735
CDUS41 KLWX 032123
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
523 PM EDT THU SEP 03 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 3 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 92 3:59 PM 99 2023 84 8 83
MINIMUM 70 4:51 AM 45 1967 62 8 51
AVERAGE 81 73 8 67
PRECIPITATION (IN)
TODAY 0.00 1.47 1969 0.13 -0.13 0.00
MONTH TO DATE T 0.37 -0.37 0.00
SINCE SEP 1 T 0.37 -0.37 0.00
SINCE JAN 1 29.40 29.59 -0.19 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 16 8 8 2
MONTH TO DATE 53 24 29 3
SINCE SEP 1 53 24 29 3
SINCE JAN 1 1333 1080 253 1151
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 5.6
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 52 4:00 PM
AVERAGE 75
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 99 2023
MINIMUM TEMPERATURE (F) 62 48 1997
SUNRISE AND SUNSET
SEPTEMBER 3 2026.....SUNRISE 6:41 AM EDT SUNSET 7:37 PM EDT
SEPTEMBER 4 2026.....SUNRISE 6:41 AM EDT SUNSET 7:35 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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