Climatological Report (Daily)
Issued by NWS
Issued by NWS
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976
CDUS42 KKEY 180526
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
126 AM EDT TUE AUG 18 2026
...................................
...THE MARATHON CLIMATE SUMMARY FOR AUGUST 17 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 89 249 PM 96 1993 92 -3 89
MINIMUM 79 1150 PM 70 1953 80 -1 79
AVERAGE 84 86 -2 84
PRECIPITATION (IN)
YESTERDAY 0.00 0.60 1989 0.17 -0.17 0.09
MONTH TO DATE 0.40 2.73 -2.33 2.56
SINCE JUN 1 4.91 10.73 -5.82 10.24
SINCE JAN 1 15.76 20.87 -5.11 15.68
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 19 21 -2 19
MONTH TO DATE 353 357 -4 352
SINCE JUN 1 1597 1564 33 1559
SINCE JAN 1 3169 3187 -18 3243
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 5.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87
LOWEST 63
AVERAGE 75
..........................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 92 96 1991
MINIMUM TEMPERATURE (F) 80 70 2007
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 700 AM EDT SUNSET 756 PM EDT
AUGUST 19 2026........SUNRISE 700 AM EDT SUNSET 755 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$