Climatological Report (Daily)
Issued by NWS
Issued by NWS
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816
CDUS42 KKEY 112144
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
544 PM EDT TUE AUG 11 2026
...................................
...THE MARATHON CLIMATE SUMMARY FOR AUGUST 11 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 90 405 PM 97 1985 92 -2 88
1987
MINIMUM 84 603 AM 70 1953 80 4 79
AVERAGE 87 86 1 84
PRECIPITATION (IN)
TODAY 0.00 2.23 1966 0.16 -0.16 0.33
MONTH TO DATE 0.32 1.71 -1.39 2.41
SINCE JUN 1 4.83 9.71 -4.88 10.09
SINCE JAN 1 15.68 19.85 -4.17 15.53
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 22 21 1 19
MONTH TO DATE 232 231 1 226
SINCE JUN 1 1476 1438 38 1433
SINCE JAN 1 3048 3061 -13 3117
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 9.1
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 68
AVERAGE 77
..........................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 92 95 1968
2004
MINIMUM TEMPERATURE (F) 80 73 1952
2004
SUNRISE AND SUNSET
AUGUST 11 2026........SUNRISE 657 AM EDT SUNSET 802 PM EDT
AUGUST 12 2026........SUNRISE 657 AM EDT SUNSET 801 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$