659
CDUS41 KLWX 220725
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
225 AM EST THU JAN 22 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 21 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 42 4:33 PM 63 2018 42 0 20
MINIMUM 6 6:15 AM -16 1984 25 -19 10
AVERAGE 24 34 -10 15
PRECIPITATION (IN)
YESTERDAY 0.00 0.94 1974 0.10 -0.10 T
MONTH TO DATE 1.34 1.99 -0.65 1.15
SINCE DEC 1 2.64 5.29 -2.65 4.49
SINCE JAN 1 1.34 1.99 -0.65 1.15
SNOWFALL (IN)
YESTERDAY 0.0 8.5 2014 0.3 -0.3 T
MONTH TO DATE 0.4 4.2 -3.8 10.5
SINCE DEC 1 2.4 7.0 -4.6 10.6
SINCE JUL 1 2.4 7.3 -4.9 10.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 41 31 10 50
MONTH TO DATE 618 647 -29 745
SINCE DEC 1 1552 1492 60 1574
SINCE JUL 1 2345 2392 -47 2242
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
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 8.2
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 4:00 AM
LOWEST 19 3:00 PM
AVERAGE 48
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 68 1986
MINIMUM TEMPERATURE (F) 25 -18 1984
SUNRISE AND SUNSET
JANUARY 22 2026.......SUNRISE 7:24 AM EST SUNSET 5:20 PM EST
JANUARY 23 2026.......SUNRISE 7:23 AM EST SUNSET 5:21 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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