688
CDUS41 KLWX 090625
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
225 AM EDT THU JUL 09 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 8 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 82 4:40 PM 101 2012 88 -6 95
MINIMUM 71 7:57 AM 48 1983 67 4 72
1984
AVERAGE 77 77 0 84
PRECIPITATION (IN)
YESTERDAY 0.44 1.96 2005 0.14 0.30 0.21
MONTH TO DATE 1.30 1.09 0.21 0.62
SINCE JUN 1 5.59 5.39 0.20 7.55
SINCE JAN 1 20.51 22.63 -2.12 21.47
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 12 12 0 19
MONTH TO DATE 146 94 52 110
SINCE JUN 1 424 332 92 431
SINCE JAN 1 597 438 159 549
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 4.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 3:00 AM
LOWEST 72 4:00 PM
AVERAGE 85
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 99 1988
1993
MINIMUM TEMPERATURE (F) 67 48 1984
SUNRISE AND SUNSET
JULY 9 2026..........SUNRISE 5:53 AM EDT SUNSET 8:37 PM EDT
JULY 10 2026..........SUNRISE 5:53 AM EDT SUNSET 8:37 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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