666
CDUS41 KLWX 012124
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT TUE SEP 01 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 1 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 94 3:59 PM 98 1962 84 10 81
1980
MINIMUM 74 6:05 AM 49 1970 63 11 50
1976
AVERAGE 84 73 11 66
PRECIPITATION (IN)
TODAY T 2.76 2006 0.12 -0.12 0.00
MONTH TO DATE T 0.12 -0.12 0.00
SINCE SEP 1 T 0.12 -0.12 0.00
SINCE JAN 1 29.40 29.34 0.06 24.64
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 SEP 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 SEP 1 0 0 0 0
SINCE JUL 1 0 1 -1 2
COOLING
TODAY 19 8 11 1
MONTH TO DATE 19 8 11 1
SINCE SEP 1 19 8 11 1
SINCE JAN 1 1299 1064 235 1149
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 12:00 AM
LOWEST 48 3:00 PM
AVERAGE 71
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 99 1980
MINIMUM TEMPERATURE (F) 63 44 1970
SUNRISE AND SUNSET
SEPTEMBER 1 2026.....SUNRISE 6:39 AM EDT SUNSET 7:40 PM EDT
SEPTEMBER 2 2026.....SUNRISE 6:40 AM EDT SUNSET 7:39 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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