335
CDUS41 KLWX 290640
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
240 AM EDT MON JUN 29 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 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 76 6:21 PM 97 1966 86 -10 90
MINIMUM 69 9:21 PM 44 1970 65 4 70
AVERAGE 73 76 -3 80
PRECIPITATION (IN)
YESTERDAY 1.99R 1.06 1983 0.14 1.85 0.01
MONTH TO DATE 4.29 4.02 0.27 6.93
SINCE JUN 1 4.29 4.02 0.27 6.93
SINCE JAN 1 19.21 21.26 -2.05 20.85
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 JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 13.6 21.0 -7.4 15.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 1 11 -10 15
SINCE JUN 1 1 11 -10 15
SINCE JUL 1 4412 4603 -191 4106
COOLING
YESTERDAY 8 11 -3 15
MONTH TO DATE 251 216 35 288
SINCE JUN 1 251 216 35 288
SINCE JAN 1 424 322 102 406
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WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 3.9
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 9:00 AM
LOWEST 85 5:00 PM
AVERAGE 93
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 102 2012
MINIMUM TEMPERATURE (F) 65 47 1970
SUNRISE AND SUNSET
JUNE 29 2026..........SUNRISE 5:47 AM EDT SUNSET 8:39 PM EDT
JUNE 30 2026..........SUNRISE 5:48 AM EDT SUNSET 8:39 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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