955
CDUS41 KLWX 010731
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
231 AM EST SUN FEB 01 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 31 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 21 4:51 PM 66 2012 43 -22 51
MINIMUM 9 8:28 AM -7 1965 25 -16 41
AVERAGE 15 34 -19 46
PRECIPITATION (IN)
YESTERDAY 0.00 0.84 2025 0.09 -0.09 0.84
MONTH TO DATE 3.18 2.94 0.24 2.00
SINCE DEC 1 4.48 6.24 -1.76 5.34
SINCE JAN 1 3.18 2.94 0.24 2.00
SNOWFALL (IN)
YESTERDAY 0.0 4.7 1985 0.3 -0.3 0.0
MONTH TO DATE 8.2 6.9 1.3 10.5
SINCE DEC 1 10.2 9.7 0.5 10.6
SINCE JUL 1 10.2 10.0 0.2 10.6
SNOW DEPTH 6
DEGREE DAYS
HEATING
YESTERDAY 50 31 19 19
MONTH TO DATE 1058 957 101 1068
SINCE DEC 1 1992 1802 190 1897
SINCE JUL 1 2785 2702 83 2565
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
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WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 11.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 60 4:00 AM
LOWEST 46 12:00 AM
AVERAGE 53
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 75 2002
MINIMUM TEMPERATURE (F) 25 2 1965
SUNRISE AND SUNSET
FEBRUARY 1 2026......SUNRISE 7:16 AM EST SUNSET 5:31 PM EST
FEBRUARY 2 2026......SUNRISE 7:15 AM EST SUNSET 5:32 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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