877
CDUS41 KLWX 202135
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
535 PM EDT SUN APR 20 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 20 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 73 2:24 PM 88 1976 69 4 74
1985
2023
MINIMUM 63 2:48 AM 28 1974 45 18 53
AVERAGE 68 57 11 64
PRECIPITATION (IN)
TODAY 0.00 2.90 2008 0.12 -0.12 0.01
MONTH TO DATE 1.37 2.21 -0.84 1.45
SINCE MAR 1 2.79 5.71 -2.92 5.34
SINCE JAN 1 7.21 11.26 -4.05 12.79
SNOWFALL (IN)
TODAY 0.0 T 1983 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
TODAY 0 9 -9 1
MONTH TO DATE 217 244 -27 145
SINCE MAR 1 667 891 -224 609
SINCE JUL 1 3989 4401 -412 3573
COOLING
TODAY 3 1 2 0
MONTH TO DATE 15 9 6 19
SINCE MAR 1 32 11 21 19
SINCE JAN 1 32 11 21 22
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 8.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 3:00 AM
LOWEST 39 4:00 PM
AVERAGE 62
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 89 1985
MINIMUM TEMPERATURE (F) 45 29 1983
SUNRISE AND SUNSET
APRIL 20 2025.........SUNRISE 6:26 AM EDT SUNSET 7:52 PM EDT
APRIL 21 2025.........SUNRISE 6:24 AM EDT SUNSET 7:53 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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