713
CDUS41 KLWX 150622
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
222 AM EDT TUE JUL 15 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 14 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 89 2:22 PM 98 1993 88 1 98
2024
MINIMUM 74 11:59 PM 53 2009 67 7 74
AVERAGE 82 77 5 86
PRECIPITATION (IN)
YESTERDAY 0.11 1.56 2002 0.14 -0.03 0.00
MONTH TO DATE 1.30 1.90 -0.60 1.74
SINCE JUN 1 8.23 6.20 2.03 2.43
SINCE JAN 1 22.15 23.44 -1.29 19.73
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 MM
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 21
MONTH TO DATE 205 166 39 236
SINCE JUN 1 526 404 122 590
SINCE JAN 1 644 510 134 773
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 5.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 11:00 PM
LOWEST 67 3:00 PM
AVERAGE 84
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 99 2024
MINIMUM TEMPERATURE (F) 67 53 1981
1987
SUNRISE AND SUNSET
JULY 15 2025..........SUNRISE 5:57 AM EDT SUNSET 8:34 PM EDT
JULY 16 2025..........SUNRISE 5:58 AM EDT SUNSET 8:34 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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