National Weather Service Text Product
AFOS product CLIMTH
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIMTH
Product Timestamp: 2025-12-12 21:16 UTC
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115
CDUS42 KKEY 122116
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
416 PM EST FRI DEC 12 2025
...................................
...THE MARATHON CLIMATE SUMMARY FOR DECEMBER 12 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 77 400 PM 87 2016 78 -1 73
MINIMUM 68 703 AM 42 1957 68 0 59
AVERAGE 73 73 0 66
PRECIPITATION (IN)
TODAY 0.00 0.69 1983 0.08 -0.08 0.00
MONTH TO DATE 0.73 0.93 -0.20 0.02
SINCE DEC 1 0.73 0.93 -0.20 0.02
SINCE JAN 1 37.69 38.45 -0.76 46.62
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JUL 1 5 1 4 0
COOLING
TODAY 8 9 -1 1
MONTH TO DATE 135 111 24 67
SINCE DEC 1 135 111 24 67
SINCE JAN 1 5030 4982 48 5300
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 7.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78
LOWEST 62
AVERAGE 70
..........................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 87 1961
1986
MINIMUM TEMPERATURE (F) 68 42 1962
SUNRISE AND SUNSET
DECEMBER 12 2025......SUNRISE 659 AM EST SUNSET 537 PM EST
DECEMBER 13 2025......SUNRISE 700 AM EST SUNSET 537 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$