072
CDUS41 KLWX 180626
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
226 AM EDT FRI JUL 18 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 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 94 MM 100 1988 88 6 98
1997
MINIMUM 70 MM 55 1976 67 3 75
2014
AVERAGE 82 78 4 87
PRECIPITATION (IN)
YESTERDAY T 1.11 2018 0.14 -0.14 0.36
MONTH TO DATE 1.79 2.32 -0.53 2.10
SINCE JUN 1 8.72 6.62 2.10 2.79
SINCE JAN 1 22.64 23.86 -1.22 20.09
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 JUN 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 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 15 13 2 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 17 12 5 22
MONTH TO DATE 253 202 51 302
SINCE JUN 1 574 440 134 656
SINCE JAN 1 692 546 146 839
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 3:00 AM
LOWEST 51 3:00 PM
AVERAGE 76
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 101 2012
MINIMUM TEMPERATURE (F) 67 51 1985
SUNRISE AND SUNSET
JULY 18 2025..........SUNRISE 5:59 AM EDT SUNSET 8:33 PM EDT
JULY 19 2025..........SUNRISE 6:00 AM EDT SUNSET 8:32 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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