Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS42 KKEY 200532
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
132 AM EDT SUN SEP 20 2026
...................................
...THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 19 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1950 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 423 PM 96 2023 90 -4 88
MINIMUM 79 747 AM 67 1954 78 1 76
AVERAGE 83 84 -1 82
PRECIPITATION (IN)
YESTERDAY 0.00 3.56 2001 0.22 -0.22 0.02
MONTH TO DATE 1.46 3.96 -2.50 7.08
SINCE SEP 1 1.46 3.96 -2.50 7.08
SINCE JAN 1 17.33 27.42 -10.09 23.68
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 18 19 -1 17
MONTH TO DATE 391 371 20 338
SINCE SEP 1 391 371 20 338
SINCE JAN 1 3864 3841 23 3886
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 91
LOWEST 68
AVERAGE 80
..........................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 95 1987
2023
MINIMUM TEMPERATURE (F) 78 69 1956
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 712 AM EDT SUNSET 723 PM EDT
SEPTEMBER 21 2026.....SUNRISE 713 AM EDT SUNSET 722 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$