Climatological Report (Daily)
Issued by NWS
Issued by NWS
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736
CDUS42 KKEY 210535
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
135 AM EDT THU AUG 21 2025
...................................
...THE MARATHON CLIMATE SUMMARY FOR AUGUST 20 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 93 223 PM 95 2010 92 1 91
2012
2022
MINIMUM 82 350 AM 70 1963 80 2 80
AVERAGE 88 86 2 86
PRECIPITATION (IN)
YESTERDAY 0.00 2.96 2023 0.16 -0.16 0.15
MONTH TO DATE 2.56 3.23 -0.67 4.85
SINCE JUN 1 10.24 11.23 -0.99 15.56
SINCE JAN 1 15.68 21.37 -5.69 31.17
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 23 21 2 21
MONTH TO DATE 420 420 0 429
SINCE JUN 1 1627 1627 0 1684
SINCE JAN 1 3311 3250 61 3450
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 5.0
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 82
LOWEST 58
AVERAGE 70
..........................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 92 97 1952
MINIMUM TEMPERATURE (F) 80 71 1975
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 701 AM EDT SUNSET 753 PM EDT
AUGUST 22 2025........SUNRISE 702 AM EDT SUNSET 752 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$