716
CDUS41 KLWX 172131
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
531 PM EDT FRI OCT 17 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 17 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 66 4:11 PM 84 2016 67 -1 61
MINIMUM 34 5:57 AM 31 1981 45 -11 38
1982
AVERAGE 50 56 -6 50
PRECIPITATION (IN)
TODAY 0.00 1.11 1975 0.11 -0.11 0.00
MONTH TO DATE 0.43 2.04 -1.61 0.13
SINCE SEP 1 1.65 5.98 -4.33 3.40
SINCE JAN 1 26.29 35.20 -8.91 29.18
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 15 9 6 15
MONTH TO DATE 86 117 -31 98
SINCE SEP 1 93 162 -69 110
SINCE JUL 1 95 163 -68 112
COOLING
TODAY 0 0 0 0
MONTH TO DATE 12 19 -7 14
SINCE SEP 1 182 171 11 151
SINCE JAN 1 1330 1227 103 1565
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 6.5
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 6:00 AM
LOWEST 27 4:00 PM
AVERAGE 56
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 85 2016
MINIMUM TEMPERATURE (F) 44 27 1976
1982
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 7:22 AM EDT SUNSET 6:28 PM EDT
OCTOBER 18 2025.......SUNRISE 7:23 AM EDT SUNSET 6:27 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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