649 CDUS41 KLWX 180534 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 134 AM EDT THU AUG 18 2022 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 17 2022... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2022 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 84 3:30 PM 101 1988 87 -3 86 MINIMUM 58 1:05 AM 44 1979 65 -7 70 AVERAGE 71 76 -5 78 PRECIPITATION (IN) YESTERDAY 0.05 3.32 1997 0.11 -0.06 0.56 MONTH TO DATE 2.03 1.95 0.08 2.76 SINCE JUN 1 10.01 10.40 -0.39 8.84 SINCE JAN 1 27.23 27.64 -0.41 22.42 SNOWFALL (IN) YESTERDAY 0.0 MM MM 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE JUN 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 0 13 -13 6 SINCE JUL 1 0 0 0 0 COOLING YESTERDAY 6 11 -5 13 MONTH TO DATE 224 197 27 211 SINCE JUN 1 877 813 64 925 SINCE JAN 1 1006 919 87 1034 ................................................................... WIND (MPH) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (340) HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320) AVERAGE WIND SPEED 5.2 SKY COVER AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 90 6:00 AM LOWEST 37 6:00 PM AVERAGE 64 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 86 98 2009 MINIMUM TEMPERATURE (F) 65 45 1981 SUNRISE AND SUNSET AUGUST 18 2022........SUNRISE 6:26 AM EDT SUNSET 8:00 PM EDT AUGUST 19 2022........SUNRISE 6:27 AM EDT SUNSET 7:59 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$