Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 042129
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
529 PM EDT FRI JUL 04 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 4 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 85 3:59 PM 97 1999 87 -2 95
2002
MINIMUM 68 5:36 AM 48 1986 66 2 72
AVERAGE 77 77 0 84
PRECIPITATION (IN)
TODAY 0.00 1.87 2001 0.14 -0.14 0.68
MONTH TO DATE 0.39 0.56 -0.17 0.68
SINCE JUN 1 7.32 4.86 2.46 1.37
SINCE JAN 1 21.24 22.10 -0.86 18.67
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 12 12 0 19
MONTH TO DATE 55 46 9 45
SINCE JUN 1 376 284 92 399
SINCE JAN 1 494 390 104 582
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 8.3
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 64 12:00 AM
LOWEST 31 2:00 PM
AVERAGE 48
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 99 1990
1999
MINIMUM TEMPERATURE (F) 66 50 1971
1996
SUNRISE AND SUNSET
JULY 4 2025..........SUNRISE 5:50 AM EDT SUNSET 8:39 PM EDT
JULY 5 2025..........SUNRISE 5:50 AM EDT SUNSET 8:38 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$