National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2025-05-23 06:24 UTC
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991
CDUS41 KLWX 230624
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT FRI MAY 23 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 22 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 70 1:11 PM 91 2022 76 -6 91
MINIMUM 54 1:29 AM 31 2002 55 -1 64
AVERAGE 62 66 -4 78
PRECIPITATION (IN)
YESTERDAY 0.10 2.07 2001 0.16 -0.06 0.00
MONTH TO DATE 3.96 3.32 0.64 3.16
SINCE MAR 1 7.39 10.29 -2.90 8.79
SINCE JAN 1 11.81 15.84 -4.03 16.24
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 MAR 1 0.0 4.0 -4.0 T
SINCE JUL 1 15.5 21.0 -5.5 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 3 3 0 0
MONTH TO DATE 34 96 -62 47
SINCE MAR 1 725 1063 -338 726
SINCE JUL 1 4047 4573 -526 3690
COOLING
YESTERDAY 0 3 -3 13
MONTH TO DATE 68 47 21 69
SINCE MAR 1 115 69 46 113
SINCE JAN 1 115 69 46 116
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 6:00 AM
LOWEST 53 2:00 PM
AVERAGE 77
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 92 1964
2021
MINIMUM TEMPERATURE (F) 55 39 1971
1990
2002
SUNRISE AND SUNSET
MAY 23 2025...........SUNRISE 5:51 AM EDT SUNSET 8:23 PM EDT
MAY 24 2025...........SUNRISE 5:50 AM EDT SUNSET 8:24 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$