670
CDUS41 KLWX 102122
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
522 PM EDT FRI OCT 10 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 10 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 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)
TODAY 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)
TODAY 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
TODAY 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
TODAY 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 5.6
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 4:00 AM
LOWEST 41 12:00 PM
AVERAGE 65
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 86 2010
MINIMUM TEMPERATURE (F) 47 28 1972
SUNRISE AND SUNSET
OCTOBER 10 2025.......SUNRISE 7:15 AM EDT SUNSET 6:38 PM EDT
OCTOBER 11 2025.......SUNRISE 7:16 AM EDT SUNSET 6:37 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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