491
CDUS41 KLWX 182129
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
529 PM EDT THU SEP 18 2025
...............................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 18 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 81 3:47 PM 91 1898 80 1 77
1921
1927
MINIMUM 65 5:54 AM 45 1937 63 2 70
AVERAGE 73 72 1 74
PRECIPITATION (IN)
TODAY T 2.28 2003 0.14 -0.14 0.33
MONTH TO DATE 3.36 2.38 0.98 0.45
SINCE SEP 1 3.36 2.38 0.98 0.45
SINCE JAN 1 30.62 30.29 0.33 29.54
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 7 1 9
MONTH TO DATE 119 175 -56 137
SINCE SEP 1 119 175 -56 137
SINCE JAN 1 1584 1627 -43 1852
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 7.0
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 AM
LOWEST 62 3:00 PM
AVERAGE 78
......................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 96 1895
MINIMUM TEMPERATURE (F) 63 44 1916
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 6:52 AM EDT SUNSET 7:11 PM EDT
SEPTEMBER 19 2025.....SUNRISE 6:53 AM EDT SUNSET 7:09 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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