639
CDUS41 KLWX 102121
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
521 PM EDT FRI JUL 10 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 10 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 86 3:47 PM 99 1988 88 -2 87
1993
MINIMUM 68 4:38 AM 53 1963 67 1 71
AVERAGE 77 77 0 79
PRECIPITATION (IN)
TODAY T 1.63 1995 0.14 -0.14 T
MONTH TO DATE 2.74 1.36 1.38 0.84
SINCE JUN 1 7.03 5.66 1.37 7.77
SINCE JAN 1 21.95 22.90 -0.95 21.69
SNOWFALL (IN)
TODAY 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
TODAY 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
TODAY 12 12 0 14
MONTH TO DATE 173 118 55 141
SINCE JUN 1 451 356 95 462
SINCE JAN 1 624 462 162 580
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 3.2
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 63 11:00 AM
AVERAGE 82
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 98 1988
MINIMUM TEMPERATURE (F) 67 52 1983
SUNRISE AND SUNSET
JULY 10 2026..........SUNRISE 5:53 AM EDT SUNSET 8:37 PM EDT
JULY 11 2026..........SUNRISE 5:54 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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