537
CDUS41 KLWX 200623
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 AM EDT MON OCT 20 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 19 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 78 3:09 PM 87 2016 67 11 74
MINIMUM 50 3:11 AM 25 1976 44 6 36
AVERAGE 64 55 9 55
PRECIPITATION (IN)
YESTERDAY 0.41 1.36 1966 0.12 0.29 0.00
MONTH TO DATE 0.84 2.28 -1.44 0.13
SINCE SEP 1 2.06 6.22 -4.16 3.40
SINCE JAN 1 26.70 35.44 -8.74 29.18
SNOWFALL (IN)
YESTERDAY 0.0 0.1 1972 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 1 10 -9 10
MONTH TO DATE 92 137 -45 121
SINCE SEP 1 99 182 -83 133
SINCE JUL 1 101 183 -82 135
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
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 9.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 10:00 PM
LOWEST 45 4:00 PM
AVERAGE 71
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 83 1969
2016
MINIMUM TEMPERATURE (F) 44 20 1972
SUNRISE AND SUNSET
OCTOBER 20 2025.......SUNRISE 7:25 AM EDT SUNSET 6:24 PM EDT
OCTOBER 21 2025.......SUNRISE 7:26 AM EDT SUNSET 6:22 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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