348
CDUS41 KLWX 300626
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
226 AM EDT TUE JUN 30 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 29 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 88 2:41 PM 102 2012 87 1 92
MINIMUM 68 4:21 AM 47 1970 65 3 70
AVERAGE 78 76 2 81
PRECIPITATION (IN)
YESTERDAY 0.00 2.70 1975 0.14 -0.14 T
MONTH TO DATE 4.29 4.16 0.13 6.93
SINCE JUN 1 4.29 4.16 0.13 6.93
SINCE JAN 1 19.21 21.40 -2.19 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 13 11 2 16
MONTH TO DATE 264 227 37 304
SINCE JUN 1 264 227 37 304
SINCE JAN 1 437 333 104 422
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WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 3.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 3:00 AM
LOWEST 53 5:00 PM
AVERAGE 77
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 98 1964
MINIMUM TEMPERATURE (F) 66 51 1989
SUNRISE AND SUNSET
JUNE 30 2026..........SUNRISE 5:48 AM EDT SUNSET 8:39 PM EDT
JULY 1 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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