216
CDUS41 KLWX 290728
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
228 AM EST THU JAN 29 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 28 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 24 4:37 PM 68 2002 43 -19 52
MINIMUM 14 7:34 AM -17 1987 25 -11 28
AVERAGE 19 34 -15 40
PRECIPITATION (IN)
YESTERDAY 0.00 1.64 1998 0.10 -0.10 0.00
MONTH TO DATE 3.18 2.66 0.52 1.15
SINCE DEC 1 4.48 5.96 -1.48 4.49
SINCE JAN 1 3.18 2.66 0.52 1.15
SNOWFALL (IN)
YESTERDAY 0.0 6.7 1994 0.2 -0.2 0.0
MONTH TO DATE 8.2 6.0 2.2 10.5
SINCE DEC 1 10.2 8.8 1.4 10.6
SINCE JUL 1 10.2 9.1 1.1 10.6
SNOW DEPTH 7
DEGREE DAYS
HEATING
YESTERDAY 46 31 15 25
MONTH TO DATE 911 864 47 1006
SINCE DEC 1 1845 1709 136 1835
SINCE JUL 1 2638 2609 29 2503
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 21 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 7.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 54 8:00 PM
LOWEST 41 2:00 PM
AVERAGE 48
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 75 1975
MINIMUM TEMPERATURE (F) 25 -1 1963
1987
SUNRISE AND SUNSET
JANUARY 29 2026.......SUNRISE 7:19 AM EST SUNSET 5:28 PM EST
JANUARY 30 2026.......SUNRISE 7:18 AM EST SUNSET 5:29 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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