CDUS41 KLWX 230647 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 247 AM EDT SUN AUG 23 2026 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 22 2026... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 80 3:42 PM 101 1983 86 -6 84 MINIMUM 66 2:06 AM 49 2024 65 1 64 AVERAGE 73 75 -2 74 PRECIPITATION (IN) YESTERDAY 0.12 0.94 2009 0.11 0.01 0.00 MONTH TO DATE 4.29 2.49 1.80 0.85 SINCE JUN 1 13.92 10.94 2.98 10.72 SINCE JAN 1 28.84 28.18 0.66 24.64 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 1 13 -12 15 SINCE JUL 1 0 0 0 0 COOLING YESTERDAY 8 10 -2 9 MONTH TO DATE 300 249 51 201 SINCE JUN 1 1013 865 148 999 SINCE JAN 1 1186 971 215 1117 ................................................................... WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (110) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SE (120) AVERAGE WIND SPEED 5.3 SKY COVER AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 9:00 PM LOWEST 71 2:00 PM AVERAGE 82 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 86 96 1998MINIMUM TEMPERATURE (F) 65 47 1981 SUNRISE AND SUNSET AUGUST 23 2026........SUNRISE 6:31 AM EDT SUNSET 7:53 PM EDT AUGUST 24 2026........SUNRISE 6:32 AM EDT SUNSET 7:52 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$