474
CDUS41 KLWX 230729
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 AM EST FRI JAN 23 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 22 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 56 2:01 PM 68 1986 42 14 20
MINIMUM 32 11:46 PM -18 1984 25 7 8
AVERAGE 44 34 10 14
PRECIPITATION (IN)
YESTERDAY 0.00 1.18 1987 0.09 -0.09 0.00
MONTH TO DATE 1.34 2.08 -0.74 1.15
SINCE DEC 1 2.64 5.38 -2.74 4.49
SINCE JAN 1 1.34 2.08 -0.74 1.15
SNOWFALL (IN)
YESTERDAY 0.0 11.1 1987 0.2 -0.2 0.0
MONTH TO DATE 0.4 4.4 -4.0 10.5
SINCE DEC 1 2.4 7.2 -4.8 10.6
SINCE JUL 1 2.4 7.5 -5.1 10.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 21 31 -10 51
MONTH TO DATE 639 678 -39 796
SINCE DEC 1 1573 1523 50 1625
SINCE JUL 1 2366 2423 -57 2293
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 22 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 8.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 56 8:00 AM
LOWEST 20 2:00 PM
AVERAGE 38
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 72 1967
MINIMUM TEMPERATURE (F) 25 -4 1970
1978
SUNRISE AND SUNSET
JANUARY 23 2026.......SUNRISE 7:23 AM EST SUNSET 5:21 PM EST
JANUARY 24 2026.......SUNRISE 7:22 AM EST SUNSET 5:22 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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