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

http://www.genserva.com/acon

SUMMARY OF CLIMATOLOGICAL DATA 


APRIL 2016


...TEMPERATURES...

NEAR NORMAL AVERAGE TEMPERATURES

...RAINFALL...

BELOW NORMAL AVERAGE RAINFALL



  • THE FOUR-INCH RAIN GAUGE -- HOW IS IT CALIBRATED?   from CoCoRaHS: "An observer from Alabama writes: 'I've always tried to figure out how rain gauges are calibrated and I read somewhere that the principle is how much water falls on one square inch of ground. In that case, a gauge with a one inch square opening would need to be six inches tall to measure six inches of rain. Trying to reconcile this knowledge with my new gauge, I figured that a 4" opening represents 12.56 square inches (A=pi*r*r), and that the tube should be 12.5" tall to measure an inch of water. However, from the bottom of the tube to the inch mark it isn't that tall. Could you help me understand the principle? Great question! Here is our answer: Rainfall is a DEPTH measurement and not a "volume" measurement. In other words, it's not "an inch per square inch" but it's an inch for any area in your immediate vicinity that the rain happens to land on. In the case of your new rain gauge, the "inch" of rain is falling into a cylinder that has an inside diameter of slightly less than 4" is then being funneled into a calibrated cylinder of a much smaller diameter (just greater than 1.2 inside diameter). The area of the opening of the inner cylinder is exactly 1/10th the area of the funnel and outer cylinder. This means, the inner tube will magnify the depth of rain by a factor of exactly 10. What this means is that 1.00" of rain will fill that inner cylinder to a depth of 10.0". It is then scaled accordingly." (Editor's note: By the way, have you joined the CoCoRaHS network? It's a really good way to archive your data, provide useful precip reports to the NWS, as well as to the media, and local authorities!)

  • NEW NATIONAL WEATHER SERVICE STORM SURGE MAPS A LIFE-SAVING TOOL   New maps from the National Weather Service to warn of storm surges from hurricanes will give local and state emergency management coordinators a new tool to help local communities avoid harm and may help save lives from the deadliest impact of tropical storms. More details with a click here: http://www.dailypress.com/news/dp-nws-sci-hurricanes-forecast-20160401-story.html

  • SCIENTISTS SCURRY TO SOUTHEAST TO STUDY STORMS, CHASE TORNADOES   Dixie also has a tornado alley! Details in this link to CNN.com: http://edition.cnn.com/2016/03/30/weather/southeast-tornado-experiment-vortex-se/index.html

  • CLIMATE EXPERTS FIELD QUESTIONS FROM THE CROWD   from Kevin Shaw, ACON DC/MD/DE: "I watched most of this Severe Storms and Tornado conference. Excellent presentations. All the presentations are broken up on this website - so you can pick and choose which one you would like to see and hear. Dr. Louis Uccellini, NWS Director, made an excellent presentation (And he goes into the big blizzard of Jan 2016 in good detail) that on this website is divided up in 6 parts. I heartily recommend you check some or all of these presentations out. They will remain on WGN's website in the future so no rush to get to them but do try to watch at least a few of them. The entire conference lasted most of the day today." More details with a click here: http://wgntv.com/category/news/fermilab/

  • NWS AKQ Monthly Rainfall Analysis      From NWS Wakefield compiled from ASOS...COOP...RAWS REPORTS | Monthly Rainfall Analysis - http://www.weather.gov/akq/MONTHLY_RAINFALL_ANALYSIS -


  • TRACK APRIL 2016 NWS STORM REPORTS FOR YOUR STATE   The Storm Prediction Center archives reports of severe weather - tornado, wind, hail - to the National Weather Service. To view these reports, start here with a click to April 1, 2016. While visiting, you will learn how to navigate the daily reports using forward and backward navigation arrows ( < > ) or by replacing the date in your browser's URL line with a date you wish to view. For starters, click here for April 2016 reports: http://www.spc.noaa.gov/climo/reports/160401_rpts.html




  •    DROUGHT MONITOR       Information on drought can be found at NOAA's Drought Information Center (http://droughtmonitor.unl.edu/)

  • 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 - APRIL 2016

    State
    Maximum Temperature
    Minimum
    Temperature
    Warmest
    Average
    Temperature
    Coldest
    Average
    Temperature
    Maximum
    Precipitation
    Minimum
    Precipitation
    Virginia
    89
    Glen Allen
    19
    Blacksburg
    58.3
    Norfolk (FHC)
    Portsmouth
    53.0
    Blacksburg
    4.19"
    Newport News
    1.13"
    Roanoke
    North Carolina
    91
    Fayetteville
    27
    Asheville
    Raleigh (RAL)
    62.8
    Wilmington
    56.8
    Asheville
    4.04"
    Elizabeth City
    1.62"
    Beaufort
    South Carolina
    91
    Columbia
    Charleston
    Orangeburg
    31
    Greenville-Spartanburg
    66.0
    Charleston
    62.0
    Greenville-Spartanburg
    5.34"
    Florence
    0.99"
    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]
    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 66.5 39.5 53.0 2.3 83 18 19 10 0 0 8 0 61% 45 310 2 5.7 1 1 0 0 2 LWX 2400
    CHT 67.6 43.6 55.6 1.2 86.1 26 25 6 0 0 3 0 62% 24 158 11 0.8 180 0 0 0 0 0 LWX 2400
    CHO 68.8 44.9 56.9 1.6 88 18 26 6 0 0 3 0 41 280 2 6.8 4 0 0 0 0 LWX 2400
    DAN 71.2 44.9 58.0 -0.2 87 18,19 24 10 0 0 4 0 60% 43 290 9 7.0 4 0 0 0 0 RNK 2400
    DCA 67.0 46.7 56.9 0.1 86 26 30 5 0 0 3 0 56% 58 310 2 10.1 0 0 0 0 0 LWX 2400
    IAD 65.9 42.3 54.1 -0.3 84 26 24 6 0 0 5 0 58% 65 310 2 8.7 0 0 0 0 0 LWX 2400
    GAV 69.64 45.32 57.48 -1.4 89 26 25 10 0 0 3 0 62% 36 203 4 4 1 0 0 0 AKQ 2400
    HAM 66.0 43.0 57.0 -1.0 85 26 30 6 0 0 2 0 45 360 3 12.0 1 0 0 0 0 AKQ 2400
    HDV 65.6 43.1 54.3 -1.6 84 26 26 6 0 0 3 0 63% 22 270 1 45 1 0 0 1 0 LWX 2400
    LYH 68.2 42.8 55.5 0.1 85 19,26 22 10 0 0 4 0 59% 38 300,190 3,11 6.4 3 0 0 0 1 RNK 2400
    NPN 67.3 46.6 56.8 -2.1 85.9 26 28.7 6 0 0 1 0 44 270 3 4.4 203 4 0 0 0 0 AKQ 2400
    FHC 67.7 48.9 58.3 0.1 87 26 33 6 0 0 0 0 63% 38 270 9 8.0 203 2 1 0 0 0 AKQ 2400
    NOR 66.0 47.0 56.5 -1.4 84 26 29 6 0 0 1 0 40 270 9 2 0 0 0 0 AKQ 2400
    ORF 66.5 48.9 57.7 -0.5 86 26 32 6 0 0 1 0 63% 46 340 5 11.6 2 0 0 0 0 AKQ 2400
    POR 68.6 48.0 58.3 -1.0 87 26 30 6 0 0 1 0 69% 46 270 9 8.0 45 2 1 0 0 0 AKQ 2400
    CTR 70.6 44.1 57.4 0.2 88.6 18 24.4 6 0 0 6 0 63% 28 315 3 0.5 239 0 0 0 1 0 AKQ 2400
    MEC 69.63 46.30 58.16 88 19,20 26 10 0 0 1 0 42% 22 5 8.5 5 0 0 0 0 AKQ 2400
    RIC 68.6 44.6 56.6 -1.6 87 19,26 27 6,10 0 0 3 0 61% 50 220 7 9.6 3 0 0 0 0 AKQ 2400
    ROA 70.3 45.8 58.0 1.3 88 18 25 10 0 0 3 0 53% 57 330 3 8.5 1 0 0 0 0 RNK 2400
    SVC 65.2 43.8 54.5 -1.1 84 18 28 6 0 0 3 0 0 0 0 0 3 LWX 2400
    WAL 63.0 43.8 53.4 -0.5 85 26 26 6 0 0 3 0 52 310,290 2,3 11.8 3 0 0 0 1 AKQ 2400
    WSH 65.2 43.8 54.5 -1.16 86.5 18 27.2 10 0 0 4 0 61% 28 180 1 1.1 68 1 0 0 0 0 LWX 2400
    Averages 67.50 44.90 56.32 -0.33 86.1 26.7 0.0 0.0 3.0 0.0 60% 43.4 7.2 2.0 0.2 0.0 0.1 0.3
    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 69.4 44.2 56.8 1.6 84 28 27 10 0 0 2 0 56% 48 340 9 7.4 3 0 0 0 0 GSP 2400
    MRH 69.2 52.2 60.7 -0.3 87 19 35 6 0 0 0 0 48 290 9 11.4 1 0 0 0 0 MHX 2400
    CLT 73.5 50.0 61.8 2.4 88 19 34 6,10 0 0 0 0 55% 37 180,210 7,9 7.7 2 0 0 0 0 GSP 2400
    ECG 68.1 47.6 57.9 -0.8 86 19 28 6 0 0 2 0 67% 51 280 9 11.6 3 0 0 0 1 AKQ 2400
    FAY 74.6 50.5 62.6 -0.1 91 19 31 6,10 1 0 2 0 58% 45 230 7 9.1 4 0 0 0 1 RAH 2400
    GSO 71.8 48.7 60.3 1.5 87 19 29 10 0 0 2 0 55% 47 300 9 8.6 3 0 0 0 1 RAH 2400
    HSE 66.8 53.2 60.0 0.5 78 19 40 5 0 0 0 0 71% 47 300 3 10.6 1 0 0 0 0 MHX 2400
    HKY 71.5 47.4 59.5 1.0 86 18,29 30 10 0 0 2 0 40 290 2 6.1 5 0 0 0 2 GSP 2400
    LBT 75.0 49.9 62.4 0.7 90 19 29 6,10 1 0 2 0 63% 42 300 9 7.3 3 0 0 0 1 ILM 2400
    EWN 72.3 49.2 60.7 -1.1 88 19,27 34 6,10 0 0 0 0 63% 41 280 9 8.7 6 0 0 0 1 MHX 2400
    RDU 72.2 49.1 60.6 0.4 88 19 29 6,10 0 0 2 0 59% 43 290 9 8.0 4 0 0 0 0 RAH 2400
    RAL 72.6 48.1 60.4 0.2 89 19 27 6 0 0 2 0 29 9 2 0 0 0 0 RAH 2400
    ILM 73.9 51.6 62.8 -0.1 89 19 35 6,10 0 0 0 0 62% 43 260 9 9.4 6 0 0 0 1 ILM 2400
    Averages 71.61 49.36 60.50 0.45 87.00 31.4 0.2 0.0 1.2 0.0 61% 43.2 8.8 3.3 0.0 0.0 0.0 0.6
    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
    AND 75.0 50.4 62.7 2.4 88 29 35 10 0 0 0 0 39 250 2 7.2 6 0 0 0 1 GSP 2400
    CAE 78.1 53.6 65.8 2.4 91 29 38 10 2 0 0 0 56% 51 240 1 7.6 4 0 0 0 2 CAE 2400
    CRE 72.5 53.0 62.8 1.2 88 19 36 10 0 0 0 0 66% 36 250 2 9.1 3 0 0 0 1 ILM 2400
    CHS 77.3 54.7 66.0 1.2 91 29 41 5 1 0 0 0 37 290,320,190 2,9,28 9.0 1 0 0 0 0 CHS 2400
    CXM 72.0 59.6 65.8 0.4 84 29 45 10 0 0 0 0 34 50 13 8.5 CHS 2400
    FLO 75.4 52.2 63.8 0.5 89 19 33 6,10 0 0 0 0 62% 46 270 2 8.3 3 0 0 0 2 ILM 2400
    GSP 73.7 50.3 62.0 1.5 87 19,29 31 10 0 0 1 0 56% 36 280 7 7.5 5 0 0 0 2 GSP 2400
    OGB 76.9 53.6 65.2 1.8 91 29 38 10 1 0 0 0 40 270 2 7.2 3 0 0 0 3 CAE 2400
    Averages 75.11 53.43 64.26 1.4 88.6 26.4 0.5 0.0 0.1 0.0 60% 39.9 8.1 3.6 0.0 0.0 0.0 1.6
    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 71.5 43.1 57.3 2.1 85 20 24 10 0 0 6 0 46 250 7 5.8 4 0 0 0 2 MRX 2400
    DAV 55.9 32.3 44.1 73 19 5 11 0 2 13 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 1.75 -1.73 0.41 22 0.41 11 11 0 11.46 0.6 9 4 0 0.6 25.6 RNK 2400
    CHT 1.97 -1.50 0.92 7 0.92 7 13 0 11.79 0.0 33.7 30.463 17 29.366 2 29.952 LWX 2400
    CHO 3.37 0.01 1.00 28 1.84 27-28 9 1 10.98 29.390 2 LWX 2400
    DAN 2.80 -0.66 0.87 27 1.42 27-28 8 0 11.98 0 0.0 11.1 30.450 17 29.470 2 29.960 RNK 2400
    DCA 2.05 -1.01 0.70 7 0.70 7 12 0 9.68 T 3,5,9 3 0 T 32.3 29.390 2 LWX 2400
    IAD 1.88 -1.59 0.94 7 0.94 6-7 12 0 11.78 T 3,5,9 3 0 T 34.3 29.390 2 LWX 2400
    GAV 2.45 0.57 22 0.57 22 11 0 11.93 T 9 1 0 T 19.9 30.490 17 29.430 2 29.960 AKQ 2400
    HAM 2.30 -0.76 0.56 2 0.58 1-2 10 0 12.96 T 5 1 0 T 4.0 30.460 10 29.470 2 29.965 AKQ 2400
    HDV 2.11 -1.45 1.04 7 12 1 12.55 T 3,5,9 3 0 T 34.2 30.450 17 29.360 2 29.905 AKQ 2400
    LYH 2.12 -1.19 0.78 7 0.78 6-7 8 0 12.77 0.0 15.6 30.470 17 29.480 2 29.975 RNK 2400
    NPN 4.19 0.25 1.04 22 1.04 22 10 1 17.97 0.0 9.9 30.430 17 29.440 2 29.935 AKQ 2400
    FHC 2.94 -0.47 0.62 22 0.98 27-28 10 0 16.10 T 5,9 2 0 T 5.0 30.431 17 29.472 2 29.952 AKQ 2400
    NOR 2.71 -1.13 0.81 2 0.81 2 10 0 17.98 T 5,9 2 0 T 5.0 AKQ 2400
    ORF 2.78 -0.63 0.70 2 0.70 2 9 0 17.11 T 5,9 2 0 T 5.0 30.440 17 29.470 2 29.955 AKQ 2400
    POR 3.22 -0.29 0.77 2 0.88 27-28 10 0 17.68 T 9 1 0 T 4.6 30.429 10 29.456 2 29.943 AKQ 2400
    CTR 2.93 -1.03 0.87 28 0.87 28 12 0 13.49 0.0 17.6 30.420 17 29.390 2 29.905 AKQ 2400
    MEC 2.53 0.47 23 0.56 1-2 11 0 13.29 T 1 0 T 20.1 AKQ 2400
    RIC 2.17 -1.10 0.60 22 0.60 22 11 0 10.84 0.0 12.0 30.480 17 29.440 2 29.960 AKQ 2400
    ROA 1.13 -2.24 0.26 28 0.26 28 8 0 11.61 T 3.9 2 0 T 23.0 30.480 17 29.500 7 29.990 RNK 2400
    SVC 2.87 -0.67 1.13 7 1.13 7 12 1 15.11 T 9 1 0 T 36.3 LWX 2400
    WAL 1.68 -1.39 0.41 12 0.42 4-5 12 0 10.73 0.6 5 2 0 0.6 12.3 30.440 17 29.410 2 29.925 AKQ 2400
    WSH 2.11 -1.94 0.86 28 0.86 21 15 0 11.25 T 3,5,8,9 4 0 T 27.7 30.500 17 29.440 2 29.970 LWX 2400
    Averages 2.46 -1.03 0.74 0.82 10.7 0.2 13.23 0.1 0.1 18.5 30.456 29.431 29.950
    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 2.50 -0.83 1.07 30 1.07 30 7 1 13.04 0.0 13.9 30.440 17 29.650 7 30.045 GSP 2400
    MRH 1.62 -1.93 0.63 7 0.71 6-7 7 0 16.33 0.0 T 30.450 10 29.540 2 29.995 MHX 2400
    CLT 2.03 -1.01 0.78 30 0.78 29-30 7 0 8.81 0.0 3.3 30.450 17 29.590 2 30.020 GSP 2400
    ECG 4.04 0.90 1.12 22 1.76 22-23 8 1 13.85 0.0 1.8 30.450 10 29.510 2 29.980 AKQ 2400
    FAY 3.53 0.71 1.37 28 1.37 28 6 1 12.38 29.520 2 RAH 2400
    GSO 2.20 -1.37 0.62 27 1.06 27-28 10 0 10.30 0.0 4.5 29.520 2 RAH 2400
    HSE 2.31 -1.33 0.92 1 0.92 1 7 0 21.39 0.0 T 29.500 2 MHX 2400
    HKY 2.71 -0.97 0.96 30 0.96 30 9 0 10.92 30.420 17 29.550 7 29.985 GSP 2400
    LBT 3.17 0.35 1.32 22 1.32 22 5 1 12.63 30.440 10 29.540 2 29.990 ILM 2400
    EWN 1.68 -1.49 0.42 12 0.42 12 9 0 16.03 0.0 T 30.460 10 29.540 2 30.000 MHX 2400
    RDU 2.98 0.06 1.02 22 1.02 21-22 7 1 13.43 0.0 1.4 29.520 2 RAH 2400
    RAL 3.43 0.51 0.86 11-12 7 0 15.49 0.0 1.9 30.360 15 29.820 26 30.090 RAH 2400
    ILM 1.91 -0.91 0.80 22 0.86 22-23 9 0 16.81 0.0 T 30.440 10 29.540 2 29.990 ILM 2400
    Averages 2.62 -0.56 0.92 1.01 7.5 0.4 13.95 0.0 2.7 30.434 29.565 30.011
    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 2.09 -1.03 0.78 30 0.78 30 7 0 9.96 30.410 17 29.680 7 30.045 GSP 2400
    CAE 2.80 0.18 1.49 1 1.49 1 6 1 11.31 0.0 T 30.110 25 29.790 27 29.950 CAE 2400
    CRE 0.99 -1.97 0.43 7 0.43 7 5 0 10.53 30.440 10 29.570 2 30.005 ILM 2400
    CHS 2.61 -0.30 1.47 28 1.47 28 8 1 14.09 0.0 T 30.420 10 29.650 2 30.035 CHS 2400
    CXM 1.23 -1.30 0.45 1 0.45 1 6 0 12.75 29.640 2 CHS 2400
    FLO 5.34 2.72 2.56 22 2.56 22 7 2 14.43 30.440 10 29.570 2 30.005 ILM 2400
    GSP 2.32 -1.04 0.91 30 0.91 30 7 0 12.27 0.0 2.6 30.420 17 29.630 7 30.025 GSP 2400
    OGB 1.26 -1.59 0.58 22 0.80 1-2 6 0 8.43 30.430 10 29.670 2 30.050 CAE 2400
    Averages 2.33 -0.54 1.08 1.11 6.5 0.50 11.72 0.0 0.9 30.381 29.650 30.016
    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 3.59 0.26 0.59 1 0.95 27-28 9 0 11.93 0.0 18.4 30.410 17 29.570 7 29.990 MRX 2400
    DAV 4.32 0.93 29 14 0 16.57 9.6 10 8 4 21.2 123.8 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. - "WASHINGTON DC...REAGAN NATIONAL AIRPORT... THE MONTHLY AVERAGE TEMPERATURE WAS NEAR NORMAL. MONTHLY PRECIPITATION WAS BELOW NORMAL. THIS WAS THE COOLEST APRIL SINCE 2007...AND THE DRIEST SINCE 2012. REAGAN NATIONAL AIRPORT HAD ITS FIRST 80-DEGREE DAY OF 2016 ON THE 1ST. A RECORD DAILY HIGH MINIMUM TEMPERATURE OF 64 DEGREES WAS SET ON THE 1ST...BREAKING THE OLD RECORD OF 62 SET IN 1998. A RECORD DAILY HIGH MINIMUM TEMPERATURE OF 65 DEGREES WAS SET ON THE 26TH...TYING THE RECORD PREVIOUSLY SET IN 1881. " - [ + - ] - from NWS Sterling, VA

    Chantilly - "April temperatures were slightly above average and precipitation was below average. The mean monthly temperature was 55.6 (+1.2). The mean high temperature was 67.6 (+0.9) and the mean low temperature was 43.6 (+1.5). A record high temperature was tied on the 1st (85). A record high minimum temperature was set on the 1st (64) and 22nd (64). April precipitation of 1.97 was below average (-1.50). No snow was observed. Season snowfall for 2015-16 was 33.7. *Please note, anemometer is currently partially obstructed from the North and East " - [ + - ] - from member Russ Toping

    Seven Corners/Fairfax County - from member John Iekel: " APRIL 2016 WAS A HARD MONTH FOR GARDENERS. SEVERE FREEZES, THEN VERY DRY WITH ONLY 0.56 DURING A THREE-WEEK PERIOD. " - [ - - ]

    Dulles - from NWS Sterling (KLWX): "DULLES INTERNATIONAL AIRPORT... THE MONTHLY AVERAGE TEMPERATURE WAS NEAR NORMAL. MONTHLY PRECIPITATION WAS WELL BELOW NORMAL. THIS WAS THE DRIEST APRIL SINCE 2012. A RECORD DAILY HIGH MINIMUM TEMPERATURE OF 64 DEGREES WAS SET ON THE 1ST...BREAKING THE OLD RECORD OF 57 SET IN 2006. A RECORD DAILY LOW TEMPERATURE OF 24 DEGREES WAS SET ON THE 6TH...TYING THE OLD RECORD PREVIOUSLY SET IN 1966. A RECORD DAILY HIGH MINIMUM TEMPERATURE OF 62 DEGREES WAS SET ON THE 22ND...TYING THE RECORD PREVIOUSLY SET IN 1977. " - [ - - ]

    Herndon - from member Randy Ashby: " April was below normal for temperature and precipitation. The temperatures ranged between a high of 84 and a low of 26 and was 1.6 degrees below normal. On the precipitation side, the month was 1.45 below normal, with 2.11 measured. We had a trace of snow three times during the month. The total snow for the year was 34.2. " - [ - - ]

    Norfolk - from NWS Wakefield (AKQ): " View the NWS AKQ Wakefield April 2016 Climate Summary with a click here " - [ - - ]

    Portsmouth - from Bill Trotter: " The month's average temperature of 58.3 was 1.0 BELOW NORMAL. Precipitation (3.22") was BELOW NORMAL by 0.29" or 92% of the April average rainfall during the period from 1977 to 2015. At month's end, rainfall for the year totaled 17.68" (+3.20" or 122% of normal). Frontal passages: 3rd, 5th, 7th, 8th, 9th, 12th, 19th, 23rd, and 28th. Frost was noted on the 6th. . STATION RECORDS: 1st - TEMPERATURE Max low 68 [previously 66 1998], 2nd - TEMPERATURE Minimum 30 [previously 31 1982], 7th - WIND GUST 39mph [previously 38mph in 1989], and 9th - WIND GUST 46mph [previously 38mph 1998]. To view the station monthly and year-to-date climatological summary (LCD) for this Portsmouth station, please click here. " - [ - - ]

    Glen Allen - from Lowell Koontz: " April was cooler than average by -1.4F. The monthly mean temperature for April was 57.5F the third lowest on record for April. The average minimum temperature was only 0.4F from being a new low record for April. April was the third driest at Glen Allen with a total of 2.45 inches, a departure of -0.93 inches based on the average of the past 7 years. Measurable precipitation occurred on 11 days and none was intense as the most rain to fall in an hour was 0.33 inches and 0.14 inches in five minutes. The maximum precipitation to occur in 24 hours was only 0.57 inches on the 22nd; the previous record was 0.65 in 2010. The cloud cover and average relative humidity were both near average for April but the 16% relative humidity on the 18th was the second lowest on record which added to the Virginia fire threat and the Shenandoah National Park fire. The high temperature for April was only 88.5F on the 26th. This April had five 80 degree days. The maximum daily temperature range was only 43.5F on the 18th which set a new record for Glen Allen; the previous record was 39F in 2009. April 28th had only a 6.4F temperature range which tied for the lowest range for April. The lowest minimum was 25.2F recorded on the 10th which is now the lowest temperature on record at Glen Allen for April; the previous record was 26.4F on April 3, 2013. The small difference in these two records and the very warm March made a big difference in plants. Damage occurred on the young growth on nandina bushes, roses, hydrangeas, tea olive shrubs and even slight damage to bloom of spice bush viburnum, and lilacs. April had three days with freezing temperatures and six days with some frost. The coldest day (lowest daily mean temperature) was 40.8F occurring on the 10th and was the second lowest on record for April. The warmest day (highest daily mean temperature) was 76.5F occurring on the 26th. The maximum wind gust was 36 mph from the SSW that occurred on the 4th at 1601 preceding a strong cold front. April was also the second windiest on record with a wind run of 2595.9 miles. There was a short snow flurry that occurred April 9th from 10:58 a.m. to 11:00 a.m. " - [ - - ]

    Richmond - from contributor Lowell Koontz (GAV): " The Airport tied two daily records one for lowest minimum temperature on April 6th of 27F that also occurred in 1975. It was also 27F on the 10th but the record for that date was 23F. Only 11 Aprils since 1897 have had a lower minimum temperature than the 27F of this April. The second tie was for the high daily mean temperature for April 1st which was 71.5F that tied with 1979 for the warmest first day of April. The highest maximum temperature in April was 87F that occurred on the 19th and 26th. The Richmond International Airports April mean temperature was 56.6 F which was a departure of negative 1.6F and was the 49th coolest April in the past 119 years. The daily temperature range on the 18th was 44F which wasnt a record for the date but only 12 Aprils since 1897 have had a higher temperature range recorded in April. The April precipitation total was 2.17 inches which was a departure of -1.10 inches. Only 29 Aprils in the past 129 years have been drier. The Airport had 0.28 inches less precipitation than Glen Allen during April. The Airport reported no snow in April. The last measurable snow for Richmond in April was one inch on April 7, 2007. " - [ - - ]

    Richmond - from NWS Wakefield (AKQ): " View the NWS AKQ Wakefield April 2016 Climate Summary for Richmond with a click here " - [ - - ]

    North Carolina:

    Fayetteville - from NWS Raleigh RAH: " THE MINIMUM TEMPERATURE APRIL 6TH AT FAYETTEVILLE REGIONAL AIRPORT WAS 31 DEGREES. THIS TIED THE RECORD MINIMUM SET IN 1920. " - [ - + ]

    Greensboro - from NWS Raleigh RAH: " THE MINIMUM TEMPERATURE APRIL 1ST AT PIEDMONT TRIAD INTERNATIONAL AIRPORT WAS 63 DEGREES. THIS BROKE THE OLD RECORD HIGH MINIMUM OF 59 DEGREES SET IN 1998. " - [ + - ]

    Raleigh - from NWS Raleigh RAH: " THE MAX MINIMUM TEMPERATURE APRIL 1ST AT RALEIGH DURHAM INTERNATIONAL AIRPORT WAS 67 DEGREES. THIS BROKE THE OLD RECORD HIGH OF 64 DEGREES SET IN 1998. " - [ + + ]

    Raleigh - from member Bob Woodson (RAL): " THE AVERAGE DAILY TEMPERATURE FOR APRIL WAS NEAR NORMAL (+0.2 DEGS) WHILE PRECIPITATION WAS 0.51 INCHES ABOVE NORMAL. THE LAST FREEZE OF THE SEASON OCCURRED ON APRIL 10TH WITH A LOW OF 28 DEGREES. SEVERE WEATHER OCCURRED ON ARIL 27TH WITH STRAIGHT LINE WIND DAMAGE AND HAIL. " - [ + + ]

    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 2015-2016 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:
    [ 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 SVC    Seven Corner, Fairfax County, VA John Iekel Latitude 38.857404 Longitude -77.151696
    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 STATION CLOSED 08/2014
       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 kesseld1@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 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
      CXM    Downtown Charleston, SC NWS 32.77 N 79.93 W
    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