CDUS41 KLWX 200630 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 230 AM EDT WED MAY 20 2026 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 19 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 96R 2:47 PM 92 1996 76 20 75 1997 MINIMUM 67 11:59 PM 36 2002 54 13 55 AVERAGE 82 65 17 65 PRECIPITATION (IN) YESTERDAY T 1.18 1988 0.15 -0.15 0.00 MONTH TO DATE 0.87 2.83 -1.96 3.34 SINCE MAR 1 5.39 9.80 -4.41 6.77 SINCE JAN 1 11.19 15.35 -4.16 11.19 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 MAR 1 1.0 4.0 -3.0 0.0 SINCE JUL 1 13.6 21.0 -7.4 15.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 3 -3 0 MONTH TO DATE 93 87 6 20 SINCE MAR 1 743 1054 -311 711 SINCE JUL 1 4372 4564 -192 4033 COOLING YESTERDAY 17 3 14 0 MONTH TO DATE 47 38 9 68 SINCE MAR 1 133 60 73 115 SINCE JAN 1 133 60 73 115 ................................................................... WIND (MPH) HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION SW (240) AVERAGE WIND SPEED 6.1 SKY COVER AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 90 11:00 PM LOWEST 32 4:00 PM AVERAGE 61 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 76 93 1996MINIMUM TEMPERATURE (F) 54 36 2002 SUNRISE AND SUNSET MAY 20 2026...........SUNRISE 5:53 AM EDT SUNSET 8:20 PM EDT MAY 21 2026...........SUNRISE 5:52 AM EDT SUNSET 8:21 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$