172
CDUS41 KLWX 122124
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT FRI SEP 12 2025
...............................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 12 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 82 2:38 PM 98 2019 82 0 83
MINIMUM 63 5:39 AM 41 1917 66 -3 66
AVERAGE 73 74 -1 75
PRECIPITATION (IN)
TODAY 0.00 4.02 1934 0.13 -0.13 0.00
MONTH TO DATE 2.50 1.54 0.96 0.02
SINCE SEP 1 2.50 1.54 0.96 0.02
SINCE JAN 1 29.76 29.45 0.31 29.11
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 0 0 0
COOLING
TODAY 8 9 -1 10
MONTH TO DATE 82 127 -45 82
SINCE SEP 1 82 127 -45 82
SINCE JAN 1 1547 1579 -32 1797
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 AM
LOWEST 33 2:00 PM
AVERAGE 62
......................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 94 1915
1925
MINIMUM TEMPERATURE (F) 65 44 1917
SUNRISE AND SUNSET
SEPTEMBER 12 2025.....SUNRISE 6:47 AM EDT SUNSET 7:21 PM EDT
SEPTEMBER 13 2025.....SUNRISE 6:48 AM EDT SUNSET 7:19 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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