Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 070623
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 AM EDT SUN SEP 07 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 6 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 94 12:44 PM 100 2023 83 11 80
MINIMUM 63 11:59 PM 45 1972 61 2 57
1976
AVERAGE 79 72 7 69
PRECIPITATION (IN)
YESTERDAY 0.02 5.11 2008 0.12 -0.10 0.00
MONTH TO DATE 0.02 0.73 -0.71 0.00
SINCE SEP 1 0.02 0.73 -0.71 0.00
SINCE JAN 1 24.66 29.95 -5.29 25.78
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 SEP 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 2
SINCE SEP 1 0 0 0 2
SINCE JUL 1 2 1 1 4
COOLING
YESTERDAY 14 7 7 4
MONTH TO DATE 38 47 -9 19
SINCE SEP 1 38 47 -9 19
SINCE JAN 1 1186 1103 83 1433
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 8.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 91 4:00 AM
LOWEST 37 1:00 PM
AVERAGE 64
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 97 2023
MINIMUM TEMPERATURE (F) 61 41 1976
SUNRISE AND SUNSET
SEPTEMBER 7 2025.....SUNRISE 6:44 AM EDT SUNSET 7:30 PM EDT
SEPTEMBER 8 2025.....SUNRISE 6:45 AM EDT SUNSET 7:29 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$