240
CDUS41 KLWX 110624
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT FRI SEP 11 2026
...............................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 10 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 91 3:13 PM 98 1983 83 8 70
MINIMUM 74 3:20 AM 44 1883 66 8 61
AVERAGE 83 74 9 66
PRECIPITATION (IN)
YESTERDAY 0.00 2.88 2020 0.13 -0.13 0.20
MONTH TO DATE 1.58 1.28 0.30 2.50
SINCE SEP 1 1.58 1.28 0.30 2.50
SINCE JAN 1 23.14 29.19 -6.05 29.76
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 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
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 18 10 8 1
MONTH TO DATE 150 109 41 65
SINCE SEP 1 150 109 41 65
SINCE JAN 1 1759 1561 198 1530
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 7.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 7:00 AM
LOWEST 50 3:00 PM
AVERAGE 61
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THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 1983
MINIMUM TEMPERATURE (F) 66 40 1917
SUNRISE AND SUNSET
SEPTEMBER 11 2026.....SUNRISE 6:46 AM EDT SUNSET 7:23 PM EDT
SEPTEMBER 12 2026.....SUNRISE 6:47 AM EDT SUNSET 7:21 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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