673
CDUS41 KLWX 272129
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
529 PM EDT SAT SEP 27 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 27 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 77 2:31 PM 96 1998 75 2 77
MINIMUM 64 1:36 AM 35 1984 53 11 70
AVERAGE 71 64 7 74
PRECIPITATION (IN)
TODAY T 1.55 1985 0.14 -0.14 0.20
MONTH TO DATE 1.22 3.51 -2.29 3.00
SINCE SEP 1 1.22 3.51 -2.29 3.00
SINCE JAN 1 25.86 32.73 -6.87 28.78
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 0 3 -3 0
MONTH TO DATE 7 31 -24 12
SINCE SEP 1 7 31 -24 12
SINCE JUL 1 9 32 -23 14
COOLING
TODAY 6 2 4 9
MONTH TO DATE 150 145 5 120
SINCE SEP 1 150 145 5 120
SINCE JAN 1 1298 1201 97 1534
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 3.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 7:00 AM
LOWEST 64 1:00 PM
AVERAGE 79
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 86 1998
2019
MINIMUM TEMPERATURE (F) 53 34 1989
SUNRISE AND SUNSET
SEPTEMBER 27 2025.....SUNRISE 7:02 AM EDT SUNSET 6:58 PM EDT
SEPTEMBER 28 2025.....SUNRISE 7:03 AM EDT SUNSET 6:57 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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