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

http://www.genserva.com/acon

SUMMARY OF CLIMATOLOGICAL DATA 



MAY 2014

...TEMPERATURE AVERAGES ABOVE NORMAL AT ALL STATIONS...

...RAINFALL AVERAGE SLIGHTLY ABOVE NORMAL FOR VIRGINIA AND SOUTH CAROLINA
AND SLIGHTLY BELOW NORMAL FOR NORTH CAROLINA...


  • Historical Database of Tornadoes - 1980-2012 - from Kevin Shaw of ACON DC/MD/DE   "I got this email from my friend Henry S down in TN (Retired NWS forecaster) ...pretty neat historical database of tornadoes! Check it out!" It includes a link to an interactive map showing all tornadoes which occurred across the U.S. from 1980 through 2012. http://storymaps.esri.com/stories/2014/tornadoes/#


  • 2014 AMERICAN WEATHER CONFERENCE - from Kevin Shaw, ACON DC/MD/DE   "Read all about 2014's conference at the link below. I have attended these in the past and they are always quite excellent. Hope some of you can make it!" Please visit: http://conference.americanwx.com/


  • NWS AKQ MONTHLY RAINFALL ANALYSIS (Virginia)      Don't forget these new products for Virginia from NWS Wakefield compiled from ASOS...COOP...RAWS REPORTS | Monthly Rainfall Analysis - http://www.weather.gov/akq/MONTHLY_RAINFALL_ANALYSIS -


  • 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 - MAY 2014
    State
    Maximum Temperature
    Minimum
    Temperature
    Warmest
    Average
    Temperature
    Coldest
    Average
    Temperature
    Maximum
    Precipitation
    Minimum
    Precipitation
    Virginia
    95°
    Norfolk (FHC)
    Portsmouth
    37°
    Blacksburg
    71.7°
    Norfolk (FHC)
    63.0°
    Blacksburg
    7.38"
    Portsmouth
    2.38"
    Roanoke
    North Carolina
    94°
    Fayetteville
    Lumberton
    36°
    Asheville
    74.1°
    Wilmington
    64.5°
    Asheville
    5.92"
    Whiteville
    1.42"
    Cape Hatteras
    South Carolina
    98°
    Columbia
    42°
    Anderson
    76.1°
    Charleston
    70.2°
    Anderson
    6.31"
    Orangeburg
    1.49"
    Charleston


    ( 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]
    STATION 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 76.0 50.1 63.0 3.7 88 13 37 17 0 0 0 0 73% 35 300 4 4.3 5 0 0 0 4 LWX 2400
    CHT 78.0 55.4 66.7 3.5 93.1 13 41.4 19 2 0 0 0 71% 16 200,160,250 12,15,16 0.3 360 2 1 0 1 0 LWX 2400
    CHO 77.9 54.7 66.3 3.1 91 13 39 19 1 0 0 0 47 340 28 4.5 4 0 0 0 3 LWX 2400
    DAN 80.6 56.0 68.3 1.9 90 13 45 17,19 1 0 0 0 61% 46 260 27 5.2 4 0 0 0 2 RNK 2400
    DCA 78.0 58.9 68.5 2.5 92 13,27 49 19 2 0 0 0 61% 49 270 16 7.3 5 0 0 0 0 LWX 2400
    IAD 75.4 53.0 64.2 1.0 90 13 39 19 1 0 0 0 67% 44 290 4 5.9 7 0 0 0 1 LWX 2400
    GAV 79.94 57.35 68.65 0.21 94 13 43 19 4 0 0 0 68% 40 20 22 4 1 0 0 0 AKQ 2400
    HAM                                             AKQ 2400
    HDV 76.0 54.2 65.1 0.7 90 13 41 19 1 0 0 0 72% 18 230 10 230 6 0 0 0 0 LWX 2400
    LYH 78.1 53.2 65.7 2.6 91 13 41 17 1 0 0 0 69% 38 290 27 4.0 5 0 0 0 2 RNK 2400
    NPN 79.5 58.7 68.8 1.9 93.9 13 46.3 19 4 0 0 0 27 270 10 3.0 70 3 0 0 0 0 AKQ 2400
    FHC 80.32 63.08 71.7 5.1 95.1 13 53.9 6 6 0 0 0 67% 33 200 16 1.1 200 2 0 0 0 2 AKQ 2400
    NOR 78.2 59.5 68.8 1.0 92 13 49 19 4 0 0 0           2 0 0 0 0 AKQ 2400
    ORF 78.4 60.8 69.6 3.0 92 13,28 52 19,20 4 0 0 0 66% 37 190 16 8.3 0 0 0 0 2 AKQ 2400
    POR 80.7 60.9 70.8 3.0 95 13 49 19 7 0 0 0 70% 28 230,230 1,3 4.8 276 4 1 0 0 1 AKQ 2400
    CTR 79.7 55.5 67.0 1.6 94 13 40.1 19 5 0 0 0 75% 18 140 15,16 0.1 214 2 0 0 0 0 AKQ 2400
    MEC 79.12 56.83 68.32 92 13 42 19 1 0 0 0 53% 3 0 0 0 0 AKQ 2400
    RIC 81.1 58.8 70.0 3.6 94 13 47 19 7 0 0 0 62% 49 220 9 6.3 5 0 0 0 2 AKQ 2400
    ROA 78.7 56.2 67.4 2.8 91 12 43 19 1 0 0 0 61% 51 290 13 6.4 5 0 0 0 0 RNK 2400
    WAL 75.9 57.8 66.9 4.2 90 27 48 19 1 0 0 0 44 240 10 9 5 0 0 0 4 AKQ 2400
    WOO 73.1 55.1 64.1 1.4 88 14 43 5 0 0 0 0 0 0 0 0 5 LWX 800
    WSH 75.4 54.9 65.1 1.54 88.8 13 43.7 5 0 0 0 0 72% 19 70 4 0.5 70 7 0 0 0 0 LWX 2400
    Averages 78.10 56.71 67.38 2.42 91.66 44.40 2.52 0.00 0.00 0.00 66.7% 35.5 4.4 3.8 0.1 0.0 0.0 1.3
    STATION 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
    STATION 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 77.2 51.9 64.5 1.4 88 5 36 17 0 0 0 0 68% 36 340 4 5.6 10 0 0 0 10 GSP 2400
    MRH 77.7 64.2 71.0 2.2 87 22 50 20 0 0 0 0 41 220 27 10.4 0 0 0 0 1 MHX 2400
    CLT 82.0 57.3 69.6 2.2 90 29 43 17,19 1 0 0 0 63% 38 300 23 5.3 4 1 0 0 1 GSP 2400
    ECG 79.4 60.2 69.8 3.0 92 28 47 19 3 0 0 0 69% 41 330 23 8.3 0 0 0 0 2 AKQ 2400
    FAY 85.2 61.8 73.5 2.9 94 28 47 19 11 0 0 0 61% 33 150 15 7.5 3 0 0 0 1 RAH 2400
    GSO 80.8 58.1 69.5 2.7 90 13 43 17 1 0 2 0 63% 41 260 9 7.0 3 0 0 0 0 RAH 2400
    HSE 77.4 65.0 71.2 4.1 85 22 48 20 0 0 0 0 70% 40 260,190 1,15 10.1 0 0 0 0 0 MHX 2400
    HKY 80.9 56.5 68.7 2.4 89 5 42 17 0 0 0 0 33 280 9 4.0 5 0 0 0 4 GSP 2400
    LBT 84.9 58.6 71.7 1.9 94 23 45 19 8 0 0 0 68% 38 340 16 5.5 4 0 0 0 2 ILM 2400
    EWN 83.9 62.9 73.4 3.9 93 9,28 48 20 8 0 0 0 66% 31 170 15 6.3 2 0 0 0 3 MHX 2400
    RDU 81.4 58.3 69.8 1.8 92 13 45 19 4 0 0 0 65% 41 280 27 5.7 2 0 0 0 0 RAH 2400
    RAL 81.2 58.2 69.7 1.7 92 12 43 16,18 2 0 2 0 24 27 2 0 0 0 0 RAH 2400
    WHI 84.6 62.0 73.3 4.2 91.5 13 49.1 19 10 0 0 0 64% 20 110 15 2.4 206 5 0 0 0 0 ILM 2400
    ILM 83.8 64.4 74.1 3.7 92 23,28 50 20 6 0 0 0 66% 35 180 16 8.2 5 0 0 0 1 ILM 2400
    Averages 81.46 59.96 70.70 2.72 90.68 45.44 3.86 0.00 0.29 0.00 65.8% 35.1 6.6 3.2 0.1 0.0 0.0 1.8
    STATION 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
    STATION 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 82.5 57.8 70.2 1.6 91 5,23 42 17 3 0 0 0 38 200 14 5.9 8 0 0 0 3 GSP 2400
    CAE 86.4 62.2 74.3 2.6 98 8,23 47 17 14 0 0 0 66% 35 190,330 12,28 6.4 9 1 0 0 2 CAE 2400
    CRE 80.5 63.8 72.2 2.5 93 23 50 20 2 0 0 0 73% 32 220 27 8.4 1 0 0 0 5 ILM 2400
    CHS 86.6 65.5 76.1 3.6 97 23 51 17 12 0 0 0 37 170 15 7.5 4 0 0 0 0 CHS 2400
    FLO 85.7 61.4 73.6 2.5 94 22,23 48 20 14 0 0 0 66% 34 270 23 6.7 3 0 0 0 4 ILM 2400
    GSP 82.3 58.4 70.4 1.7 91 5 43 17 5 0 0 0 67% 41 240 15 6.1 9 0 0 0 1 GSP 2400
    OGB 84.9 61.3 73.1 1.5 94 23 17 11 0 0 0 0   34 240 12 5.9 6 0 0 0 3 CAE 2400
    Averages 84.13 61.49 72.84 2.3 94.0 42.6 7.1 0.0 0.0 0.0 68.0% 35.9 6.7 5.7   0.0 0.0 2.6
    STATION 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
    STATION 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 79.6 52.1 65.9 2.4 91 13 38 2 1 0 0 0 45 260 21 4.3 5 0 0 0 7 MRX 2400
    DAV 65.1 45.2 49.1 79 14 29 5 0 0 4 0 PBX 2400
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    BCB 2.68 -1.65 1.97 15 1.97 15 7 1 14.83         0.0 34.4 RNK 2400
    CHT 5.93 1.38 1.75 16 3.37 15-16 15 2 22.41         0.0 46.3 30.307 19 29.675 1 30.010 LWX 2400
    CHO 4.86 0.88 2.45 15 3.99 15-16 8 2 18.27 30.320 19 29.690 1 LWX 2400
    DAN 4.48 0.60 2.66 15 2.67 15-16 6 2 18.56         0.0 13.4 30.310 19 29.710 8 RNK 2400
    DCA 4.96 0.97 2.25 16 2.65 30-1 11 1 22.29         0.0 30.5 30.310 19 29.690 1 LWX 2400
    IAD 6.34 1.79 1.97 16 3.88 15-16 13 2 16.94         0.0 52.8     29.690 1 LWX 2400
    GAV 4.74   1.63 16 2.80 15-16 11 2 21.96 0.5 (hail) 22 1 0 0.5 (hail) 17.7 30.310 19 29.730 1 30.030 AKQ 2400
    HAM                                         AKQ 2400
    HDV 6.54 1.64 2.04 15   14 2 25.88         0.0 48.6 30.300 19 29.680 1 AKQ 2400
    LYH 5.39 1.66 3.12 15 3.22 15-16 7 2 21.02         0.0 21.4 30.340 19 29.730 1 RNK 2400
    NPN 3.50 -0.71 1.94 16 1.94 16 8 1 21.22         0.0 14.8 30.290 19 29.720 4 AKQ 2400
    FHC 7.00 3.59 5.99 16 5.99 16 8 1 22.80         0.0 15.5 30.295 19 29.744 4 30.038 AKQ 2400
    NOR 4.24 0.17 3.28 16 3.28 16 7 1 20.84         0.0 14.8   AKQ 2400
    ORF 4.64 1.23 3.01 16 3.01 16 8 2 19.62         0.0 15.8 30.290 19 29.730 4 AKQ 2400
    POR 7.38 3.06 5.58 16 5.58 16 7 2 24.78 0.0 18.0 30.290 19 29.740 4 30.030 AKQ 2400
    CTR 4.21 0.20 1.52 16 2.74 15-16 11 2 19.38         0.0 12.3 30.280 19 29.680 1 29.989 AKQ 2400
    MEC 2.97 1.12 16 1.12 16 7 1 17.85         0.0 13.5 AKQ 2400
    RIC 2.44 -1.34 0.66 22 1.04 15-16 9 0 16.04         0.0 14.5 30.330 19 29.730 1 AKQ 2400
    ROA 2.38 -1.68 1.86 15 1.86 15 7 1 15.60         0.0 16.3 30.350 19 29.770 1 RNK 2400
    WAL 3.45 0.50 1.76 16 1.78 16 11 1 16.18         0.0 13.1 30.280 31 29.680 4 AKQ 2400
    WOO 4.58 0.23 2.63 15-16 12 1 15.14         0.0 46.2 30.380 19 29.960 1,2 LWX 800
    WSH 5.36 1.23 2.64 16 3.75 15,16 13 2 19.18         0.0 50.8 30.370 19 29.750 4 LWX 2400
    Averages 4.67 0.72 2.46 2.96 9.5 1.5 19.56 0.0 25.5 30.315 29.728 30.019
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    AVL 3.77 0.11 1.74 15 2.21 14-15 12 1 16.51         0.0 9.6 30.320 19 29.810 1 GSP 2400
    MRH 1.63 -2.30 0.75 16 0.75 16 7 0 14.46         0.0 T 30.380 20 29.820 6 MHX 2400
    CLT 4.05 0.87 2.11 15 2.11 18 6 2 22.79         0.0 9.3 30.310 19 29.800 5 GSP 2400
    ECG 2.33 -1.28 2.01 16 2.01 16 6 1 14.96         0.0 11.2 30.300 19 29.770 4 AKQ 2400
    FAY 4.11 0.87 3.52 15 3.63 15-16 5 1 18.45     29.740 1 RAH 2400
    GSO 2.61 -0.77 1.60 15 1.60 15 8 1 17.49         0.0 15.3 29.740 1 RAH 2400
    HSE 1.42 -2.15 0.70 1 0.70 1 6 0 22.79         0.0 5.7 30.290 19 29.810 2 MHX 2400
    HKY 3.52 -0.16 1.76 30 1.85 30-31 8 2 17.19 30.270 19 29.730 1 GSP 2400
    LBT 3.60 0.55 3.22 15 3.31 15-16 5 1 17.26 30.270 19 29.730 1 ILM 2400
    EWN 1.92 -2.23 0.90 11 0.90 11 6 0 17.88         0.0 14.0 30.310 20 29.820 16 MHX 2400
    RDU 4.02 0.75 3.38 15 3.56 15-16 6 1 19.27         0.0 5.8 29.740 1 RAH 2400
    RAL 5.21 1.94 3.11 14-15 3 2 21.96         0.0 5.8 30.180 18 29.760 1 RAH 2400
    WHI 5.92 1.38 2.54 15 3.63 15-16 6 3 20.98         0.0 2.1 30.308 2 29.806 16 30.053 ILM 2400
    ILM 2.49 -2.00 1.26 16 2.01 15-16 7 1 19.24         0.0 1.0 30.310 20 29.810 13 ILM 2400
    Averages 3.33 -0.32 1.96 2.24 6.5 1.1 18.66       0.0 7.3 30.295 29.778
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    AND 3.38 0.21 1.38 15 1.55 14-15 6 2 17.91 30.300 19 29.840 2 GSP 2400
    CAE 5.72 2.75 1.90 15 1.90 15 12 3 18.96           4.2 30.310 20 29.830 15 CAE 2400
    CRE 1.59 -1.82 0.52 15 0.91 15-16 7 0 13.59 30.310 20 29.820 16 ILM 2400
    CHS 1.49 -1.53 0.96 15 0.96 15 5 0 15.04         0 T     29.860 15 CHS 2400
    FLO 2.62 -0.64 2.31 15 2.51 15-16 7 1 17.36 30.310 20 29.820 15 ILM 2400
    GSP 4.43 0.67 1.74 30 1.86 14-15 9 2 19.81         0 7.2 30.290 19 29.810 15 GSP 2400
    OGB 6.31 3.09 3.25 15 3.25 15 9 3 18.83 30.310 20 29.830 15 CAE 2400
    Averages 3.65 0.39 1.72 1.85 7.9 1.6 17.36 0.00 0.0 0.0 0.0 3.8 30.305 29.830
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    STATION T T1 U U1 V V1 W X Y Z 1 2 3 4 5 6 6A 7 7A 8 CWA TIME RECORDED
    TRI 2.20 -1.60 0.77 15 0.77 15 8 0 12.00         0.0 13.0 30.280 19 29.810 5 MRX 2400
    DAV 8.12 2.11 16 15 3 24.82         0.0 165.2 PBX 2400
    STATION 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/Washington, D.C. - " THE MONTHLY AVERAGE TEMPERATURE AND PRECIPITATION IN WASHINGTON DC THIS MAY 2014 WERE BOTH SLIGHTLY ABOVE NORMAL. THIS MAY CONTINUED A TREND OF ABOVE AVERAGE TEMPERATURES FOR MAY...A STRING EXTENDING BACK TO 2010. MONTHLY PRECIPITATION WAS THE MOST OBSERVED FOR THE MONTH OF MAY SINCE 2009. PREVIOUS MAY MONTHS SINCE 2009 UNTIL THIS YEAR HAVE ALSO HAD BELOW NORMAL PRECIPITATION. A RECORD DAILY MAXIMUM RAINFALL OF 2.25 INCHES WAS OBSERVED ON THE 16TH...BREAKING THE OLD RECORD OF 1.91 INCHES SET IN 1983. THIS WAS ALSO THE MOST RAINFALL ON A SINGLE CALENDAR DAY IN MAY SINCE 2008 WHEN 2.63 INCHES FELL ON THE 11TH. " - [ + + ] - from NWS Sterling, VA

    Chantilly - from Russ Topping: " May temperatures and rain were above normal. The mean monthly temperature was 66.7° (+3.5°). The mean high temperature was 78.0° (+2.9°) and the mean low temperature was 55.4° (+4.2°). A record high maximum temperature was set on the 13th (93.1°) and a record high minimum temperature was set on the 15th (65.8°). May precipitation of 5.93” was above average (+1.38”). A new daily rainfall record was set on the 16th (1.75”). The 24 hr storm total for the 15-16th was 3.38”. *Please note, anemometer is currently partially obstructed from the North and East " - [ + + ]

    Dulles - from NWS Sterling (KLWX): " TEMPERATURES AT DULLES AIRPORT THIS MAY 2014 AVERAGED SLIGHTLY ABOVE NORMAL. PRECIPITATION WAS ALSO ABOVE NORMAL. THIS WAS THE FIRST MONTH IN 2014 TO FEATURE ABOVE NORMAL AVERAGE MONTHLY TEMPERATURE. THIS MAY CONTINUED A TREND OF ABOVE AVERAGE TEMPERATURES FOR MAY...A STRING EXTENDING BACK TO 2009. THE MONTHLY PRECIPITATION WAS THE MOST OBSERVED FOR THE MONTH OF MAY SINCE 2009 WHEN 10.26 INCHES OF PRECIPITATION WAS OBSERVED. A DAILY MAXIMUM RAINFALL OF 1.97 INCHES WAS SET ON THE 16TH...BREAKING THE OLD RECORD OF 1.62 INCHES SET IN 1983. THIS WAS ALSO THE MOST RAINFALL ON A SINGLE CALENDAR DAY IN MAY SINCE 2010 WHEN 2.40 INCHES FELL ON THE 23RD. THE TWO DAY TOTAL RAINFALL OF 3.88 INCHES THAT FELL ON 15TH AND 16TH WAS THE WETTEST TWO-DAY PERIOD IN MAY SINCE 2008 WHEN 4.51 INCHES OF RAIN FELL ON THE 11TH AND 12TH. " - [ + + ]

    Herndon - from member Randy Ashby: " May was slightly above normal for temperature and well above normal again for precipitation. The temperatures ranged between a high of 90 and a low of 41 and were 0.7 degrees above normal. On the precipitation side, the month was 1.64” above normal, with 6.54” measured. We had precipitation on 14 days during the month, including 3.90” on the 15-16th. We are now almost 7.8” above normal for precipitation for the year. " - [ + + ]

    Norfolk - from NWS Wakefield AKQ: " ...Above normal temperatures and above normal precipitation characterized Norfolk weather in May... The average temperature at Norfolk International Airport was 69.6 degrees, which was 3.0 degrees above normal. The average high temperature was 78.4 or 3.0 degrees below normal. The average low temperature was 60.8 degrees or 2.9 degrees above normal. The highest temperature was 92 degrees on the 13 th and 28th. The lowest temperature was 52 degrees on the 19th and 20th . There were 4 days with maximum temperatures above 90degrees, which is 3.0 days above normal. Precipitation came in at 4.64 inches, which is 1.23inches above normal. The greatest 24-hour total was 3.01 inches on the 16th. There were 8 days with measurable rainfall, which is 2.6 days below normal. There were 593.5 accumulated growing degree days (GDD), which was 77.5 GDD above the 1981-2010 normal of 516 GDD. The highest was on the 10th, at 27 GDD. For 2014, precipitation has reached 19.62inches, which is 2.60 inches above normal. The average temperature year-to-date is 50.6 degrees, which is 0.8 degrees below normal. A record daily maximum rainfall amount was set on May 16 at 3.01 inches. Meteorological Spring 2014 finished with near normal temperatures and above normal precipitation. The average temperature was 58.0 degrees, which was 0.1 degree below normal. Precipitation totaled 13.33 inches, which was 2.83 inches above normal. " - [ + + ]

    Portsmouth - from Bill Trotter: " MAY 2014 WAS THE 4TH WETTEST MAY MONTH IN THE DATABASE TO 1977: The top 5 wettest Mays include: 1) 9.49" 2012 2) 8.06" 1988 3) 7.76" 1978 4) 7.38" 2014 5) 7.21" 1979 MAY 2014 WAS THE 3RD WARMEST MAY MONTH IN THE DATABASE TO 1977: The top 5 warmest Mays include: 1) 73.4° 2004 2) 71.1° 2010 3) 70.8° 2014 4) 70.7° 2012 5) 70.6° 2000 May's average temperature of 70.8° was 3.0° ABOVE NORMAL. Precipitation (7.38") was ABOVE NORMAL by 3.06" or 171% of the May average during the period from 1976 to 2013. Rainfall for the year through May 31st was 24.78" (+6.22" or 134% of normal). To view the station monthly and year-to-date climatological summary (LCD) for this Portsmouth station, please click here. Frontal passages were noted on these dates: 2, 4, 11, 14, 16, 18, 23, 29, 30. STATION RECORDS: 1st - TEMP Max low 69° [prev 65° 1991], 8th - TEMP TIED Max 91° [2000], 9th - TEMP Max 92° [prev 89° 2009], 10th - TEMP Max 90° [prev 89° 2000], 10th - TEMP Max low 69° [prev 68° 2002], 12th - TEMP TIED Max 90° [2000], 13th - TEMP TIED Max 95° [2000], 15th - TEMP Max low 69º [prev 67° 1983], 16th - RAIN 5.58" [prev 1.44" 1983], 19th - TEMP Min 49° [prev 50° 2002], 27th - TEMP TIED Max 93° [1989], 28th - TEMP Max 92° [prev 91° 1991]. - [ + + ]

    Glen Allen - from Lowell Koontz: " The Hail storm on the 22nd was Glen Allen's most exciting weather event of May 2014. I was surprised how high the May's mean temperature departure was for the Richmond International Airport. But Glen Allen has but 5 years of data and four of the 5 were warmer than usual only last year was cooler. This is at least part of the explanation! May’s mean temperature was 68.7°F only + 0.2 °F departure. May was 0.58 inches above the average precipitation for Glen Allen when compared to the 5-year average. The maximum temperature for May was 94°F on the 13th and the minimum was 43°F on the 19th. The 94°F tied for the highest temperature ever observed at this station for May. The maximum wind gust of 40 mph on May 22nd was a new wind speed record for May. May averaged the clearest May on record, which in part explains the highest temperature range ever recorded for May. The 4.74 inches of precipitation for May was a +0.58 inch departure when compared to the average. May had 2.80 inches of rain in a local thunderstorm on May 16th and 17th in 15 hours, which set a new 24-hour record for May. This was the most rain to fall in 24-hours since Sept. 7th & 8th of 2011 when 3.19 inches was recorded a new 24-hour record for May. The link below is for data during the May 22nd thunderstorm. The hailstorm of May 22, 2014 started with rain at 1637 and ended by 1710 hours and the storm’s total precipitation was 0.77 inches. The maximum wind gust was 40 mph from the NNE at 1641 hours just before the hail started. A very short but very intense period of hail occurred between 1643 and 1647 hours. Hail size varied more than what I have observed from other storms. The size ranged from 0.3 inches to 0.7 inches or pea to dime size but the average diameter was 0.4 inches. The ground had enough hail on it that it was crunchy when walking on it and was enough to actually measure at 0.5 inches at least. If the grass was shorter the yard would have appeared white with the hail covering. The link to the pictures is http://www.glenallenweather.com/historylinks/2014/may/HailMay22,2014.pdf.

    " - [ + + ]

    Richmond - from contributor Lowell Koontz (GAV): " The Airport maximum of 94°F on May 13th tied the previous record set in 2000 and 1956. Only 8 years have a higher low maximum for May than this year’s low maximum of 68°F. Only 4 years have a higher minimum for the month of May than the 47°F on May 19th. Only 9 years had a higher mean for the month than May’s mean of 69.5°F. The lowest daily mean temperature this month was 60.0°F on May 5th. Only 4 years have had a higher low mean for May since 1897.

    " - [ + - ]

    Richmond - from NWS Wakefield AKQ: " ...Above normal temperatures and below normal precipitation characterized Richmond weather in May... The average temperature at Richmond International Airport was 70.0 degrees, which was 3.6 degrees above normal. The average high temperature was 81.1 or 3.2 degrees above normal. The average low temperature was 58.8 degrees or 3.8 degrees above normal. The highest temperature was 94 degrees on the 13 th. The lowest temperature was 47 degrees on the 19th. There were 7 days with maximum temperatures above 90 degrees, which is 5.0 days above normal. May 2014 ranks as the 12th warmest May on record, including the 9th warmest minimum temperature average on record. Precipitation came in at 2.44 inches, which is 1.34 inches below normal. The greatest 24-hour total was 1.04 inches on the 15th and 16th. There were 9 days with measurable rainfall, which is 1.8 days below normal. There were 599 accumulated growing degree days (GDD), which was 85.5 GDD above the 1981-2010 normal of 513.5 GDD. The highest was on the 13th, at 26.5 GDD. For 2014, precipitation has reached 16.04 inches, which is 0.85inches below normal. The average temperature year-to-date is 49.6 degrees, which is 0.8 degrees below normal. A record high temperature was tied on May 13 with a temperature of 94 degrees. Meteorological Spring 2014 finished with slightly above normal temperatures and below normal precipitation. The average temperature was 58.0 degrees, which was 0.3 degrees above normal. Precipitation totaled 9.73 inches, which was 1.36 inches below normal. " - [ + - ]

    North Carolina:

    Fayetteville - from NWS Raleigh KRAH: " RECORD: MAY 15TH: RECORD RAINFALL OF 3.52 INCHES....BREAKING THE OLD RECORD OF 1.83 INCHES SET IN 1930. " - [ + + ]

    Greensboro - from NWS Raleigh (RAH): " RECORD: MAY 14TH - RECORD HIGH MINIMUM TEMPERTURE OF 68....BREAKING THE OLD RECORD OF 66 SET IN 1991. " - [ + - ]

    Raleigh - from NWS Raleigh KRAH: " RECORD: MAY 15TH: RECORD RAINFALL OF 3.38 INCHES...BREAKING THE OLD RECORD OF 2.19 INCHES SET IN 1934. " - [ + + ]

    Raleigh - from contributor Bob Woodson (RAL): " BREAKING THE TREND, THE AVERAGE DAILY TEMPERATURE FOR MAY WAS ACTUALLY ABOVE NORMAL BY 1.7 DEGREES. RAINFALL FOR MAY WAS 1.94” ABOVE NORMAL THE FIRST 90 DEGREE READING WAS RECORDED ON MAY 11TH HOWEVER PRECIPITATION OCCURRED ONLY ON THREE (3) DAYS . THIS REGION WAS UNDER A SEVERE THUNDERSTORM WATCH ON TWO (2) DAYS ALONG WITH ONE SEVERE THUNDERSTORM WARNING. " - [ + + ]



    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 2013-2014 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:
    [ includes current stations, inactive stations, and closed stations since database inception ]

      
    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' | STATION CLOSED         		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 kesseld@verizon.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 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'. 1993 randy_ashby@msn.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 ending 12/13
         WHI   North Whiteville, NC Christopher Crawley 12/10 34.413744N / 078.751908W ccawley.kk4csr@gmail.com
    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 CHS   Charleston, SC NWS Charleston Air Force Base 32-53-56N 080-02-26W 13M
    NPN     Newport News, VA 7N Gary Leonard -  6/91 mikey0781@cox.net 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