CDUS41 KLWX 220622 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 222 AM EDT SAT AUG 22 2026 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 21 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 82 3:28 PM 96 1962 86 -4 73 MINIMUM 65 6:00 AM 47 1976 65 0 64 AVERAGE 74 75 -1 69 PRECIPITATION (IN) YESTERDAY 0.00 2.72 2018 0.10 -0.10 0.01 MONTH TO DATE 4.17 2.38 1.79 0.85 SINCE JUN 1 13.80 10.83 2.97 10.72 SINCE JAN 1 28.72 28.07 0.65 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 9 10 -1 4 MONTH TO DATE 292 239 53 192 SINCE JUN 1 1005 855 150 990 SINCE JAN 1 1178 961 217 1108 ................................................................... WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (30) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (20) AVERAGE WIND SPEED 4.3 SKY COVER AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 84 11:00 PM LOWEST 39 2:00 PM AVERAGE 62 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 86 101 1983 MINIMUM TEMPERATURE (F) 65 49 2024 SUNRISE AND SUNSETAUGUST 22 2026........SUNRISE 6:30 AM EDT SUNSET 7:55 PM EDT AUGUST 23 2026........SUNRISE 6:31 AM EDT SUNSET 7:53 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$