Climatological Report (Daily)
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893
CDUS42 KKEY 192131
CLIMTH

CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
531 PM EDT SAT SEP 19 2026

...................................

...THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 19 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         86    342 PM  96    2023  90     -4       88
  MINIMUM         79    747 AM  67    1954  78      1       76
  AVERAGE         83                        84     -1       82

PRECIPITATION (IN)
  TODAY            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
  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           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     6.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    91
 LOWEST     70
 AVERAGE    81

..........................................................


THE MARATHON CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   90        95      1987
                                             2023
 MINIMUM TEMPERATURE (F)   78        69      1956


SUNRISE AND SUNSET
SEPTEMBER 19 2026.....SUNRISE   712 AM EDT   SUNSET   724 PM EDT
SEPTEMBER 20 2026.....SUNRISE   712 AM EDT   SUNSET   723 PM EDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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