Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 040626
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
226 AM EDT FRI JUL 04 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 3 2025...
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)
YESTERDAY
MAXIMUM 90 3:00 PM 103 1966 87 3 89
MINIMUM 66 5:11 AM 50 1962 66 0 65
1977
AVERAGE 78 77 1 77
PRECIPITATION (IN)
YESTERDAY 0.00 1.66 1978 0.13 -0.13 0.00
MONTH TO DATE 0.39 0.42 -0.03 0.00
SINCE JUN 1 7.32 4.72 2.60 0.69
SINCE JAN 1 21.24 21.96 -0.72 17.99
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 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
YESTERDAY 13 12 1 12
MONTH TO DATE 43 34 9 26
SINCE JUN 1 364 272 92 380
SINCE JAN 1 482 378 104 563
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 4.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 2:00 AM
LOWEST 40 3:00 PM
AVERAGE 70
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 97 1999
2002
MINIMUM TEMPERATURE (F) 66 48 1986
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.
$$