698
CDUS41 KLWX 300625
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
225 AM EDT WED APR 30 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 29 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 84 3:57 PM 91 2024 71 13 91
MINIMUM 52 3:14 AM 32 1987 48 4 57
AVERAGE 68 60 8 74
PRECIPITATION (IN)
YESTERDAY 0.00 1.19 2014 0.13 -0.13 0.00
MONTH TO DATE 1.92 3.34 -1.42 1.60
SINCE MAR 1 3.34 6.84 -3.50 5.49
SINCE JAN 1 7.76 12.39 -4.63 12.94
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1 T
SINCE MAR 1 0.0 4.0 -4.0 T
SINCE JUL 1 15.5 21.0 -5.5 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 7 -7 0
MONTH TO DATE 241 314 -73 215
SINCE MAR 1 691 961 -270 679
SINCE JUL 1 4013 4471 -458 3643
COOLING
YESTERDAY 3 1 2 9
MONTH TO DATE 22 18 4 34
SINCE MAR 1 39 20 19 34
SINCE JAN 1 39 20 19 37
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WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 11.6
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62 7:00 AM
LOWEST 39 1:00 PM
AVERAGE 51
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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 2025.........SUNRISE 6:13 AM EDT SUNSET 8:02 PM EDT
MAY 1 2025...........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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