935
CDUS41 KLWX 010623
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 AM EDT FRI MAY 01 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 30 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 69 2:59 PM 88 2024 72 -3 83
MINIMUM 41 11:53 PM 29 1977 48 -7 62
AVERAGE 55 60 -5 73
PRECIPITATION (IN)
YESTERDAY 0.00 3.99 2014 0.13 -0.13 0.09
MONTH TO DATE 1.67 3.47 -1.80 2.01
SINCE MAR 1 4.52 6.97 -2.45 3.43
SINCE JAN 1 10.32 12.52 -2.20 7.85
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
2002
MONTH TO DATE T 0.1 -0.1 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 6 4 0
MONTH TO DATE 208 320 -112 241
SINCE MAR 1 650 967 -317 691
SINCE JUL 1 4279 4477 -198 4013
COOLING
YESTERDAY 0 1 -1 8
MONTH TO DATE 70 20 50 30
SINCE MAR 1 86 22 64 47
SINCE JAN 1 86 22 64 47
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WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 30 3:00 PM
AVERAGE 65
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 90 2010
MINIMUM TEMPERATURE (F) 48 33 1996
SUNRISE AND SUNSET
MAY 1 2026...........SUNRISE 6:12 AM EDT SUNSET 8:03 PM EDT
MAY 2 2026...........SUNRISE 6:11 AM EDT SUNSET 8:04 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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