379
CDUS41 KLWX 300626
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
226 AM EDT THU APR 30 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 29 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 60 12:12 PM 91 2024 71 -11 84
MINIMUM 54 11:59 PM 32 1987 48 6 52
AVERAGE 57 60 -3 68
PRECIPITATION (IN)
YESTERDAY 0.52 1.19 2014 0.13 0.39 0.00
MONTH TO DATE 1.67 3.34 -1.67 1.92
SINCE MAR 1 4.52 6.84 -2.32 3.34
SINCE JAN 1 10.32 12.39 -2.07 7.76
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
MONTH TO DATE T 0.1 -0.1 0.0
SINCE MAR 1 1.0 4.0 -3.0 0.0
SINCE JUL 1 13.6 21.0 -7.4 15.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 8 7 1 0
MONTH TO DATE 198 314 -116 241
SINCE MAR 1 640 961 -321 691
SINCE JUL 1 4269 4471 -202 4013
COOLING
YESTERDAY 0 1 -1 3
MONTH TO DATE 70 18 52 22
SINCE MAR 1 86 20 66 39
SINCE JAN 1 86 20 66 39
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 5:00 PM
LOWEST 70 10:00 AM
AVERAGE 84
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 88 2024
MINIMUM TEMPERATURE (F) 48 29 1977
SUNRISE AND SUNSET
APRIL 30 2026.........SUNRISE 6:13 AM EDT SUNSET 8:02 PM EDT
MAY 1 2026...........SUNRISE 6:12 AM EDT SUNSET 8:03 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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