400
CDUS42 KKEY 212135
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
435 PM EST WED JAN 21 2026
...............................
..THE MARATHON CLIMATE SUMMARY FOR JANUARY 21 2026
VALID TODAY AS OF 0400 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 72 152 PM 86 2017 76 -4 78
MINIMUM 63 754 AM 47 1971 64 -1 62
AVERAGE 68 70 -2 70
PRECIPITATION (IN)
TODAY 0.00 3.43 1983 0.06 -0.06 T
MONTH TO DATE 0.42 0.99 -0.57 1.29
SINCE DEC 1 1.84 3.19 -1.35 4.07
SINCE JAN 1 0.42 0.99 -0.57 1.29
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 17 21 -4 13
SINCE DEC 1 23 38 -15 14
SINCE JUL 1 28 39 -11 14
COOLING
TODAY 3 6 -3 5
MONTH TO DATE 123 129 -6 94
SINCE DEC 1 425 385 40 324
SINCE JAN 1 123 129 -6 94
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 9.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84
LOWEST 73
AVERAGE 79
......................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 86 2017
MINIMUM TEMPERATURE (F) 64 40 1985
SUNRISE AND SUNSET
JANUARY 21 2026.......SUNRISE 710 AM EST SUNSET 602 PM EST
JANUARY 22 2026.......SUNRISE 710 AM EST SUNSET 602 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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