Climatological Report (Daily)
Issued by NWS Key West, FL
Issued by NWS Key West, FL
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CDUS42 KKEY 212018
CLIEYW
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
418 PM EDT THU AUG 21 2025
...................................
...THE KEY WEST CLIMATE SUMMARY FOR AUGUST 21 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 90 217 PM 94 1950 91 -1 92
1951
1956
MINIMUM 84 601 AM 71 1923 80 4 85
AVERAGE 87 86 1 89
PRECIPITATION (IN)
TODAY 0.00 1.92 1945 0.17 -0.17 0.00
MONTH TO DATE 2.80 3.33 -0.53 3.08
SINCE JUN 1 10.54 11.19 -0.65 15.54
SINCE JAN 1 22.41 21.28 1.13 30.03
DEGREE DAYS
HEATING
TODAY 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
TODAY 22 20 2 24
MONTH TO DATE 439 439 0 467
SINCE JUN 1 1656 1643 13 1739
SINCE JAN 1 3324 3238 86 3513
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 8.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82
LOWEST 68
AVERAGE 75
..........................................................
THE KEY WEST CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 91 95 1956
2024
MINIMUM TEMPERATURE (F) 80 72 1913
1937
1947
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 704 AM EDT SUNSET 756 PM EDT
AUGUST 22 2025........SUNRISE 705 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.
$$