231
CDUS41 KLWX 130621
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
221 AM EDT SAT SEP 13 2025
...............................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 12 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 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)
YESTERDAY 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)
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 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
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (100)
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 YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 AM
LOWEST 33 2:00 PM
AVERAGE 62
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THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 94 1915
1925
MINIMUM TEMPERATURE (F) 65 44 1917
SUNRISE AND SUNSET
SEPTEMBER 13 2025.....SUNRISE 6:48 AM EDT SUNSET 7:19 PM EDT
SEPTEMBER 14 2025.....SUNRISE 6:49 AM EDT SUNSET 7:17 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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