895
CDUS41 KLWX 210629
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 AM EDT THU MAY 21 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 20 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 95R 2:21 PM 93 1996 76 19 70
MINIMUM 64 5:15 AM 36 2002 54 10 53
AVERAGE 80 65 15 62
PRECIPITATION (IN)
YESTERDAY 0.86 1.86 2005 0.16 0.70 0.02
MONTH TO DATE 1.73 2.99 -1.26 3.36
SINCE MAR 1 6.25 9.96 -3.71 6.79
SINCE JAN 1 12.05 15.51 -3.46 11.21
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 3 -3 3
MONTH TO DATE 93 90 3 23
SINCE MAR 1 743 1057 -314 714
SINCE JUL 1 4372 4567 -195 4036
COOLING
YESTERDAY 15 3 12 0
MONTH TO DATE 62 41 21 68
SINCE MAR 1 148 63 85 115
SINCE JAN 1 148 63 85 115
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 39 1:00 PM
AVERAGE 68
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1996
2022
MINIMUM TEMPERATURE (F) 55 33 1992
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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