National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2025-07-24 06:24 UTC
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872
CDUS41 KLWX 240624
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT THU JUL 24 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 23 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 4:20 PM 99 1991 88 -2 92
2011
MINIMUM 69 5:34 AM 50 1977 67 2 67
1983
AVERAGE 78 77 1 80
PRECIPITATION (IN)
YESTERDAY 0.00 1.51 1988 0.13 -0.13 0.12
MONTH TO DATE 1.83 3.13 -1.30 2.32
SINCE JUN 1 8.76 7.43 1.33 3.01
SINCE JAN 1 22.68 24.67 -1.99 20.31
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 13 12 1 15
MONTH TO DATE 335 274 61 383
SINCE JUN 1 656 512 144 737
SINCE JAN 1 774 618 156 920
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 6.1
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 6:00 AM
LOWEST 52 7:00 PM
AVERAGE 71
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 99 2010
MINIMUM TEMPERATURE (F) 67 48 1985
SUNRISE AND SUNSET
JULY 24 2025..........SUNRISE 6:04 AM EDT SUNSET 8:28 PM EDT
JULY 25 2025..........SUNRISE 6:05 AM EDT SUNSET 8:27 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$