Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 152124
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT FRI AUG 15 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 15 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 89 11:57 AM 102 1988 87 2 89
MINIMUM 69 2:15 AM 45 1964 66 3 61
AVERAGE 79 76 3 75
PRECIPITATION (IN)
TODAY 0.27 2.18 2019 0.11 0.16 0.00
MONTH TO DATE 0.59 1.74 -1.15 1.97
SINCE JUN 1 10.46 10.19 0.27 5.32
SINCE JAN 1 24.38 27.43 -3.05 22.62
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 14 11 3 10
MONTH TO DATE 132 175 -43 222
SINCE JUN 1 930 791 139 1075
SINCE JAN 1 1048 897 151 1258
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 63 10:00 AM
AVERAGE 82
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 100 1997
MINIMUM TEMPERATURE (F) 65 46 1979
SUNRISE AND SUNSET
AUGUST 15 2025........SUNRISE 6:24 AM EDT SUNSET 8:04 PM EDT
AUGUST 16 2025........SUNRISE 6:25 AM EDT SUNSET 8:03 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$