091 CDUS41 KLWX 090534 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 134 AM EDT SUN AUG 09 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 8 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 85 4:48 PM 101 2007 87 -2 92 MINIMUM 70 11:59 PM 49 1989 65 5 64 AVERAGE 78 76 2 78 PRECIPITATION (IN) YESTERDAY 0.00 0.74 2005 0.12 -0.12 0.00 MONTH TO DATE 2.97 0.99 1.98 0.39 SINCE JUN 1 13.03 8.64 4.39 5.56 SINCE JAN 1 29.55 25.46 4.09 25.44 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 13 11 2 13 MONTH TO DATE 113 89 24 108 SINCE JUN 1 887 689 198 808 SINCE JAN 1 964 781 183 987 ................................................................... WIND (MPH) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (30) HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION NE (50) AVERAGE WIND SPEED 3.9 SKY COVER AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 10:00 PM LOWEST 61 6:00 PM AVERAGE 77 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 87 97 1980 2001 MINIMUM TEMPERATURE (F) 65 47 1989 SUNRISE AND SUNSET AUGUST 9 2020........SUNRISE 6:18 AM EDT SUNSET 8:11 PM EDT AUGUST 10 2020........SUNRISE 6:19 AM EDT SUNSET 8:10 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$