CDUS41 KLWX 222124 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 524 PM EDT SAT AUG 22 2026 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 22 2026... VALID TODAY AS OF 0500 PM LOCAL TIME. 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) TODAY 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) TODAY T 0.94 2009 0.11 -0.11 0.00 MONTH TO DATE 4.17 2.49 1.68 0.85 SINCE JUN 1 13.80 10.94 2.86 10.72 SINCE JAN 1 28.72 28.18 0.54 24.64 SNOWFALL (IN) TODAY 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 TODAY 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 TODAY 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 13 HIGHEST WIND DIRECTION E (100) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (100) AVERAGE WIND SPEED 4.5 SKY COVER AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 90 3:00 AM LOWEST 71 2:00 PM AVERAGE 81 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 86 96 1998 MINIMUM TEMPERATURE (F) 65 47 1981 SUNRISE AND SUNSET AUGUST 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. $$