678 CDUS41 KLWX 090522 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 122 AM EDT MON AUG 09 2021 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 8 2021... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2021 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 93 3:10 PM 101 2007 87 6 85 MINIMUM 60 3:11 AM 49 1989 66 -6 70 AVERAGE 77 77 0 78 PRECIPITATION (IN) YESTERDAY 0.00 0.74 2005 0.12 -0.12 0.00 MONTH TO DATE 0.65 0.96 -0.31 2.97 SINCE JUN 1 6.73 9.41 -2.68 13.03 SINCE JAN 1 20.31 26.65 -6.34 29.55 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 6 13 -7 5 SINCE JUL 1 0 0 0 0 COOLING YESTERDAY 12 12 0 13 MONTH TO DATE 63 96 -33 113 SINCE JUN 1 777 712 65 887 SINCE JAN 1 886 818 68 964 ................................................................... WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (10) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (20) AVERAGE WIND SPEED 4.0 SKY COVER AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 97 2:00 AM LOWEST 38 3:00 PM AVERAGE 68 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 87 97 1980 2001 MINIMUM TEMPERATURE (F) 66 47 1989 SUNRISE AND SUNSET AUGUST 9 2021........SUNRISE 6:18 AM EDT SUNSET 8:12 PM EDT AUGUST 10 2021........SUNRISE 6:19 AM EDT SUNSET 8:11 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$