815
CDUS41 KLWX 302128
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
528 PM EDT THU APR 30 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 30 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 69 2:59 PM 88 2024 72 -3 83
MINIMUM 50 4:47 AM 29 1977 48 2 62
AVERAGE 60 60 0 73
PRECIPITATION (IN)
TODAY 0.00 3.99 2014 0.13 -0.13 0.09
MONTH TO DATE 1.67 3.47 -1.80 2.01
SINCE MAR 1 4.52 6.97 -2.45 3.43
SINCE JAN 1 10.32 12.52 -2.20 7.85
SNOWFALL (IN)
TODAY 0.0 0.0 2001 0.0 0.0 0.0
2002
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
TODAY 5 6 -1 0
MONTH TO DATE 203 320 -117 241
SINCE MAR 1 645 967 -322 691
SINCE JUL 1 4274 4477 -203 4013
COOLING
TODAY 0 1 -1 8
MONTH TO DATE 70 20 50 30
SINCE MAR 1 86 22 64 47
SINCE JAN 1 86 22 64 47
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 30 3:00 PM
AVERAGE 65
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 90 2010
MINIMUM TEMPERATURE (F) 48 33 1996
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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