981 CDUS41 KLWX 200524 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 124 AM EDT MON JUL 20 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 19 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 98R 5:12 PM 98 1977 88 10 96 MINIMUM 71 3:47 AM 53 1976 66 5 72 AVERAGE 85 77 8 84 PRECIPITATION (IN) YESTERDAY 0.00 1.52 1968 0.11 -0.11 0.00 MONTH TO DATE 1.56 2.24 -0.68 1.95 SINCE JUN 1 6.77 6.22 0.55 4.39 SINCE JAN 1 23.29 23.04 0.25 24.27 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 20 12 8 19 MONTH TO DATE 295 223 72 277 SINCE JUN 1 568 460 108 533 SINCE JAN 1 645 552 93 712 ................................................................... WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 4.5 SKY COVER AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 91 6:00 AM LOWEST 39 5:00 PM AVERAGE 65 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 88 101 1980 MINIMUM TEMPERATURE (F) 66 55 1974 SUNRISE AND SUNSET JULY 20 2020..........SUNRISE 6:01 AM EDT SUNSET 8:31 PM EDT JULY 21 2020..........SUNRISE 6:02 AM EDT SUNSET 8:30 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$