246
CDUS41 KLWX 292128
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
528 PM EDT TUE JUL 29 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 29 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 95 2:42 PM 103 2011 88 7 96
MINIMUM 70 5:17 AM 52 2014 67 3 69
AVERAGE 83 77 6 83
PRECIPITATION (IN)
TODAY 0.00 0.92 2001 0.12 -0.12 0.00
MONTH TO DATE 2.65 3.89 -1.24 2.54
SINCE JUN 1 9.58 8.19 1.39 3.23
SINCE JAN 1 23.50 25.43 -1.93 20.53
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 18 12 6 18
MONTH TO DATE 440 346 94 462
SINCE JUN 1 761 584 177 816
SINCE JAN 1 879 690 189 999
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 2.8
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1:00 AM
LOWEST 46 2:00 PM
AVERAGE 72
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 98 1988
MINIMUM TEMPERATURE (F) 67 48 2014
SUNRISE AND SUNSET
JULY 29 2025..........SUNRISE 6:08 AM EDT SUNSET 8:24 PM EDT
JULY 30 2025..........SUNRISE 6:09 AM EDT SUNSET 8:23 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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