885 CDUS41 KLWX 010529 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 129 AM EDT TUE SEP 01 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 31 2020... CLIMATE NORMAL PERIOD: 1981 TO 2010 CLIMATE RECORD PERIOD: 1960 TO 2020 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 75 11:34 AM 98 1991 85 -10 86 MINIMUM 64 5:42 AM 43 1976 62 2 64 AVERAGE 70 73 -3 75 PRECIPITATION (IN) YESTERDAY 0.55 3.21 1975 0.10 0.45 0.00 MONTH TO DATE 7.64 3.53 4.11 4.79 SINCE JUN 1 17.70 11.18 6.52 9.96 SINCE JAN 1 34.22 28.00 6.22 29.84 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 T 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 5 15 -10 9 SINCE JUL 1 0 0 0 0 COOLING YESTERDAY 5 8 -3 10 MONTH TO DATE 401 324 77 356 SINCE JUN 1 1175 924 251 1056 SINCE JAN 1 1252 1016 236 1235 ................................................................... WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (130) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (120) AVERAGE WIND SPEED 3.5 SKY COVER AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 96 7:00 PM LOWEST 73 10:00 AM AVERAGE 85 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 84 98 1962 1980 MINIMUM TEMPERATURE (F) 62 49 1970 1976 SUNRISE AND SUNSET SEPTEMBER 1 2020.....SUNRISE 6:39 AM EDT SUNSET 7:39 PM EDT SEPTEMBER 2 2020.....SUNRISE 6:40 AM EDT SUNSET 7:38 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$