Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 080630
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
230 AM EDT TUE JUL 08 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 7 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 93 4:44 PM 101 1988 88 5 96
2010
2012
MINIMUM 73 5:13 AM 47 1970 67 6 75
AVERAGE 83 77 6 86
PRECIPITATION (IN)
YESTERDAY 0.02 1.59 2005 0.13 -0.11 0.00
MONTH TO DATE 0.41 0.95 -0.54 0.68
SINCE JUN 1 7.34 5.25 2.09 1.37
SINCE JAN 1 21.26 22.49 -1.23 18.67
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 18 12 6 21
MONTH TO DATE 91 82 9 111
SINCE JUN 1 412 320 92 465
SINCE JAN 1 530 426 104 648
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 2:00 AM
LOWEST 54 2:00 PM
AVERAGE 74
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 101 2012
MINIMUM TEMPERATURE (F) 67 48 1983
1984
SUNRISE AND SUNSET
JULY 8 2025..........SUNRISE 5:52 AM EDT SUNSET 8:38 PM EDT
JULY 9 2025..........SUNRISE 5:53 AM EDT SUNSET 8:37 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$