535
CDUS41 KLWX 210724
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EST WED JAN 21 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 20 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 31 3:58 PM 63 2006 42 -11 25
MINIMUM 11 11:59 PM -7 1985 25 -14 12
AVERAGE 21 34 -13 19
PRECIPITATION (IN)
YESTERDAY 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)
YESTERDAY 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
YESTERDAY 44 31 13 46
MONTH TO DATE 577 616 -39 695
SINCE DEC 1 1511 1461 50 1524
SINCE JUL 1 2304 2361 -57 2192
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 18 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 7.7
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 50 11:00 PM
LOWEST 18 4:00 PM
AVERAGE 34
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 63 2018
MINIMUM TEMPERATURE (F) 25 -16 1984
SUNRISE AND SUNSET
JANUARY 21 2026.......SUNRISE 7:24 AM EST SUNSET 5:19 PM EST
JANUARY 22 2026.......SUNRISE 7:24 AM EST SUNSET 5:20 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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