287
CDUS41 KLWX 212125
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
525 PM EDT THU MAY 21 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 21 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 70 3:51 AM 92 1996 76 -6 59
2022
MINIMUM 57 3:14 PM 33 1992 55 2 54
AVERAGE 64 65 -1 57
PRECIPITATION (IN)
TODAY T 1.06 2003 0.17 -0.17 0.50
MONTH TO DATE 1.73 3.16 -1.43 3.86
SINCE MAR 1 6.25 10.13 -3.88 7.29
SINCE JAN 1 12.05 15.68 -3.63 11.71
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 1.0 4.0 -3.0 0.0
SINCE JUL 1 13.6 21.0 -7.4 15.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 1 3 -2 8
MONTH TO DATE 94 93 1 31
SINCE MAR 1 744 1060 -316 722
SINCE JUL 1 4373 4570 -197 4044
COOLING
TODAY 0 3 -3 0
MONTH TO DATE 62 44 18 68
SINCE MAR 1 148 66 82 115
SINCE JAN 1 148 66 82 115
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 9.3
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 1:00 AM
LOWEST 75 12:00 PM
AVERAGE 86
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 91 2022
2024
MINIMUM TEMPERATURE (F) 55 31 2002
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 5:52 AM EDT SUNSET 8:21 PM EDT
MAY 22 2026...........SUNRISE 5:52 AM EDT SUNSET 8:22 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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