National Weather Service Text Product
AFOS product CLIMTH
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIMTH
Product Timestamp: 2025-09-08 20:22 UTC
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529
CDUS42 KKEY 082022
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
422 PM EDT MON SEP 08 2025
...................................
...THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 8 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 89 107 PM 95 2022 91 -2 90
MINIMUM 79 424 AM 71 1956 79 0 85
AVERAGE 84 85 -1 88
PRECIPITATION (IN)
TODAY 0.00 1.25 2007 0.21 -0.21 0.00
MONTH TO DATE 3.33 1.63 1.70 0.56
SINCE SEP 1 3.33 1.63 1.70 0.56
SINCE JAN 1 19.93 25.09 -5.16 35.69
DEGREE DAYS
HEATING
TODAY 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
TODAY 19 20 -1 23
MONTH TO DATE 90 160 -70 173
SINCE SEP 1 90 160 -70 173
SINCE JAN 1 3638 3630 8 3841
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 4.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85
LOWEST 67
AVERAGE 76
..........................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 95 1987
MINIMUM TEMPERATURE (F) 79 71 1954
1988
1991
SUNRISE AND SUNSET
SEPTEMBER 8 2025.....SUNRISE 708 AM EDT SUNSET 735 PM EDT
SEPTEMBER 9 2025.....SUNRISE 708 AM EDT SUNSET 734 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$