559
CDUS41 KLWX 080629
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 AM EDT FRI MAY 08 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 7 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 65 1:29 PM 90 1986 73 -8 73
2000
MINIMUM 45 11:59 PM 28 1970 50 -5 54
AVERAGE 55 62 -7 64
PRECIPITATION (IN)
YESTERDAY 0.01 1.51 1967 0.13 -0.12 T
MONTH TO DATE 0.29 0.99 -0.70 0.87
SINCE MAR 1 4.81 7.96 -3.15 4.30
SINCE JAN 1 10.61 13.51 -2.90 8.72
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 5 5 1
MONTH TO DATE 52 39 13 2
SINCE MAR 1 702 1006 -304 693
SINCE JUL 1 4331 4516 -185 4015
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 7 10 -3 29
SINCE MAR 1 93 32 61 76
SINCE JAN 1 93 32 61 76
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WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 7.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 11:00 PM
LOWEST 35 2:00 PM
AVERAGE 61
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 90 2000
MINIMUM TEMPERATURE (F) 51 29 1974
SUNRISE AND SUNSET
MAY 8 2026...........SUNRISE 6:04 AM EDT SUNSET 8:09 PM EDT
MAY 9 2026...........SUNRISE 6:03 AM EDT SUNSET 8:10 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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