National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2025-06-21 06:31 UTC
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785
CDUS41 KLWX 210631
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
231 AM EDT SAT JUN 21 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 20 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 4:58 PM 97 1964 85 1 91
MINIMUM 63 4:50 AM 48 2000 63 0 66
2022
AVERAGE 75 74 1 79
PRECIPITATION (IN)
YESTERDAY 0.00 1.49 1962 0.13 -0.13 0.00
MONTH TO DATE 5.84 2.89 2.95 0.28
SINCE JUN 1 5.84 2.89 2.95 0.28
SINCE JAN 1 19.76 20.13 -0.37 17.58
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 15.5 21.0 -5.5 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 15 11 4 0
SINCE JUN 1 15 11 4 0
SINCE JUL 1 4106 4603 -497 3691
COOLING
YESTERDAY 10 9 1 14
MONTH TO DATE 160 135 25 185
SINCE JUN 1 160 135 25 185
SINCE JAN 1 278 241 37 368
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 11:00 PM
LOWEST 43 2:00 PM
AVERAGE 61
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 98 1988
MINIMUM TEMPERATURE (F) 64 49 1992
SUNRISE AND SUNSET
JUNE 21 2025..........SUNRISE 5:45 AM EDT SUNSET 8:39 PM EDT
JUNE 22 2025..........SUNRISE 5:45 AM EDT SUNSET 8:39 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$