015 CDUS41 KLWX 200523 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 123 AM EDT SUN AUG 20 2023 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 19 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2023 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 86 5:06 PM 95 2002 86 0 88 2019 MINIMUM 54 5:46 AM 51 1998 65 -11 60 AVERAGE 70 76 -6 74 PRECIPITATION (IN) YESTERDAY 0.00 1.54 1967 0.11 -0.11 0.02 MONTH TO DATE 1.84 2.17 -0.33 2.05 SINCE JUN 1 9.23 10.62 -1.39 10.03 SINCE JAN 1 19.21 27.86 -8.65 27.25 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 MM DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 5 13 -8 0 SINCE JUL 1 0 0 0 0 COOLING YESTERDAY 5 11 -6 9 MONTH TO DATE 229 219 10 240 SINCE JUN 1 884 835 49 893 SINCE JAN 1 958 941 17 1022 ................................................................... WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 4.5 SKY COVER AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 80 5:00 AM LOWEST 26 3:00 PM AVERAGE 53 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 86 104 1983 MINIMUM TEMPERATURE (F) 65 47 1964 1976 1998 SUNRISE AND SUNSET AUGUST 20 2023........SUNRISE 6:28 AM EDT SUNSET 7:58 PM EDT AUGUST 21 2023........SUNRISE 6:29 AM EDT SUNSET 7:57 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$