Information by Column Number
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2007 TEMP. TIME TEMP. TIME TEMP. TEMP. MEAN SOIL SKY SKY PRECIP MAX.1HR MAX.5M FROZ. SNOW ON START END 2007 START END WIND MAX. TIME MAX. MIN. MAX. MIN. AVE. BAR. BAR.& MAP FEAT. HP.LP. FRONT FRONT FRONT 2007 April-2007
APRIL MAX. MAX. MIN. MIN. RANGE MEAN CHANGE TEMP. AM PM MELTED PRECIP. PRECIP. PRECIP. GROUND TIME TIME APRIL TIME TIME RUN GUST GUST RH RH BAR. BAR. BAR. CHANGE PREC. FEAT. LOC. TRACK DIRCT. INTEN. PASSED APRIL REMARKS FOR THE MONTH
Apr-01 60 15:32 48 6:40 12 54.0 0.5 49 2 2 T T T 1942 1948 Apr-01 2038 2050 39.8 17 109 74 55 30.21 29.97 30.09 -0.08 30.02 21 SOUTH AVE. Apr-01 CLOUDY ALL DAY WITH HEAVY ALTOSTRATUS AROUND NOON
Apr-02 81 16:16 50 7:04 31 65.5 11.5 49 0 0 0.02 0.02 0.01 0255 0500 Apr-02 52.7 24 1501 98 23 30.02 29.89 29.96 -0.14 29.95 21, 9 NCC STAT. SOUTH AVE. 0930 Apr-02 THIS WAS A BEAUTIFUL SPRING DAY WITH CUMULUS CLOUDS FOR A LITTLE WHILE AFTER NOON TIME
Apr-03 81 13:39 52 23:57 29 66.5 1.0 50 0 0 Apr-03 58.0 20 1841 80 26 30.10 29.94 30.02 0.07 9 NCC EAST Apr-03 ALSO A WEAK LOW PRESSURE OFF DE-BEAUTIFUL SPRING DAY BUT VERY DRY NOW
Apr-04 59 18:04 44 23:47 15 51.5 -15.0 50 2 2 0.84 0.82 0.19 0323 0325 Apr-04 0340 0720 61.2 37 2306 98 37 29.97 29.64 29.81 -0.22 29.96 11 WEST STRONG 1915 Apr-04 STRONG THUNDERSTORM BETWEEN 0400-0500 AND STRONG COLD FRONT PASSED AT 1950-3RD PD. OF PRECIP. 0815-0850
Apr-05 46 15:48 36 23:37 10 41.0 -10.5 50 0 1 Apr-05 134.3 32 1343 64 32 29.95 29.79 29.87 0.06 8, 9 MA NE Apr-05 HIGH PRESSURE LOCATED IN SK- COLD WINDY DAY FOR APRIL MORE LIKE MARCH-VIRGA SEEN FROM STRATOCUMULUS CLOUDS
Apr-06 48 16:15 32 6:48 16 40.0 -1.0 48 2 2 Apr-06 78.1 26 1051 69 29 29.94 29.76 29.85 -0.02 8 ME NE Apr-06 HIGH PRESSURE LOCATED IN SK - LOW PRESSURE TO FORM OFF DE TONIGHT AND GIVE 1-2 INS. OF SNOW TO DC AREA-OUR LAST APRIL SNOWSTORM WAS
Apr-07 41 16:38 30 22:52 11 35.5 -4.5 47 2 2 0.08 0.04 0.01 0.9 0.0 0150 0610 Apr-07 92.7 33 1809 95 30 29.95 29.74 29.85 -0.01 29.78 8 VAC NE Apr-07 VERY LIGHT SNOW FROM 0150-0210 THEN LIGHT SNOW UNTIL 0600-ALL SNOW MELTED BY SUNSET ALSO SET NEW 27 YR. REC. SNOWFALL FOR DATE
Apr-08 44 15:28 26 6:41 18 35.0 -0.5 46 2 1 Apr-08 98.5 29 1029 65 31 30.10 29.94 30.02 0.18 8 NB NE Apr-08 AND A HIGH PRESSURE IS LOCATED IN MB-STILL WINDY AND COLD FOR EASTER-TIED 27 YR. REC. LOW MIN. FOR DATE
Apr-09 48 18:15 29 6:24 19 38.5 3.5 45 2 2 Apr-09 53.8 23 0948 76 38 30.13 30.03 30.08 0.06 9 AR EAST Apr-09 TIED 27 YR. REC. LOW MIN. TEMP. FOR DATE
Apr-10 53 18:11 30 5:24 23 41.5 3.0 45 2 1 Apr-10 32.5 18 1320 85 30 30.16 30.07 30.12 0.04 9 OH EAST Apr-10 THE FIRST TIME AT NATIONAL THAT THEY HAD 5 CONSECUTIVE DAYS WITH HIGH TEMPS. LESS THAN 50 DEGREES IN APRIL SINCE 1898-REF. BOB RYAN
Apr-11 56 13:51 33 4:30 23 44.5 3.0 45 2 2 0.23 0.13 0.03 1530 1610 Apr-11 1905 2400 65.0 22 1543 93 41 30.16 29.86 30.01 -0.11 30.04 9, 8 NJC NE Apr-11 ALSO A LOW PRESSURE IN MO TRACKING NE
Apr-12 62 14:48 43 0:30 19 52.5 8.0 45 2 1 0.67 0.19 0.08 0001 0630 Apr-12 1524 1615 55.9 26 1857 100 55 29.87 29.62 29.75 -0.26 29.85 8 VA NE Apr-12 COMPLEX FEATURES-LOW PRESSURE IN MI-OCCLUDED FRONT WITH TRIPLE POINT PASSING NEAR NO VA AND UPPER LEVEL TROUGH ALSO PASSED AREA
Apr-13 56 15:38 41 23:59 15 48.5 -4.0 46 2 1 Apr-13 121.7 36 1350 64 34 30.11 29.85 29.98 0.23 9R IA-KY NORTH Apr-13 VERY WINDY DAY-MAJOR EAST COAST STORM FORECAST FOR 15TH
Apr-14 57 13:54 38 3:14 19 47.5 -1.0 46 2 2 0.16 0.06 0.01 1150 1200 Apr-14 1320 1340 37.3 13 1008 96 40 30.14 29.85 30.00 0.02 30.10 8 AR NE Apr-14 3RD PD. OF RAIN 1500-1710, 4TH PD. OF PRECIP. 1900-2400-RAIN VERY SLOW COMING INTO NO VA
Apr-15 47 14:57 42 23:37 5 44.5 -3.0 47 2 2 2.42 0.36 0.07 0001 1915 Apr-15 2010 2200 77.2 34 2323 100 77 29.85 29.17 29.51 -0.48 29.85 8 NC NE Apr-15 THUNDER AROUND 1510-ALSO 2.42 INS. OF RAIN TODAY WHICH WAS NEAR A 27 YR. PRECIP. REC. FOR DATE-27 YR. REC. LOW MAX. TEMP. FOR DATE AND TIED
Apr-16 45 11:47 41 10:00 4 43.0 -1.5 46 2 2 0.02 0.01 0.01 0155 0205 Apr-16 0920 0950 238.5 53 1500 87 55 29.48 29.18 29.33 -0.18 29.19 8 NJ NE Apr-16 53 MPH WIND RECORDED ON NORTH DAVIS ANEMOMETER, 46 MPH WIND REC. ON NIMBUS AND SOUTH DAVIS REC. ONLY 41 MPH - SPRINKLES 1410-1900
Apr-17 54 14:30 44 6:11 10 49.0 6.0 45 2 2 T T T 0900 0910 Apr-17 147.3 31 0007 70 53 29.74 29.47 29.61 0.27 29.64 8 MA NE Apr-17 NEW WIND RUN RECORD FOR DATE-OLD REC. WAS 220.0 MILES -REC. SINCE MAY 2002
Apr-18 55 14:22 40 6:07 15 47.5 -1.5 45 1 2 Apr-18 38.3 14 0044 81 53 29.90 29.71 29.81 0.20 9 ON EAST Apr-18 STILL WINDY BUT MUCH LESS TODAY THAN YESTERDAY
Apr-19 57 18:49 45 5:53 12 51.0 3.5 47 2 2 T T T 1310 1340 Apr-19 1430 1510 15.7 12 1350 85 57 30.03 29.87 29.95 0.15 29.95 8 KY EAST Apr-19 TODAY IS THE 6TH DAY OF CLOUDY SKIES AND STILL COOL TEMPS. WITH SPRINKLES
Apr-20 72 18:17 43 4:15 29 57.5 6.5 47 0 0 Apr-20 29.5 13 1249 92 22 30.14 30.02 30.08 0.13 9 OK EAST Apr-20 HEAVY DEW-BEAUTIFUL SPRING DAY-PRETTIEST APRIL DAY SINCE APRIL 2
Apr-21 77 18:25 45 2:33 32 61.0 3.5 48 0 0 Apr-21 27.3 16 1207 73 17 30.23 30.13 30.18 0.10 9R MI-WV EAST Apr-21 VERY LOW RELATIVE HUMIDITY AND A GREAT SPRING DAY
Apr-22 82 15:39 47 6:30 35 64.5 3.5 49 0 0 Apr-22 22.9 12 1200 78 17 30.23 30.14 30.19 0.01 9 VA SE Apr-22 VERY LOW RELATIVE HUMIDITY - NIMBUS REL. HUMIDITY MIN. WAS 17.5%-SOME CIRRUS DURING PM - BEAUTIFUL SPRING DAY
Apr-23 86 15:47 56 7:13 30 71.0 6.5 52 0 0 Apr-23 47.0 17 1440 65 22 30.16 29.93 30.05 -0.14 9 SCC EAST Apr-23 FEW PM CLOUDS-WARMEST DAY SINCE AUG. 29, 2006 WHEN IT WAS 90 DEGREES F
Apr-24 82 17:36 64 4:22 18 73.0 2.0 53 2 2 Apr-24 44.6 22 1232 68 32 30.02 29.91 29.97 -0.08 11 NW WEAK 1945 Apr-24 VERY WEAK COLD FRONT TO BECOME STATIONARY ON NO VA-SUN THROUGH CIRROSTRATUS IN AM-27 YR. REC. HIGH MIN. TEMP. FOR DATE-OLD REC. 56
Apr-25 78 16:48 57 7:02 21 67.5 -5.5 54 1 2 T T T 2200 2215 Apr-25 41.1 14 1348 74 35 30.06 29.84 29.95 -0.02 9, 21 PA NORTH SOUTH WEAK Apr-25 SUN THROUGH CIRROSTRATUS DURING MUCH OF DAY-27 YR. REC. HIGH MIN. TEMP. FOR DATE-OLD REC. WAS 55
Apr-26 61 14:13 52 6:09 9 56.5 -11.0 54 2 2 T T T 1030 1115 Apr-26 2220 2050 56.5 19 1116 81 64 30.16 29.99 30.08 0.13 30.15 9R QU-NY EAST Apr-26 ALSO A LOW PRESSURE IN MISSOURI
Apr-27 73 16:46 50 2:47 23 61.5 5.0 54 2 1 0.30 0.14 0.07 0001 0620 Apr-27 0745 0940 15.2 10 0021 97 65 30.00 29.78 29.89 -0.18 29.99 21, 11 SOUTH AVE. 1400 Apr-27 THUNDERSTORM WITH THUNDER AT 0603 AND 0611-COLD FRONT PASSED AT 2400
Apr-28 70 14:01 57 7:09 13 63.5 2.0 55 2 2 T T .T 1810 1830 Apr-28 2110 2140 31.9 18 1136 98 45 29.89 29.79 29.84 -0.05 29.81 8, 23 NC EAST WEST WEAK 2400 Apr-28 LOW PRESSURE ON COLD FRONT THAT PASSED LOCATED IN NC-UPPER LEVEL DISTURBANCE PASSED OUR AREA IN THE PM
Apr-29 76 17:57 48 5:55 28 62.0 -1.5 55 0 1 T T T 1408 1415 Apr-29 61.2 29 1114 90 31 29.96 29.86 29.91 0.07 9 AR NE Apr-29 BREEZY AND PLEASANT SPRING DAY
Apr-30 84 13:14 53 2:50 31 68.5 6.5 55 0 1 Apr-30 58.9 24 1814 82 31 29.96 29.80 29.88 -0.03 9, 11 WV EAST NW WEAK 1900 Apr-30 THE MAX.TEMP. TODAY WAS 84 °F, A NEW 27 YEAR HIGH MAX. TEMP. REC. FOR THE DATE; THE OLD REC. WAS 83 °F IN 1985.-- BREEZY & WARM AFTERNOON
TOTAL 1891.0 46885 1316.0 26800 575.0 1603.5 15.0 1467.0 40.0 40.0 4.74 1.77 0.48 0.9 0.0 MAX. TEMPS MIN. TEMPS TOT. 1934.6 694 2478 1177 900.62 894.54 897.58 -0.29 418.28 EXTREMES DATES DATE EXTENSION OF LENGTHY DAILY REMARKS
NUM 30 30 30 30 30 30 30 30 30 30 9 9 9 1 1 >=85 1 <=65 30 NUM. 30 30 30 30 30 30 30 30 30 14 WX. FEAT. MAX. TEMP. 4-23 Apr - 06 4/9/2000 WHEN WE HAD ONE INCH-SUN THROUGH THICK CIRRUS MOST OF DAY
AVE. 63.03 15:50 43.87 9:08 19.17 53.45 0.50 48.90 1.33 1.33 0.53 0.20 0.05 0.00 0.00 >=80 6 <=60 29 AVE. 64.5 23.13 82.60 39.23 30.02 29.82 29.92 -0.01 29.88 LOW PR.= 12 MIN. TEMP. 4-08 Apr - 12 THUNDERSTORM AT 0500
MAX. 86 18:49 64 23:59 35 73.0 11.5 CLEAR 9 6 24 Hr. 0.82 0.19 0.9 0 >=75 9 <=55 26 MAX. 238.5 53 100 77 30.23 30.14 30.19 0.27 30.15 HIGH PR.= 13 MAX. MEAN 4-24 Apr - 15 27 YR. REC. LOW TEMP. RANGE FOR DATE
MIN. 41 11:47 26 0:30 4 35.0 -15.0 PT.CLO. 2 8 2.57 >= 1.00 >= 2.00 Inches Thunder >=70 12 <=50 23 MIN. 15.2 10 64 17 29.48 29.17 29.33 -0.48 29.19 ELONG HP.= 3 MIN. MEAN 4-08
dAY=>90 0 -- <=32° 5 -- -- -- CLO. 19 16 2.42 1 1 Days 2 >=65 12 <=45 18 MEDI 55 22 1285 82 35 30.03 29.86 29.95 0.00 29.95 COLD FRO.= 4 MAX. PREC. 4-15
DATE 4-23 DATE 4-08 DATE OF 4-24 DATE OF 4-08 DATE 4-15 >=60 15 <=40 9 DATE 4-16 1500 DATE 4-21 4-15 WARM FRO.= 4 MAX. GUST 4-16
MAX. MIN. Warmest Coldest MAX. >=55 21 <=35 6 MAX. MAX. STAT. FRO.= 0 MAX. BAR. 4-21
TEMP. TEMP. DAY DAY PREC. >=50 23 <=30 4 WIND BAR. 4-22 ALL HPS.= 16 MIN. BAR. 4-15