746
CDUS41 KLWX 170740
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
240 AM EST SAT JAN 17 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 16 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 11:36 PM 65 1974 42 -5 35
MINIMUM 18 7:38 AM -4 1964 25 -7 9
AVERAGE 28 34 -6 22
PRECIPITATION (IN)
YESTERDAY 0.00 1.12 2022 0.10 -0.10 0.01
MONTH TO DATE 1.24 1.51 -0.27 0.82
SINCE DEC 1 2.54 4.81 -2.27 4.16
SINCE JAN 1 1.24 1.51 -0.27 0.82
SNOWFALL (IN)
YESTERDAY 0.0 2.3 1965 0.2 -0.2 0.3
2022
MONTH TO DATE 0.1 2.9 -2.8 9.1
SINCE DEC 1 2.1 5.7 -3.6 9.2
SINCE JUL 1 2.1 6.0 -3.9 9.2
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 37 31 6 43
MONTH TO DATE 434 492 -58 564
SINCE DEC 1 1368 1337 31 1393
SINCE JUL 1 2161 2237 -76 2061
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 25 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 9.6
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 52 7:00 AM
LOWEST 28 11:00 PM
AVERAGE 40
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 70 1990
MINIMUM TEMPERATURE (F) 25 -7 1982
SUNRISE AND SUNSET
JANUARY 17 2026.......SUNRISE 7:26 AM EST SUNSET 5:14 PM EST
JANUARY 18 2026.......SUNRISE 7:26 AM EST SUNSET 5:15 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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