445
CDUS41 KLWX 190725
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
225 AM EST MON JAN 19 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 18 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 37 11:03 AM 70 1990 42 -5 45
MINIMUM 21 11:59 PM -1 1994 25 -4 32
AVERAGE 29 34 -5 39
PRECIPITATION (IN)
YESTERDAY 0.07 1.18 1980 0.09 -0.02 0.03
MONTH TO DATE 1.34 1.70 -0.36 0.85
SINCE DEC 1 2.64 5.00 -2.36 4.19
SINCE JAN 1 1.34 1.70 -0.36 0.85
SNOWFALL (IN)
YESTERDAY T 4.2 1984 0.2 -0.2 0.0
MONTH TO DATE 0.4 3.4 -3.0 9.1
SINCE DEC 1 2.4 6.2 -3.8 9.2
SINCE JUL 1 2.4 6.5 -4.1 9.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 36 31 5 26
MONTH TO DATE 497 554 -57 617
SINCE DEC 1 1431 1399 32 1446
SINCE JUL 1 2224 2299 -75 2114
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 17 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 7.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 6:00 AM
LOWEST 48 7:00 PM
AVERAGE 72
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 65 1972
MINIMUM TEMPERATURE (F) 25 -6 1994
SUNRISE AND SUNSET
JANUARY 19 2026.......SUNRISE 7:25 AM EST SUNSET 5:16 PM EST
JANUARY 20 2026.......SUNRISE 7:25 AM EST SUNSET 5:17 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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