656
CDUS41 KLWX 202122
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
522 PM EDT SUN JUL 20 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 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 91 3:54 PM 101 1980 88 3 83
MINIMUM 73 4:13 AM 55 1974 67 6 69
AVERAGE 82 78 4 76
PRECIPITATION (IN)
TODAY 0.00 2.28 1970 0.14 -0.14 0.03
MONTH TO DATE 1.80 2.74 -0.94 2.13
SINCE JUN 1 8.73 7.04 1.69 2.82
SINCE JAN 1 22.65 24.28 -1.63 20.12
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 15 13 2 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 17 12 5 11
MONTH TO DATE 301 238 63 340
SINCE JUN 1 622 476 146 694
SINCE JAN 1 740 582 158 877
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 6.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 4:00 AM
LOWEST 49 4:00 PM
AVERAGE 75
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 101 1991
MINIMUM TEMPERATURE (F) 67 48 1966
SUNRISE AND SUNSET
JULY 20 2025..........SUNRISE 6:01 AM EDT SUNSET 8:31 PM EDT
JULY 21 2025..........SUNRISE 6:02 AM EDT SUNSET 8:30 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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