Key West January Weather

Typical Key West January Weather 1991–2020
Average daily high	75.2 °F
Average daily low	65.0 °F
Average monthly precipitation	1.8 inches

Key West January Weather Records 1948–2023
Highest temperature	86 °F	January 29, 1991
Lowest temperature	41 °F	January 13, 1981
Highest daily low	78 °F	January 3, 2020
Lowest daily high	52 °F	January 10, 2010
Hottest average temperature	6.5 °F above average	1974
Coldest average temperature	-9.0 °F below average	1981
Most daily precipitation	6.4 inches	January 22, 1983
Most monthly precipitation	17.6 inches	1983

Day	Average (°F)		Record (°F)
	High	Low	High	Low
January 1	75.8	66.3	84	51
January 2	75.8	66.2	84	51
January 3	75.7	66.1	84	45
January 4	75.6	66.0	83	50
January 5	75.6	65.9	83	46
January 6	75.6	65.7	83	49
January 7	75.5	65.6	85	47
January 8	75.3	65.5	83	47
January 9	75.3	65.4	82	48
January 10	75.3	65.4	84	45
January 11	75.3	65.3	83	42
January 12	75.2	65.2	84	48
January 13	75.2	65.1	83	41
January 14	75.2	65.1	82	47
January 15	75.1	65.0	83	47
January 16	75.1	64.9	85	48
January 17	75.0	64.8	82	53
January 18	75.0	64.7	85	48
January 19	75.1	64.8	82	48
January 20	75.2	64.9	83	46
January 21	75.2	64.9	82	46
January 22	75.2	64.9	85	48
January 23	75.2	65.0	84	47
January 24	75.3	65.1	83	45
January 25	75.3	65.1	84	50
January 26	75.3	65.1	82	50
January 27	75.3	65.1	84	52
January 28	75.3	65.0	84	47
January 29	75.3	65.1	86	46
January 30	75.4	65.1	85	49
January 31	75.4	65.1	85	47