Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS42 KKEY 220540
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
140 AM EDT MON SEP 22 2025
...................................
...THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 21 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1950 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM MM MM 96 1987 90 MM 90
MINIMUM MM MM 70 1956 78 MM 78
1959
AVERAGE MM 84 MM 84
PRECIPITATION (IN)
YESTERDAY 0.03 4.44 1959 0.23 -0.20 0.09
MONTH TO DATE 7.22 4.43 2.79 1.70
SINCE SEP 1 7.22 4.43 2.79 1.70
SINCE JAN 1 23.82 27.89 -4.07 36.83
DEGREE DAYS
HEATING
YESTERDAY MM 0 MM 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY MM 19 MM 19
MONTH TO DATE 272 409 -137 454
SINCE SEP 1 272 409 -137 454
SINCE JAN 1 3820 3879 -59 4122
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 7.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82
LOWEST 70
AVERAGE 76
..........................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 94 1987
MINIMUM TEMPERATURE (F) 78 66 1959
SUNRISE AND SUNSET
SEPTEMBER 22 2025.....SUNRISE 713 AM EDT SUNSET 720 PM EDT
SEPTEMBER 23 2025.....SUNRISE 713 AM EDT SUNSET 719 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$