614
CDUS41 KLWX 090634
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
234 AM EDT WED JUL 09 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 8 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 95 1:53 PM 101 2012 88 7 96
MINIMUM 72 11:27 PM 48 1983 67 5 71
1984
AVERAGE 84 77 7 84
PRECIPITATION (IN)
YESTERDAY 0.21 1.96 2005 0.14 0.07 0.00
MONTH TO DATE 0.62 1.09 -0.47 0.68
SINCE JUN 1 7.55 5.39 2.16 1.37
SINCE JAN 1 21.47 22.63 -1.16 18.67
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 19 12 7 19
MONTH TO DATE 110 94 16 130
SINCE JUN 1 431 332 99 484
SINCE JAN 1 549 438 111 667
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 3.8
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 11:00 PM
LOWEST 48 2:00 PM
AVERAGE 73
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 99 1988
1993
MINIMUM TEMPERATURE (F) 67 48 1984
SUNRISE AND SUNSET
JULY 9 2025..........SUNRISE 5:53 AM EDT SUNSET 8:37 PM EDT
JULY 10 2025..........SUNRISE 5:53 AM EDT SUNSET 8:37 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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