620
CDUS41 KLWX 120624
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT FRI SEP 12 2025
...............................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 11 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 81 2:35 PM 98 1983 82 -1 86
MINIMUM 66 4:52 AM 40 1917 66 0 64
AVERAGE 74 74 0 75
PRECIPITATION (IN)
YESTERDAY T 1.85 1882 0.13 -0.13 0.00
MONTH TO DATE 2.50 1.41 1.09 0.02
SINCE SEP 1 2.50 1.41 1.09 0.02
SINCE JAN 1 29.76 29.32 0.44 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 9 9 0 10
MONTH TO DATE 74 118 -44 72
SINCE SEP 1 74 118 -44 72
SINCE JAN 1 1539 1570 -31 1787
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1:00 AM
LOWEST 54 3:00 PM
AVERAGE 74
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THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 2019
MINIMUM TEMPERATURE (F) 66 41 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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