CDUS41 KLWX 240621 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 221 AM EDT MON AUG 24 2026 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 23 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 84 3:52 PM 96 1998 86 -2 83 MINIMUM 63 11:59 PM 47 1981 65 -2 61 AVERAGE 74 75 -1 72 PRECIPITATION (IN) YESTERDAY 0.00 1.60 2001 0.12 -0.12 0.00 MONTH TO DATE 4.29 2.61 1.68 0.85 SINCE JUN 1 13.92 11.06 2.86 10.72 SINCE JAN 1 28.84 28.30 0.54 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 7 MONTH TO DATE 309 259 50 208 SINCE JUN 1 1022 875 147 1006 SINCE JAN 1 1195 981 214 1124 ................................................................... WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 5.6 SKY COVER AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 6:00 AM LOWEST 33 4:00 PM AVERAGE 67 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 86 97 1998 MINIMUM TEMPERATURE (F) 64 46 1971 1987 SUNRISE AND SUNSET AUGUST 24 2026........SUNRISE 6:32 AM EDT SUNSET 7:52 PM EDT AUGUST 25 2026........SUNRISE 6:32 AM EDT SUNSET 7:51 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$