29.610 8 LWX 2400
    DAN 3.87 -0.09 0.98 18 1.33 17-18 10 0 23.98 0.0 3.0 30.370 13 29.660 8 RNK 2400
    DCA 4.29 0.57 1.64 1 1.64 1 10 1 23.00 0.0 2.0 29.590 LWX 2400
    IAD 2.71 -1.21 1.17 18 1.21 17-18 11 1 22.94 0.0 2.8 29.590 LWX 2400
    GAV 1.56 0.71 18 0.78 17-18 8 0 26.07 0.0 7.4 30.390 13 29.630 8 30.050 AKQ 2400
    HDV 3.29 -1.85 1.10 8 11 1 23.60 0.0 2.6 30.360 13 29.550 6 AKQ 2400
    LYH 2.35 -1.53 1.09 18 1.20 17-18 9 1 24.85 0.0 8.5 30.400 13 29.660 18 RNK 2400
    NPN 2.11 -3.84 0.82 2 0.85 2-3 10 0 56.92 0.0 0.8 30.380 12 29.670 8 AKQ 2400
    FHC 2.73 -2.03 0.97 2 0.98 2-3 10 0 50.84 0.0 0.2 30.384 12 29.697 8 30.063 AKQ 2400
    NOR 1.66 -3.44 0.54 6 0.56 5-6 10 0 38.99 0.0 0.5 AKQ 2400
    ORF 1.27 -3.49 0.46 6,18 0.50 18-19 9 0 33.95 0.0 0.5 30.370 12 29.670 8 AKQ 2400
    POR 1.97 -3.22 0.69 18 0.70 18-19 12 0 53.56 0.0 0.5 30.370 12 29.690 8 30.047 AKQ 2400
    CTR 3.71 0.25 1.70 18 1.77 17-18 12 1 27.79 0.0 6.1 30.360 13 29.620 8 29.620 AKQ 2400
    MEC 1.67 0.46 18 0.70 18-19 8 0 30.69 0.0 7.5 30.000 25 29.470 8 29.780 AKQ 2400
    RIC 4.05 -0.08 1.57 2 1.57 2 9 2 29.42 0.0 4.5 30.400 13 29.650 8 AKQ 2400
    ROA 3.60 -0.29 1.73 18 2.33 17-18 10 1 28.42 0.0 6.1 30.410 13 29.660 18 RNK 2400
    WAL 5.76 1.78 2.45 6 2.45 6 8 2 34.22 0.0 0.5 30.380 12 29.660 8 AKQ 2400
    WOO 5.90 1.88 1.81 18-19 9 2 29.96 0.0 5.6 30.550 13 29.960 18 LWX 0800
    WSH 4.25 -1.77 2.55 18 2.57 17-18 10 0 27.98 0.0 3.8 30.430 13 29.670 8 LWX 2400
    Averages 3.17 -1.03 1.23 1.35 10.0 32.08 0.0 3.8 30.365 29.655 29.931
    STN T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    STN T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    AVL 5.93 2.12 3.28 18 3.94 17-18 10 2 30.76 0.0 T 30.370 13 29.700 18 GSP 2400
    MRH 4.23 -1.73 1.22 3 1.25 2-3 11 1 34.37 0.0 T 30.320 12 29.770 9 MHX 2400
    CLT 4.82 1.58 1.02 8 1.02 8 10 1 26.32 0.0 T 30.360 13 29.690 8 GSP 2400
    ECG 1.64 -2.29 0.39 6 0.55 8-9 6 0 38.13 30.360 12 29.720 8 AKQ 2400
    FAY 1.44 -2.96 0.67 6 0.67 6 7 0 33.18 0.0 29.690 8 RAH 2400
    GSO 4.64 0.45 1.10 29 1.26 28-29 12 1 31.38 0.0 T 29.690 8 RAH 2400
    HSE 4.48 -1.77 1.00 29 1.14 29-30 14 1 40.73 0.0 T 30.330 12 29.760 9 MHX 2400
    HKY 5.40 1.69 1.15 18 1.62 17-18 11 1 32.56 30.340 13 29.670 18 GSP 2400
    LBT 1.84 -2.96 0.52 8 0.53 8-9 8 0 35.27 0.0 30.350 12 29.710 8 ILM 2400
    EWN 4.34 -1.55 0.95 6 0.99 2-3 14 0 42.79 0.0 T 30.350 12 29.760 8 MHX 2400
    RDU 7.83 3.47 1.85 2 2.31 2-3 11 2 43.29 0.0 0.9 29.690 8 RAH 2400
    RAL 8.17 4.02 1.85 5-6 9 0 38.07 0.0 0.6 30.370 12 29.750 18 RAH 2400
    ROX 5.01 1.52 1.53 18 1.53 18 11 1 34.59 0.0 3.3 30.470 12 29.770 8 30.140 RAH 2400
    WHI 3.57 -1.92 1.09 30 1.09 30 7 1 41.98 0.0 3.3 30.390 12 29.766 8 30.086 ILM 2400
    ILM 5.00 -2.84 1.75 2 1.94 1-2 11 1 35.58 0.0 T 30.330 12 29.750 8 ILM 2400
    Averages 4.56 -0.21 1.25 1.45 10.1 0.8 35.93 0.0 0.6 30.362 29.726 30.113
    STN T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    STN T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    AND 2.47 -1.37 0.60 3 0.63 3-4 11 0 29.21 30.350 12 29.700 8 GSP 2400
    CAE 1.84 -1.70 0.69 18 0.69 18 9 0 33.93 0.0 0.0 30.340 12 29.710 8 CAE 2400
    CRE 0.87 -5.41 0.85 18 0.85 18 2 0 29.47 0.0 30.330 12 29.750 8 ILM 2400
    CHS 2.02 -4.08 0.94 7 0.94 7 5 0 35.83 0.0 0.0 30.300 12 29.750 18 CHS 2400
    FLO 3.17 -0.50 1.76 8 1.77 8-9 9 1 31.90 30.340 12 29.710 8 ILM 2400
    GSP 2.66 -0.77 0.76 3 0.97 3-4 10 0 26.77 0.0 T 30.340 13 29.690 18 GSP 2400
    OGB 3.84 0.05 1.68 3 1.70 3-4 8 2 32.51 30.330 12 29.730 8 CAE 2400
    Averages 2.41 -1.97 1.04 1.08 7.7 0.4 31.37 0.0 T 30.333 29.720
    STN T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    TRI 6.01 3.02 2.00 18 2.71 17-18 8 3 38.66 0.0 1.2 30.340 13 29.62 18 MRX 2400
    DAV 4.48 1.04 18 9 1 40.19 0 108.2 PBX 2400
    Averages
    STN T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED


    Virginia: Arlington - " SEPTEMBER 2012 WAS THE 11TH CONSECUTIVE MONTH IN WASHINGTON DC WITH A MONTHLY TEMPERATURE ABOVE THE 1981-2010 MONTHLY NORMAL...BUT ONLY BY SLIGHTLY MORE THAN 1 DEGREE. TWO DAILY HIGH MINIMUM TEMPERATURE RECORDS WERE SET THIS MONTH. A LOW TEMPERATURE OF 76 DEGREES ON THE 4TH TIED THE DAILY HIGH MINIMUM TEMPERATURE RECORD OF 76 DEGREE LAST SET IN 1953. A LOW TEMPERATURE OF 78 DEGREES ON THE 5TH BROKE THE PREVIOUS DAILY HIGH MINIMUM TEMPERATURE RECORD OF 76 DEGREES SET IN 1983. AFTER 8 CONSECUTIVE MONTHS OF BELOW NORMAL RAINFALL...SEPTEMBER 2012 WAS THE FIRST MONTH THIS YEAR WITH MONTHLY RAINFALL ABOVE NORMAL. THUNDERSTORMS DURING THE AFTERNOON ON THE 18TH PRODUCED A 61 MPH WIND GUST AT REAGAN NATIONAL AIRPORT. " - [ + + ] - Notes from NWS Sterling, VA

    Bridgewater - Clayton reports: " The precipitation for year is now 2.56 above normal. There were no frost, thunderstorms, or tropical storms during the month. The grass is green and the farmers' corn crops have been great. We have had a great summer! " - [ - - ]

    Chantilly - Russ sends these additional notes: " Summer's heat quickly faded. After September 9th, we didn't top 90 again. The mean monthly temperature was 68.9 (+1.0). The mean high temperature was 79.5 (+0.1) and the mean low temperature was 58.3 (+2.0). September temperature records set include a new high minimum temp on the 4th (72.1), and a tied high minimum temperature on the 2nd (71.6) and 5th (73.3). Precipitation was 0.01" above normal at 3.93". A record 1.24" of rain fell on the 2nd. Thunderstorms were observed on the 2nd, 8th, 26th and 27th. *Please note, anemometer is currently partially obstructed from the North and East " - [ + + ]

    Dulles - from NWS Sterling (KLWX): " THE MONTHLY AVERAGE TEMPERATURE AT DULLES WAS JUST SLIGHTLY ABOVE NORMAL FOR THE MONTH OF SEPTEMBER 2012...THE THIRD MONTH IN A ROW TO FEATURE ABOVE NORMAL AVERAGE MONTHLY TEMPERATURES. AFTER A WARM START TO THE MONTH...16 OUT OF THE LAST 20 DAYS THIS SEPTEMBER AT DULLES HAD BELOW NORMAL TEMPERATURES. THE MIN READING OF 46 DEGREES ON THE 11TH WAS THE COOLEST TEMPERATURE SINCE MAY 18 OF 2012 WHEN THE TEMPERATURE DIPPED TO 45 DEGREES. A DAILY RECORD HIGH MINIMUM TEMPERATURE OF 71 DEGREES WAS SET AT WASHINGTON DULLES DC YESTERDAY. THIS BREAKS THE OLD RECORD OF 70 SET IN 1979. PRECIPITATION WAS BELOW NORMAL AGAIN THIS MONTH. EIGHT OUT OF THE NINE MONTHS THUS FAR IN 2012 HAVE HAD BELOW NORMAL PRECIPITATION. " - [ + - ]

    Glen Allen - Lowell reports: " September was cooler and much drier than average as the monthly mean temperature was 70.2F, a -1.5F departure based on my four year average and the coolest September since 2009 with a 69.2F mean temperature. The maximum temperature for September was 91F on the 2nd and the lowest minimum was 46F recorded on the 24th that was a new record low for September (records since 2008). The average minimum temperature was 59.5 was also the lowest on record. This occurred because of many clear mornings, which tied with 2010 for the greatest number of clear mornings. This September also had the second highest temperature range for the month with 21.7F. Glen Allen had the driest Sep. on record with only 1.56 inches of precipitation and was the driest month since February of 2011. The airport had 4.05 inches as the result of two thunderstorms on the 2nd and 6th each giving the airport more than one inch. This was the 43rd wettest September since 1887 at the Richmond International Airport. The Richmond International Airport's mean temperature was 70.3, and that was the 69th warmest September since 1881. On the 4th the airport set the only daily record for the month. The minimum of 75F set a record high minimum temperature for the date. The old record was 73F in 1898, 1953, 1993. Only five September days since 1897 have had a September minimum temperature higher than the 75F minimum on the 4th. The average minimum temperature was 60F that was the lowest since 2001 when 57.2F was recorded. The first five days of September were warm with the first five nights staying above 70F. This was the first September since 1996 that had five or more days the minimum temperature was above 70F in September. " - [ - - ] "

    Herndon - Randy sends these additional notes: " September was slightly below normal for temperature and precipitation. The temperatures ranged between a high of 91 and a low of 45. We averaged 0.9 degrees below normal for the month. On the precipitation side, the month was 1.85" below normal with only 3.29" measured. This is the ninth consecutive month of below average precipitation. We had thunderstorms on the four days. We have now had only 23.60" for the year, which is now about 12.0" below normal for the year. " - [ - - ]

    Portsmouth - " September 2012's total rainfall of 1.97" qualified the month as the 8TH DRIEST SEPTEMBER IN THE DATABASE TO 1976. The top 5 driest Septembers here include: 1) 0.25" 2007 2) 0.26" 1978 3) 0.32" 1986 4) 1.11" 1977 5) 1.54" 1994. September's average temperature (71.0) was 1.5 BELOW NORMAL. Precipitation was BELOW NORMAL by 3.22" or 38% of normal relative to normal Septembers for the period from 1976 to 2011. Frontal passages occurred on the 6th,8th,15th,18th,23rd, and 29th. SEPTEMBER STATION RECORD: 11th - TEMPERATURE Minimum Maximum 73 [previous 74 2006] " - [ - - ]

    North Carolina:

    Fayetteville - from NWS Raleigh RAH: " THE MINIMUM TEMPERATURE ON SEPTEMBER 1 WAS 75 DEGREES. THIS TIED THE RECORD HIGH MINIMUM TEMPERATURE OF 75 DEGREES SET IN 2000. " - [ -/+ - ]

    Greensboro - from NWS Raleigh RAH: " THE MINIMUM TEMPERATURE ON SEPTEMBER 1 WAS 74 DEGREES. THIS BROKE THE RECORD HIGH MINIMUM TEMPERATURE OF 72 DEGREES SET IN 1950. THE MINIMUM TEMPERATURE ON SEPTEMBER 4 WAS 72 DEGREES. THIS BROKE THE RECORD HIGH MINIMUM TEMPERATURE OF 71 DEGREES SET IN 1993. " - [ - + ]

    Raleigh - Bob sends these notes: " SEPTEMBER IS THE SECOND CONSECUTIVE MONTH OF BELOW NORMAL TEMPERATURES. IN ADDITION, RAINFALL WAS 4.02" ABOVE NORMAL. PRECIPITATION FOR THE YEAR IS 6.01" ABOVE NORMAL. NO SIGNIFICANT SEVERE WEATHER WAS OBSERVED DURING SEPTEMBER, HOWEVER A TORNADO WATCH WAS ISSUED ON THE 18TH. " - [ - + ]

    Nearby Locations:

    Tri-Cities - from NWS MRX, Morristown, TN: " The monthly-averaged temperature at Tri-Cities in September was 67.1 degrees which equaled the normal value. It tied with 1968, 1993 and 2000 as the 25th coolest September on record. The coolest September at Tri-Cities was in 1967 when the average temperature was 62.6 degrees. Tri-Cities received 6.01 inches of rain in September, which was 3.02 inches above normal. It tied with 2004 as the 4th wettest September on record. Measurable precipitation occurred on 8 days and just 6 of those days had more than one-quarter of an inch of precipitation. The heaviest precipitation fell on the 18th when 2 inches of rain was reported, which also broke the previous record of 0.55 inches set in 1991. An additional 1.13 inches of rain was reported on the previous day. The wettest September of the 74 years of observations taken at Tri-Cities was in 1972 when 7.09 inches of precipitation were 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 Weather Headlines visit the National Weather Service Homepage
    or conduct a Google.com Search

    http://www.weather.gov
     

    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:

      
    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,  Coast Guard Air Station 36-15-47N 076 10-58W 11M
    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@yahoo.com