CDUS41 KLWX 050622 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 222 AM EDT TUE MAY 05 2026 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 4 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 78 4:27 PM 90 2001 72 6 76 2018 MINIMUM 41 12:11 AM 31 1967 49 -8 62 AVERAGE 60 61 -1 69 PRECIPITATION (IN) YESTERDAY 0.00 1.23 1996 0.15 -0.15 0.34 MONTH TO DATE 0.01 0.57 -0.56 0.51 SINCE MAR 1 4.53 7.54 -3.01 3.94 SINCE JAN 1 10.33 13.09 -2.76 8.36 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 5 6 -1 0 MONTH TO DATE 42 24 18 0 SINCE MAR 1 692 991 -299 691 SINCE JUL 1 4321 4501 -180 4013 COOLING YESTERDAY 0 1 -1 4 MONTH TO DATE 0 4 -4 27 SINCE MAR 1 86 26 60 74 SINCE JAN 1 86 26 60 74 ................................................................... WIND (MPH) HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (190) AVERAGE WIND SPEED 8.8 SKY COVER AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 76 2:00 AM LOWEST 27 2:00 PM AVERAGE 52 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 73 88 1980 MINIMUM TEMPERATURE (F) 50 29 1976 SUNRISE AND SUNSET MAY 5 2026...........SUNRISE 6:07 AM EDT SUNSET 8:06 PM EDT MAY 6 2026...........SUNRISE 6:06 AM EDT SUNSET 8:07 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$