328
CDUS41 KLWX 202122
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
422 PM EST TUE JAN 20 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 20 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 31 3:58 PM 63 2006 42 -11 25
MINIMUM 16 7:25 AM -7 1985 25 -9 12
AVERAGE 24 34 -10 19
PRECIPITATION (IN)
TODAY 0.00 1.01 1979 0.10 -0.10 0.00
MONTH TO DATE 1.34 1.89 -0.55 1.15
SINCE DEC 1 2.64 5.19 -2.55 4.49
SINCE JAN 1 1.34 1.89 -0.55 1.15
SNOWFALL (IN)
TODAY 0.0 4.6 2000 0.2 -0.2 0.0
MONTH TO DATE 0.4 3.9 -3.5 10.5
SINCE DEC 1 2.4 6.7 -4.3 10.6
SINCE JUL 1 2.4 7.0 -4.6 10.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 41 31 10 46
MONTH TO DATE 574 616 -42 695
SINCE DEC 1 1508 1461 47 1524
SINCE JUL 1 2301 2361 -60 2192
COOLING
TODAY 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 18 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 9.6
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 42 6:00 AM
LOWEST 18 4:00 PM
AVERAGE 30
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 63 2018
MINIMUM TEMPERATURE (F) 25 -16 1984
SUNRISE AND SUNSET
JANUARY 20 2026.......SUNRISE 7:25 AM EST SUNSET 5:17 PM EST
JANUARY 21 2026.......SUNRISE 7:24 AM EST SUNSET 5:19 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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