824
CDUS41 KLWX 090621
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
221 AM EDT TUE SEP 09 2025
...............................
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 8 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 76 3:25 PM 100 1939 83 -7 76
MINIMUM 57 5:57 AM 52 1988 67 -10 57
AVERAGE 67 75 -8 67
PRECIPITATION (IN)
YESTERDAY 0.00 2.93 1969 0.13 -0.13 0.00
MONTH TO DATE 2.30 1.02 1.28 0.02
SINCE SEP 1 2.30 1.02 1.28 0.02
SINCE JAN 1 29.56 28.93 0.63 29.11
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 2 10 -8 2
MONTH TO DATE 62 89 -27 51
SINCE SEP 1 62 89 -27 51
SINCE JAN 1 1527 1541 -14 1766
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WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 7.0
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67 11:00 PM
LOWEST 29 3:00 PM
AVERAGE 48
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THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 98 1872
MINIMUM TEMPERATURE (F) 67 48 1901
SUNRISE AND SUNSET
SEPTEMBER 9 2025.....SUNRISE 6:44 AM EDT SUNSET 7:25 PM EDT
SEPTEMBER 10 2025.....SUNRISE 6:45 AM EDT SUNSET 7:24 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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