153
CDUS41 KLWX 212121
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
521 PM EDT TUE OCT 21 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 21 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 74 2:29 PM 86 1979 66 8 80
MINIMUM 35 6:42 AM 22 1972 43 -8 38
AVERAGE 55 55 0 59
PRECIPITATION (IN)
TODAY 0.00 2.45 1995 0.12 -0.12 0.00
MONTH TO DATE 0.85 2.52 -1.67 0.13
SINCE SEP 1 2.07 6.46 -4.39 3.40
SINCE JAN 1 26.71 35.68 -8.97 29.18
SNOWFALL (IN)
TODAY MM MM MM 0.0 MM 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
TODAY 10 11 -1 6
MONTH TO DATE 112 158 -46 136
SINCE SEP 1 119 203 -84 148
SINCE JUL 1 121 204 -83 150
COOLING
TODAY 0 0 0 0
MONTH TO DATE 12 19 -7 14
SINCE SEP 1 182 171 11 151
SINCE JAN 1 1330 1227 103 1565
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 4.7
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 5:00 AM
LOWEST 28 2:00 PM
AVERAGE 64
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 85 1979
MINIMUM TEMPERATURE (F) 43 26 1974
SUNRISE AND SUNSET
OCTOBER 21 2025.......SUNRISE 7:26 AM EDT SUNSET 6:22 PM EDT
OCTOBER 22 2025.......SUNRISE 7:27 AM EDT SUNSET 6:21 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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