Climatological Report (Monthly)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
223 CXUS51 KLWX 011241 CLMIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 841 AM EDT THU AUG 01 2024 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF JULY 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 105 07/22/2011 LOW 41 07/01/1988 HIGHEST 101 07/16 96 5 98 LOWEST 58 07/02 52 6 61 AVG. MAXIMUM 91.6 87.6 4.0 91.2 AVG. MINIMUM 70.1 66.8 3.3 69.0 MEAN 80.8 77.2 3.6 80.1 DAYS MAX >= 90 18 12.5 5.5 21 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.0 0.0 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 11.21 2018 MINIMUM 0.94 1983 TOTALS 2.66 4.15 -1.49 5.09 DAILY AVG. 0.09 0.13 -0.04 0.16 DAYS >= .01 9 11.0 -2.0 14 DAYS >= .10 7 6.7 0.3 9 DAYS >= .50 2 2.7 -0.7 5 DAYS >= 1.00 0 1.3 -1.3 0 GREATEST 24 HR. TOTAL 0.68 07/12 TO 07/12 0.96 07/04 TO 07/04 07/12 TO 07/12 STORM TOTAL 0.68 0.96 (MM/DD(HH)) SNOWFALL (INCHES) RECORDS TOTAL MM MM TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 0.0 0.0 MM DAYS >= TRACE 0 0.0 0.0 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 0 DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 0 0 MM COOLING TOTAL 499 378 121 473 SINCE 1/1 1036 722 314 MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 5.7 HIGHEST WIND SPEED/DIRECTION 30/290 HIGHEST GUST SPEED/DIRECTION 43/290 SKY COVER AVERAGE SKY COVER 0.61 AVERAGE RH (PERCENT) 66 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 10 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 4 LIGHT RAIN 11 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 14 FOG W/VIS <= 1/4 MILE 0 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$