768
CDUS41 KLWX 190622
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
222 AM EDT SAT JUL 19 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 18 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 86 3:27 PM 101 2012 88 -2 85
MINIMUM 74 11:49 PM 51 1985 67 7 72
AVERAGE 80 78 2 79
PRECIPITATION (IN)
YESTERDAY 0.01 1.66 2017 0.15 -0.14 0.00
MONTH TO DATE 1.80 2.47 -0.67 2.10
SINCE JUN 1 8.73 6.77 1.96 2.79
SINCE JAN 1 22.65 24.01 -1.36 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 15 12 3 14
MONTH TO DATE 268 214 54 316
SINCE JUN 1 589 452 137 670
SINCE JAN 1 707 558 149 853
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 3.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 11:00 PM
LOWEST 57 12:00 PM
AVERAGE 77
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 98 1977
2020
MINIMUM TEMPERATURE (F) 67 53 1976
SUNRISE AND SUNSET
JULY 19 2025..........SUNRISE 6:00 AM EDT SUNSET 8:32 PM EDT
JULY 20 2025..........SUNRISE 6:01 AM EDT SUNSET 8:31 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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