656
CDUS41 KLWX 270629
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 AM EDT WED MAY 27 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 26 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 76 3:49 PM 92 2007 77 -1 72
2021
MINIMUM 62 3:38 AM 38 1967 56 6 52
AVERAGE 69 67 2 62
PRECIPITATION (IN)
YESTERDAY 0.08 3.59 2009 0.15 -0.07 T
MONTH TO DATE 4.52 3.95 0.57 3.96
SINCE MAR 1 9.04 10.92 -1.88 7.39
SINCE JAN 1 14.84 16.47 -1.63 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 0 2 -2 3
MONTH TO DATE 125 106 19 55
SINCE MAR 1 775 1073 -298 746
SINCE JUL 1 4404 4583 -179 4068
COOLING
YESTERDAY 4 4 0 0
MONTH TO DATE 71 63 8 68
SINCE MAR 1 157 85 72 115
SINCE JAN 1 157 85 72 115
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 2.5
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 71 4:00 PM
AVERAGE 86
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 92 1965
2010
MINIMUM TEMPERATURE (F) 56 37 1972
SUNRISE AND SUNSET
MAY 27 2026...........SUNRISE 5:49 AM EDT SUNSET 8:26 PM EDT
MAY 28 2026...........SUNRISE 5:48 AM EDT SUNSET 8:27 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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