Climatological Report (Daily)
Issued by NWS
Issued by NWS
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621
CDUS42 KKEY 190533
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
133 AM EDT TUE AUG 19 2025
...................................
...THE MARATHON CLIMATE SUMMARY FOR AUGUST 18 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1950 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 93 242 PM 96 1991 92 1 90
MINIMUM 80 551 AM 70 2007 80 0 79
AVERAGE 87 86 1 85
PRECIPITATION (IN)
YESTERDAY 0.00 6.61 2008 0.17 -0.17 1.23
MONTH TO DATE 2.56 2.90 -0.34 4.68
SINCE JUN 1 10.24 10.90 -0.66 15.39
SINCE JAN 1 15.68 21.04 -5.36 31.00
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 22 21 1 20
MONTH TO DATE 374 378 -4 385
SINCE JUN 1 1581 1585 -4 1640
SINCE JAN 1 3265 3208 57 3406
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 2.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82
LOWEST 54
AVERAGE 68
..........................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 92 96 2022
MINIMUM TEMPERATURE (F) 80 73 1955
1963
1989
SUNRISE AND SUNSET
AUGUST 19 2025........SUNRISE 700 AM EDT SUNSET 755 PM EDT
AUGUST 20 2025........SUNRISE 701 AM EDT SUNSET 754 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$