133
CDUS41 KLWX 010621
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
221 AM EDT MON JUN 01 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 31 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 77 4:25 PM 94 1991 79 -2 71
2011
2022
MINIMUM 45 4:35 AM 37 1984 57 -12 50
AVERAGE 61 68 -7 61
PRECIPITATION (IN)
YESTERDAY 0.00 2.35 2018 0.15 -0.15 0.27
MONTH TO DATE 4.60 4.72 -0.12 6.07
SINCE MAR 1 9.12 11.69 -2.57 9.50
SINCE JAN 1 14.92 17.24 -2.32 13.92
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 4 2 2 4
MONTH TO DATE 132 116 16 78
SINCE MAR 1 782 1083 -301 769
SINCE JUL 1 4411 4593 -182 4091
COOLING
YESTERDAY 0 5 -5 0
MONTH TO DATE 87 84 3 71
SINCE MAR 1 173 106 67 118
SINCE JAN 1 173 106 67 118
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 3.6
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 5:00 AM
LOWEST 25 4:00 PM
AVERAGE 57
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 95 2011
MINIMUM TEMPERATURE (F) 58 39 1984
SUNRISE AND SUNSET
JUNE 1 2026..........SUNRISE 5:46 AM EDT SUNSET 8:30 PM EDT
JUNE 2 2026..........SUNRISE 5:46 AM EDT SUNSET 8:30 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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