952
CDUS41 KLWX 300624
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT SAT MAY 30 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 29 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 79 5:02 PM 97 1969 78 1 72
MINIMUM 48 5:06 AM 40 1997 57 -9 56
AVERAGE 64 67 -3 64
PRECIPITATION (IN)
YESTERDAY 0.00 1.00 1984 0.16 -0.16 T
MONTH TO DATE 4.60 4.42 0.18 5.25
SINCE MAR 1 9.12 11.39 -2.27 8.68
SINCE JAN 1 14.92 16.94 -2.02 13.10
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 1 2 -1 1
MONTH TO DATE 126 112 14 74
SINCE MAR 1 776 1079 -303 765
SINCE JUL 1 4405 4589 -184 4087
COOLING
YESTERDAY 0 4 -4 0
MONTH TO DATE 87 75 12 68
SINCE MAR 1 173 97 76 115
SINCE JAN 1 173 97 76 115
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WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 4.8
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 5:00 AM
LOWEST 36 4:00 PM
AVERAGE 63
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 95 1987
1991
2006
MINIMUM TEMPERATURE (F) 57 38 1996
SUNRISE AND SUNSET
MAY 30 2026...........SUNRISE 5:47 AM EDT SUNSET 8:28 PM EDT
MAY 31 2026...........SUNRISE 5:47 AM EDT SUNSET 8:29 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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