Climatological Report (Daily)
Issued by NWS
Issued by NWS
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753
CDUS42 KKEY 190536
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
136 AM EDT SAT SEP 19 2026
...................................
...THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 18 2026...
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)
YESTERDAY
MAXIMUM 88 252 PM 95 1989 90 -2 84
MINIMUM 78 842 PM 68 1956 78 0 76
AVERAGE 83 84 -1 80
PRECIPITATION (IN)
YESTERDAY 0.53 2.89 1985 0.24 0.29 1.32
MONTH TO DATE 1.46 3.74 -2.28 7.06
SINCE SEP 1 1.46 3.74 -2.28 7.06
SINCE JAN 1 17.33 27.20 -9.87 23.66
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 18 19 -1 15
MONTH TO DATE 373 352 21 321
SINCE SEP 1 373 352 21 321
SINCE JAN 1 3846 3822 24 3869
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94
LOWEST 72
AVERAGE 83
..........................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 96 2023
MINIMUM TEMPERATURE (F) 78 67 1954
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.
$$