103
CDUS41 KLWX 212126
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
526 PM EDT MON APR 21 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 21 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 76 3:51 PM 89 1985 69 7 54
MINIMUM 56 5:31 AM 29 1983 45 11 44
AVERAGE 66 57 9 49
PRECIPITATION (IN)
TODAY T 2.20 1992 0.12 -0.12 0.00
MONTH TO DATE 1.37 2.33 -0.96 1.45
SINCE MAR 1 2.79 5.83 -3.04 5.34
SINCE JAN 1 7.21 11.38 -4.17 12.79
SNOWFALL (IN)
TODAY 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
TODAY 0 9 -9 16
MONTH TO DATE 217 253 -36 161
SINCE MAR 1 667 900 -233 625
SINCE JUL 1 3989 4410 -421 3589
COOLING
TODAY 1 1 0 0
MONTH TO DATE 15 10 5 19
SINCE MAR 1 32 12 20 19
SINCE JAN 1 32 12 20 22
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 8.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 64 1:00 AM
LOWEST 51 3:00 PM
AVERAGE 58
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 92 1985
MINIMUM TEMPERATURE (F) 45 27 1975
SUNRISE AND SUNSET
APRIL 21 2025.........SUNRISE 6:24 AM EDT SUNSET 7:53 PM EDT
APRIL 22 2025.........SUNRISE 6:23 AM EDT SUNSET 7:54 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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