


Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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531 CDUS41 KLWX 050624 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 224 AM EDT SUN OCT 05 2025 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 4 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 81 4:14 PM 90 2013 72 9 79 MINIMUM 45 6:25 AM 26 1974 50 -5 63 AVERAGE 63 61 2 71 PRECIPITATION (IN) YESTERDAY 0.00 0.81 1999 0.13 -0.13 0.00 MONTH TO DATE 0.00 0.51 -0.51 0.13 SINCE SEP 1 1.22 4.45 -3.23 3.40 SINCE JAN 1 25.86 33.67 -7.81 29.18 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 SEP 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 2 5 -3 0 MONTH TO DATE 16 19 -3 0 SINCE SEP 1 23 64 -41 12 SINCE JUL 1 25 65 -40 14 COOLING YESTERDAY 0 2 -2 6 MONTH TO DATE 0 8 -8 12 SINCE SEP 1 170 160 10 149 SINCE JAN 1 1318 1216 102 1563 ................................................................... WIND (MPH) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (200) AVERAGE WIND SPEED 1.7 SKY COVER AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 1:00 AM LOWEST 34 3:00 PM AVERAGE 67 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 72 90 1967 2013 MINIMUM TEMPERATURE (F) 50 32 1970 SUNRISE AND SUNSET OCTOBER 5 2025.......SUNRISE 7:10 AM EDT SUNSET 6:46 PM EDT OCTOBER 6 2025.......SUNRISE 7:11 AM EDT SUNSET 6:44 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$