281
CDUS41 KLWX 110624
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT FRI JUL 11 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 10 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 87 4:39 PM 99 1988 88 -1 94
1993
MINIMUM 71 11:27 PM 53 1963 67 4 77
AVERAGE 79 77 2 86
PRECIPITATION (IN)
YESTERDAY T 1.63 1995 0.14 -0.14 0.38
MONTH TO DATE 0.84 1.36 -0.52 1.06
SINCE JUN 1 7.77 5.66 2.11 1.75
SINCE JAN 1 21.69 22.90 -1.21 19.05
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 14 12 2 21
MONTH TO DATE 141 118 23 173
SINCE JUN 1 462 356 106 527
SINCE JAN 1 580 462 118 710
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 3.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 5:00 AM
LOWEST 57 5:00 PM
AVERAGE 77
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 98 1988
MINIMUM TEMPERATURE (F) 67 52 1983
SUNRISE AND SUNSET
JULY 11 2025..........SUNRISE 5:54 AM EDT SUNSET 8:36 PM EDT
JULY 12 2025..........SUNRISE 5:55 AM EDT SUNSET 8:36 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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