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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

Weather Station Details

Years	Station	Coordinates
1948–2022	Key West International Airport	location