983
CDUS42 KKEY 172142
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
542 PM EDT THU SEP 17 2026
...............................
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 17 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 1005 AM 97 2023 90 -2 85
MINIMUM 78 108 PM 71 1957 78 0 75
AVERAGE 83 84 -1 80
PRECIPITATION (IN)
TODAY 0.16 2.17 2022 0.22 -0.06 0.37
MONTH TO DATE 0.93 3.50 -2.57 5.74
SINCE SEP 1 0.93 3.50 -2.57 5.74
SINCE JAN 1 16.80 26.96 -10.16 22.34
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 15
MONTH TO DATE 355 333 22 306
SINCE SEP 1 355 333 22 306
SINCE JAN 1 3828 3803 25 3854
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 7.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88
LOWEST 70
AVERAGE 79
......................................................
THE MARATHON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 95 1989
MINIMUM TEMPERATURE (F) 78 68 1956
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 711 AM EDT SUNSET 726 PM EDT
SEPTEMBER 18 2026.....SUNRISE 712 AM EDT SUNSET 725 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page