306
CDUS41 KLWX 202123
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
523 PM EDT SAT SEP 20 2025
...............................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 20 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 77 3:00 PM 94 1895 79 -2 86
MINIMUM 68 7:26 AM 41 1916 63 5 65
AVERAGE 73 71 2 76
PRECIPITATION (IN)
TODAY T 1.43 1938 0.13 -0.13 0.00
MONTH TO DATE 3.36 2.65 0.71 0.45
SINCE SEP 1 3.36 2.65 0.71 0.45
SINCE JAN 1 30.62 30.56 0.06 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 1 -1 0
MONTH TO DATE 0 1 -1 0
SINCE SEP 1 0 1 -1 0
SINCE JUL 1 0 1 -1 0
COOLING
TODAY 8 6 2 11
MONTH TO DATE 140 188 -48 161
SINCE SEP 1 140 188 -48 161
SINCE JAN 1 1605 1640 -35 1876
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 9.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 1:00 AM
LOWEST 59 8:00 AM
AVERAGE 71
......................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 96 1895
MINIMUM TEMPERATURE (F) 62 41 1956
SUNRISE AND SUNSET
SEPTEMBER 20 2025.....SUNRISE 6:54 AM EDT SUNSET 7:08 PM EDT
SEPTEMBER 21 2025.....SUNRISE 6:55 AM EDT SUNSET 7:06 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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