206
CDUS41 KLWX 290625
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
225 AM EDT WED APR 29 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 28 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 63 4:39 PM 88 1983 71 -8 74
1990
2021
MINIMUM 49 4:56 AM 32 1972 48 1 38
1993
AVERAGE 56 59 -3 56
PRECIPITATION (IN)
YESTERDAY T 1.68 2002 0.13 -0.13 0.00
MONTH TO DATE 1.15 3.21 -2.06 1.92
SINCE MAR 1 4.00 6.71 -2.71 3.34
SINCE JAN 1 9.80 12.26 -2.46 7.76
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 9 7 2 9
MONTH TO DATE 190 307 -117 241
SINCE MAR 1 632 954 -322 691
SINCE JUL 1 4261 4464 -203 4013
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 70 17 53 19
SINCE MAR 1 86 19 67 36
SINCE JAN 1 86 19 67 36
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 9:00 PM
LOWEST 58 2:00 PM
AVERAGE 70
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 91 2024
MINIMUM TEMPERATURE (F) 48 32 1987
SUNRISE AND SUNSET
APRIL 29 2026.........SUNRISE 6:14 AM EDT SUNSET 8:01 PM EDT
APRIL 30 2026.........SUNRISE 6:13 AM EDT SUNSET 8:02 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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