221
CDUS41 KLWX 110623
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 AM EDT SAT OCT 11 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 10 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 67 2:43 PM 87 2017 70 -3 65
MINIMUM 38 5:13 AM 31 1972 48 -10 42
1978
AVERAGE 53 59 -6 54
PRECIPITATION (IN)
YESTERDAY 0.00 2.22 2013 0.11 -0.11 0.00
MONTH TO DATE 0.16 1.24 -1.08 0.13
SINCE SEP 1 1.38 5.18 -3.80 3.40
SINCE JAN 1 26.02 34.40 -8.38 29.18
SNOWFALL (IN)
YESTERDAY 0.0 1.3 1979 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 12 7 5 11
MONTH TO DATE 38 58 -20 29
SINCE SEP 1 45 103 -58 41
SINCE JUL 1 47 104 -57 43
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 12 15 -3 14
SINCE SEP 1 182 167 15 151
SINCE JAN 1 1330 1223 107 1565
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 5.1
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 4:00 AM
LOWEST 41 12:00 PM
AVERAGE 65
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 86 2010
MINIMUM TEMPERATURE (F) 47 28 1972
SUNRISE AND SUNSET
OCTOBER 11 2025.......SUNRISE 7:16 AM EDT SUNSET 6:37 PM EDT
OCTOBER 12 2025.......SUNRISE 7:17 AM EDT SUNSET 6:35 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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