766 CDUS41 KLWX 070521 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 121 AM EDT MON SEP 07 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 6 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 83 2:51 PM 98 1983 83 0 79 MINIMUM 55 5:18 AM 45 1972 60 -5 60 1976 AVERAGE 69 72 -3 70 PRECIPITATION (IN) YESTERDAY 0.00 5.11 2008 0.11 -0.11 0.00 MONTH TO DATE 0.28 0.70 -0.42 0.32 SINCE SEP 1 0.28 0.70 -0.42 0.32 SINCE JAN 1 34.50 28.70 5.80 30.16 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 SEP 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 SEP 1 0 0 0 0 SINCE JUL 1 0 2 -2 0 COOLING YESTERDAY 4 7 -3 5 MONTH TO DATE 57 46 11 64 SINCE SEP 1 57 46 11 64 SINCE JAN 1 1309 1062 247 1299 ................................................................... WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (180) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (190) AVERAGE WIND SPEED 4.0 SKY COVER AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 97 6:00 AM LOWEST 41 2:00 PM AVERAGE 69 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 83 95 1983 1985 MINIMUM TEMPERATURE (F) 60 41 1976 SUNRISE AND SUNSET SEPTEMBER 7 2020.....SUNRISE 6:44 AM EDT SUNSET 7:30 PM EDT SEPTEMBER 8 2020.....SUNRISE 6:45 AM EDT SUNSET 7:28 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$