157
CDUS41 KLWX 230627
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 AM EDT SAT MAY 23 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 22 2026
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)
YESTERDAY
MAXIMUM 59 12:19 PM 91 2022 76 -17 70
2024
MINIMUM 50 11:59 PM 31 2002 55 -5 54
AVERAGE 55 66 -11 62
PRECIPITATION (IN)
YESTERDAY 0.77 2.07 2001 0.16 0.61 0.10
MONTH TO DATE 2.69 3.32 -0.63 3.96
SINCE MAR 1 7.21 10.29 -3.08 7.39
SINCE JAN 1 13.01 15.84 -2.83 11.81
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 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
YESTERDAY 10 3 7 3
MONTH TO DATE 106 96 10 34
SINCE MAR 1 756 1063 -307 725
SINCE JUL 1 4385 4573 -188 4047
COOLING
YESTERDAY 0 3 -3 0
MONTH TO DATE 62 47 15 68
SINCE MAR 1 148 69 79 115
SINCE JAN 1 148 69 79 115
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 2:00 AM
LOWEST 87 7:00 AM
AVERAGE 92
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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 2026...........SUNRISE 5:51 AM EDT SUNSET 8:23 PM EDT
MAY 24 2026...........SUNRISE 5:50 AM EDT SUNSET 8:23 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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