670
CDUS41 KLWX 210623
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 AM EDT TUE OCT 21 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 20 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 68 2:01 PM 83 1969 66 2 76
2016
MINIMUM 42 11:59 PM 20 1972 44 -2 35
AVERAGE 55 55 0 56
PRECIPITATION (IN)
YESTERDAY 0.01 1.44 2019 0.12 -0.11 0.00
MONTH TO DATE 0.85 2.40 -1.55 0.13
SINCE SEP 1 2.07 6.34 -4.27 3.40
SINCE JAN 1 26.71 35.56 -8.85 29.18
SNOWFALL (IN)
YESTERDAY 0.0 T 1974 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 10 10 0 9
MONTH TO DATE 102 147 -45 130
SINCE SEP 1 109 192 -83 142
SINCE JUL 1 111 193 -82 144
COOLING
YESTERDAY 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
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WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 9.9
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1:00 AM
LOWEST 31 2:00 PM
AVERAGE 64
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 86 1979
MINIMUM TEMPERATURE (F) 43 22 1972
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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