731
CDUS41 KLWX 240621
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
221 AM EDT FRI JUL 24 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 23 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 81 5:19 PM 99 1991 88 -7 86
2011
MINIMUM 61 11:44 PM 50 1977 67 -6 69
1983
AVERAGE 71 77 -6 78
PRECIPITATION (IN)
YESTERDAY 0.00 1.51 1988 0.13 -0.13 0.00
MONTH TO DATE 5.34 3.13 2.21 1.83
SINCE JUN 1 9.63 7.43 2.20 8.76
SINCE JAN 1 24.55 24.67 -0.12 22.68
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 6 12 -6 13
MONTH TO DATE 350 274 76 335
SINCE JUN 1 628 512 116 656
SINCE JAN 1 801 618 183 774
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 6.1
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 11:00 PM
LOWEST 36 4:00 PM
AVERAGE 57
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 99 2010
MINIMUM TEMPERATURE (F) 67 48 1985
SUNRISE AND SUNSET
JULY 24 2026..........SUNRISE 6:04 AM EDT SUNSET 8:28 PM EDT
JULY 25 2026..........SUNRISE 6:05 AM EDT SUNSET 8:28 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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