514
CDUS41 KLWX 232140
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
540 PM EDT THU JUL 23 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 23 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 80 3:59 PM 99 1991 88 -8 86
2011
MINIMUM 64 5:51 AM 50 1977 67 -3 69
1983
AVERAGE 72 77 -5 78
PRECIPITATION (IN)
TODAY 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)
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 7 12 -5 13
MONTH TO DATE 351 274 77 335
SINCE JUN 1 629 512 117 656
SINCE JAN 1 802 618 184 774
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 7.9
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 6:00 AM
LOWEST 36 4:00 PM
AVERAGE 52
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 99 2010
MINIMUM TEMPERATURE (F) 67 48 1985
SUNRISE AND SUNSET
JULY 23 2026..........SUNRISE 6:03 AM EDT SUNSET 8:29 PM EDT
JULY 24 2026..........SUNRISE 6:04 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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