457
CDUS41 KLWX 120621
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
221 AM EDT SUN OCT 12 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 11 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 73 1:32 PM 86 2010 70 3 70
MINIMUM 43 3:14 AM 28 1972 47 -4 39
AVERAGE 58 58 0 55
PRECIPITATION (IN)
YESTERDAY T 3.38 2013 0.12 -0.12 0.00
MONTH TO DATE 0.16 1.36 -1.20 0.13
SINCE SEP 1 1.38 5.30 -3.92 3.40
SINCE JAN 1 26.02 34.52 -8.50 29.18
SNOWFALL (IN)
YESTERDAY MM MM MM 0.0 MM 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 7 8 -1 10
MONTH TO DATE 45 66 -21 39
SINCE SEP 1 52 111 -59 51
SINCE JUL 1 54 112 -58 53
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 12 16 -4 14
SINCE SEP 1 182 168 14 151
SINCE JAN 1 1330 1224 106 1565
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 5.1
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 3:00 AM
LOWEST 57 2:00 PM
AVERAGE 77
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 83 1995
2010
MINIMUM TEMPERATURE (F) 47 25 1964
SUNRISE AND SUNSET
OCTOBER 12 2025.......SUNRISE 7:17 AM EDT SUNSET 6:35 PM EDT
OCTOBER 13 2025.......SUNRISE 7:18 AM EDT SUNSET 6:34 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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