National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2025-07-16 06:24 UTC
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708
CDUS41 KLWX 160624
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT WED JUL 16 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 15 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 88 5:32 PM 99 2024 88 0 99
MINIMUM 71 4:10 AM 53 1981 67 4 75
1987
AVERAGE 80 78 2 87
PRECIPITATION (IN)
YESTERDAY 0.00 1.01 2005 0.14 -0.14 0.00
MONTH TO DATE 1.30 2.04 -0.74 1.74
SINCE JUN 1 8.23 6.34 1.89 2.43
SINCE JAN 1 22.15 23.58 -1.43 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 15 12 3 22
MONTH TO DATE 220 178 42 258
SINCE JUN 1 541 416 125 612
SINCE JAN 1 659 522 137 795
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 3.8
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 57 3:00 PM
AVERAGE 79
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 104 1988
MINIMUM TEMPERATURE (F) 67 57 1966
1967
1991
SUNRISE AND SUNSET
JULY 16 2025..........SUNRISE 5:58 AM EDT SUNSET 8:34 PM EDT
JULY 17 2025..........SUNRISE 5:58 AM EDT SUNSET 8:33 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$