686
CDUS41 KLWX 082128
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
528 PM EDT MON SEP 08 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 8 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 76 3:42 PM 96 2016 82 -6 74
MINIMUM 47 5:14 AM 43 1984 61 -14 46
AVERAGE 62 72 -10 60
PRECIPITATION (IN)
TODAY 0.00 3.56 1987 0.12 -0.12 0.00
MONTH TO DATE 0.03 0.97 -0.94 T
SINCE SEP 1 0.03 0.97 -0.94 T
SINCE JAN 1 24.67 30.19 -5.52 25.78
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 3 0 3 5
MONTH TO DATE 3 0 3 7
SINCE SEP 1 3 0 3 7
SINCE JUL 1 5 1 4 9
COOLING
TODAY 0 7 -7 0
MONTH TO DATE 38 61 -23 21
SINCE SEP 1 38 61 -23 21
SINCE JAN 1 1186 1117 69 1435
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 5.7
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 6:00 AM
LOWEST 26 4:00 PM
AVERAGE 56
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 2016
MINIMUM TEMPERATURE (F) 61 40 1986
SUNRISE AND SUNSET
SEPTEMBER 8 2025.....SUNRISE 6:45 AM EDT SUNSET 7:29 PM EDT
SEPTEMBER 9 2025.....SUNRISE 6:46 AM EDT SUNSET 7:27 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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