Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 132125
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
525 PM EDT SUN SEP 13 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 13 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 90 3:19 PM 94 1974 80 10 87
MINIMUM 72 6:46 AM 43 1985 59 13 51
AVERAGE 81 70 11 69
PRECIPITATION (IN)
TODAY 0.03 0.68 1983 0.13 -0.10 0.00
MONTH TO DATE 1.42 1.61 -0.19 0.18
SINCE SEP 1 1.42 1.61 -0.19 0.18
SINCE JAN 1 30.82 30.83 -0.01 24.82
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 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
TODAY 0 1 -1 0
MONTH TO DATE 0 4 -4 6
SINCE SEP 1 0 4 -4 6
SINCE JUL 1 0 5 -5 8
COOLING
TODAY 16 6 10 4
MONTH TO DATE 158 92 66 54
SINCE SEP 1 158 92 66 54
SINCE JAN 1 1438 1148 290 1202
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 3.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 5:00 AM
LOWEST 55 3:00 PM
AVERAGE 78
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 1998
MINIMUM TEMPERATURE (F) 59 37 1985
SUNRISE AND SUNSET
SEPTEMBER 13 2026.....SUNRISE 6:49 AM EDT SUNSET 7:21 PM EDT
SEPTEMBER 14 2026.....SUNRISE 6:50 AM EDT SUNSET 7:20 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$