Climatological Report (Daily)
Issued by NWS
Issued by NWS
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999
CDUS42 KKEY 212018
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
418 PM EDT THU AUG 21 2025
...................................
...THE MARATHON CLIMATE SUMMARY FOR AUGUST 21 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 92 242 PM 97 1952 92 0 90
MINIMUM 85 613 AM 71 1975 80 5 83
AVERAGE 89 86 3 87
PRECIPITATION (IN)
TODAY 0.00 1.08 2006 0.17 -0.17 0.00
MONTH TO DATE 2.56 3.40 -0.84 4.85
SINCE JUN 1 10.24 11.40 -1.16 15.56
SINCE JAN 1 15.68 21.54 -5.86 31.17
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 24 21 3 22
MONTH TO DATE 444 441 3 451
SINCE JUN 1 1651 1648 3 1706
SINCE JAN 1 3335 3271 64 3472
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 5.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75
LOWEST 60
AVERAGE 68
..........................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 92 98 1952
MINIMUM TEMPERATURE (F) 80 71 1953
1954
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 701 AM EDT SUNSET 753 PM EDT
AUGUST 22 2025........SUNRISE 702 AM EDT SUNSET 752 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$