Climatological Report (Daily)
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344
CDUS42 KKEY 102131
CLIMTH

CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
531 PM EDT THU SEP 10 2026

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

...THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 10 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         88    249 PM  95    1993  90     -2       88
  MINIMUM         82    157 AM  67    1953  79      3       78
  AVERAGE         85                        84      1       83

PRECIPITATION (IN)
  TODAY            0.06          2.63 1956   0.20  -0.14     0.01
  MONTH TO DATE    0.55                      2.03  -1.48     3.64
  SINCE SEP 1      0.55                      2.03  -1.48     3.64
  SINCE JAN 1     16.42                     25.49  -9.07    20.24

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           20                        20      0       18
  MONTH TO DATE  212                       200     12      185
  SINCE SEP 1    212                       200     12      185
  SINCE JAN 1   3685                      3670     15     3733
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     8.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  THUNDERSTORM
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    91
 LOWEST     70
 AVERAGE    81

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


THE MARATHON CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   90        96      2022
                                             2023
 MINIMUM TEMPERATURE (F)   79        69      1956


SUNRISE AND SUNSET
SEPTEMBER 10 2026.....SUNRISE   709 AM EDT   SUNSET   733 PM EDT
SEPTEMBER 11 2026.....SUNRISE   709 AM EDT   SUNSET   732 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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