231
CDUS41 KLWX 180623
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 AM EDT SAT OCT 18 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 17 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 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)
YESTERDAY 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)
YESTERDAY 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
YESTERDAY 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
YESTERDAY 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
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 6:00 AM
LOWEST 27 4:00 PM
AVERAGE 56
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 85 2016
MINIMUM TEMPERATURE (F) 44 27 1976
1982
SUNRISE AND SUNSET
OCTOBER 18 2025.......SUNRISE 7:23 AM EDT SUNSET 6:27 PM EDT
OCTOBER 19 2025.......SUNRISE 7:24 AM EDT SUNSET 6:25 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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