Climatological Report (Monthly)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
000 CXUS51 KLWX 041906 CLMIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 306 PM EDT MON SEP 04 2023 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 104 08/20/1983 LOW 38 08/29/1982 HIGHEST 97 08/25 95 2 97 LOWEST 54 08/19 50 4 57 AVG. MAXIMUM 88.1 86.3 1.8 88.4 AVG. MINIMUM 66.4 65.2 1.2 66.7 MEAN 77.2 75.7 1.5 77.5 DAYS MAX >= 90 12 9.3 2.7 15 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 10.71 1984 MINIMUM 0.44 1998 TOTALS 1.85 3.53 -1.68 2.30 DAILY AVG. 0.06 0.11 -0.05 0.07 DAYS >= .01 8 9.3 -1.3 12 DAYS >= .10 4 5.6 -1.6 4 DAYS >= .50 1 2.2 -1.2 2 DAYS >= 1.00 0 1.1 -1.1 0 GREATEST 24 HR. TOTAL 0.93 08/07 TO 08/07 0.99 STORM TOTAL 0.93 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 1 -1 0 SINCE 7/1 0 0 0 MM COOLING TOTAL 386 334 52 396 SINCE 1/1 1115 1056 59 MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 6.4 HIGHEST WIND SPEED/DIRECTION 28/300 HIGHEST GUST SPEED/DIRECTION 41/150 SKY COVER AVERAGE SKY COVER 0.58 AVERAGE RH (PERCENT) 66 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 6 MIXED PRECIP 0 HEAVY RAIN 3 RAIN 2 LIGHT RAIN 10 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 11 FOG W/VIS <= 1/4 MILE 0 HAZE 5 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && AUGUST AVERAGED SLIGHTLY WARMER THAN NORMAL. THE DRY WEATHER OF RECENT MONTHS CONTINUED, WITH WELL BELOW NORMAL PRECIPITATION OBSERVED. AFTER ANOTHER DRY MONTH, YEAR-TO-DATE RAINFALL NOW STANDS AT 10.37 INCHES BELOW NORMAL. $$ DHOF