451
CDUS41 KLWX 120627
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 AM EDT SUN JUL 12 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 11 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 4:36 PM 98 1988 88 0 90
MINIMUM 70 9:18 PM 52 1983 67 3 69
AVERAGE 79 77 2 80
PRECIPITATION (IN)
YESTERDAY 0.70 3.71 2013 0.13 0.57 0.33
MONTH TO DATE 3.46 1.49 1.97 1.17
SINCE JUN 1 7.75 5.79 1.96 8.10
SINCE JAN 1 22.67 23.03 -0.36 22.02
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 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 1 13 -12 15
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 14 12 2 15
MONTH TO DATE 187 130 57 156
SINCE JUN 1 465 368 97 477
SINCE JAN 1 638 474 164 595
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WIND (MPH)
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 6.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 12:00 AM
LOWEST 53 3:00 PM
AVERAGE 75
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 97 1986
MINIMUM TEMPERATURE (F) 67 47 2002
SUNRISE AND SUNSET
JULY 12 2026..........SUNRISE 5:55 AM EDT SUNSET 8:36 PM EDT
JULY 13 2026..........SUNRISE 5:55 AM EDT SUNSET 8:36 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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