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Key West Weather Records

Key West, Florida Weather averages and records from 1948–2022 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Key West, Florida was 95 °F which occurred on September 20, 2018.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Key West, Florida was 41 °F which occurred on January 13, 1981.
Lowest Temperatures: All-Time By Year
Key West Weather by Month
Averages based on the years 1991–2020
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
☀️ Average high (°F) 75.2 76.9 79.0 82.1 85.3 88.2 89.7 90.0 88.5 85.2 80.4 77.1 83.2
🌙 Average low (°F) 65.0 66.8 68.8 72.7 76.0 79.0 80.3 80.2 79.0 76.6 71.9 67.9 73.7
☀️ Record high (°F) 86 85 88 90 94 94 95 95 95 93 89 88 95
🌙 Record low (°F) 41 45 47 48 63 68 69 68 69 60 49 44 41
💧 Average precipitation (inches) 1.8 1.5 1.5 2.1 3.1 4.2 3.6 5.4 7.0 5.7 2.0 2.2 40.1
More Key West Weather Records
1948–2022
Highest daily low 87 °F August 4, 2007
Lowest daily high 52 °F January 10, 2010
Greatest daily range
(Difference of high and low)
28 °F February 27, 1989
Difference in high temperature
over two conscutive days
22 °F Jan 23–24, 2003
Most daily precipitation 22.8 inches November 11, 1980
Most monthly precipitation 27.7 inches November 1980
Most yearly precipitation 63.0 inches 1969
Most days in a year ≥ 80 °F 312 2019
Most days in a year ≥ 90 °F 98 2009
Key West Weather Streaks
Most consecutive days...
With precipitation 11 days Nov 5–15, 2020
Without precipitation 48 days Dec 25, 1989 – Feb 10, 1990
High temperature ≥ 80 °F 234 days Mar 28 – Nov 16, 2019
High temperature ≥ 90 °F 45 days Jul 21 – Sep 3, 1990
Facts About Key West Weather
Key West Weather by Year
More
Weather Station Details
Years Station Coordinates
1948–2022 Key West International Airport location