CXUS51 KLWX 020434 CLMIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1234 AM EDT THU MAY 02 2024 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF APRIL 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 93 04/06/2010 04/17/2002 LOW 17 04/01/1969 HIGHEST 91 04/29 85 6 88 LOWEST 34 04/04 25 9 30 04/07 04/23 AVG. MAXIMUM 69.7 66.8 2.9 72.7 AVG. MINIMUM 48.4 43.2 5.2 45.6 MEAN 59.0 55.0 4.0 59.1 DAYS MAX >= 90 1 0.4 0.6 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 3.7 -3.7 2 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 7.41 2014 MINIMUM 0.33 1985 TOTALS 1.74 3.47 -1.73 3.30 DAILY AVG. 0.06 0.12 -0.06 0.11 DAYS >= .01 10 11.0 -1.0 8 DAYS >= .10 6 6.3 -0.3 5 DAYS >= .50 1 2.0 -1.0 2 DAYS >= 1.00 0 0.8 -0.8 2 GREATEST 24 HR. TOTAL 0.89 04/02 TO 04/03 1.43 STORM TOTAL 0.66 1.41 (MM/DD(HH)) SNOWFALL (INCHES) RECORDS TOTAL 4.0 1990 TOTALS T 0.1 -0.1 0.0 SINCE 7/1 11.7 21.0 -9.3 MM DAYS >= TRACE 1 0.1 0.9 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 0 DEGREE DAYS HEATING TOTAL 215 320 -105 213 SINCE 7/1 3643 4477 -834 MM COOLING TOTAL 44 20 24 44 SINCE 1/1 47 22 25 MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 8.0 HIGHEST WIND SPEED/DIRECTION 35/290 HIGHEST GUST SPEED/DIRECTION 53/290 SKY COVER AVERAGE SKY COVER 0.63 AVERAGE RH (PERCENT) 60 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 6 LIGHT RAIN 16 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 1 FOG 10 FOG W/VIS <= 1/4 MILE 1 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$