Key West, FL: Summer

31 August 2026: Summer 2026 averaged 85.7°F in Key West, FL, the warmest summer since 2024, 5th warmest of 152.

Summer 2026

Mean temperature: 85.7°F; Warmest since 2024; 5th warmest of 152
Precipitation: 12.41 in; Driest since 2025; 77th driest of 156

A normal summer in Key West, FL (1991 to 2020): a mean temperature of 84.6°F, between 83.6°F and 85.4°F in eight years of ten and 13.08 in of precipitation, between 8.00 in and 17.78 in in eight years of ten.

The mean temperature of every summer in Key West, FL since 1874: 85.7°F in 2026; the highest is 86.8°F, in 2023.

Normal range, 83.6 to 85.4°F

Every year, ranked, as a table

Every summer in Key West, FL from 1871 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	85.7	5	89.7	33	81.7	3	12.41	80	0
2025	85	18	89.3	50	80.7	11	12.33	81	0
2024	85.8	3	90.2	18	81.4	4	21.50	7	0
2023	86.8	1	91.2	5	82.5	1	10.62	103	0
2022	84.3	49	88.5	85	80	22	11.31	92	0
2021	83.8	71	88	102	79.7	32	14.37	51	0
2020	86.1	2	90.2	18	82	2	16.41	31	0
2019	85.4	7	89.7	33	81.1	6	8.07	140	0
2018	85.3	10	90.1	21	80.4	15	7.38	146	0
2017	85.1	14	89.1	59	81.2	5	11.19	96	0
2016	84.5	41	89.2	52	79.7	32	13.69	61	0
2015	85.1	14	89.6	35	80.7	11	10.08	109	0
2014	85.4	7	89.6	35	81.1	6	9.29	119	0
2013	83.2	95	87.3	132	79	55	20.72	8	0
2012	82.5	128	86.6	145	78.5	83	20.25	11	0
2011	85	18	89.1	59	80.8	9	13.81	57	0
2010	85.1	14	89.4	46	80.8	9	13.09	66	0
2009	85.2	11	90.4	14	80.1	19	9.17	122	0
2008	84.6	36	89	67	80.2	17	9.00	129	0
2007	85.8	3	90.5	13	81.1	6	8.63	136	0
2006	83.5	81	88.3	95	78.7	70	16.54	29	0
2005	84.6	36	89.2	52	79.9	26	26.20	1	0
2004	84.4	44	89.1	59	79.6	34	10.08	109	0
2003	84.7	34	89.4	46	79.9	26	13.06	69	0
2002	83.7	76	88.5	85	78.9	60	16.61	27	0
2001	83.9	66	88.7	78	79	55	15.81	36	0
2000	83.9	66	89	67	78.8	63	16.18	33	0
1999	83.6	79	88.4	88	78.8	63	17.51	21	0
1998	85.2	11	90.1	21	80.2	17	5.35	152	0
1997	83.9	66	89.1	59	78.7	70	15.37	42	0
1996	83.7	76	88.6	83	78.7	70	12.87	74	0
1995	84.4	44	89.9	27	78.9	60	13.63	62	0
1994	84.3	49	89.6	35	79.1	49	11.21	95	0
1993	85	18	90.2	18	79.8	30	5.96	151	0
1992	84.5	41	89.6	35	79.4	40	16.66	26	0
1991	85	18	90.7	10	79.3	44	12.86	75	0
1990	84.9	24	90.8	9	78.9	60	13.04	70	0
1989	84.4	44	89.6	35	79.1	49	11.00	97	0
1988	83.6	79	88.8	72	78.5	83	15.67	37	0
1987	85	18	90	25	80	22	11.29	93	0
1986	84.1	58	89.1	59	79.1	49	15.51	39	0
1985	84.1	58	89.2	52	79.1	49	10.13	106	0
1984	82.5	128	86.4	150	78.6	73	12.97	72	0
1983	83.1	100	87.8	107	78.4	87	11.25	94	0
1982	84.2	54	88.8	72	79.6	34	13.50	65	0
1981	85	18	89.4	46	80.5	14	10.93	99	0
1980	84.5	41	89.2	52	79.8	30	15.61	38	0
1979	84.9	24	89.8	28	80	22	9.01	128	0
1978	84.9	24	89.8	28	80	22	9.15	123	0
1977	83.3	91	87.6	116	79	55	14.31	53	0
1976	83.1	100	87.7	113	78.4	87	18.14	16	0
1975	84.1	58	89.1	59	79.2	46	13.58	64	0
1974	83.5	81	87.7	113	79.4	40	9.50	116	0
1973	83.2	95	88.1	101	78.2	94	15.50	40	0
1972	83.1	100	87.4	127	78.8	63	22.82	3	0
1971	83.4	86	87.9	103	78.8	63	16.60	28	0
1970	83.3	91	87.3	132	79.2	46	17.68	20	0
1969	84.3	49	88.4	88	80.1	19	16.40	32	0
1968	83.1	100	87.9	103	78.4	87	17.94	17	0
1967	85.1	14	89.6	35	80.6	13	15.08	44	0
1966	82.3	136	86.9	140	77.7	118	22.80	4	0
1965	84.8	31	89.2	52	80.4	15	7.65	144	0
1964	84.1	58	88.8	72	79.5	37	10.47	104	0
1963	84.4	44	89.6	35	79.2	46	13.07	68	0
1962	84.6	36	89.8	28	79.4	40	12.19	82	0
1961	84.1	58	89	67	79.3	44	9.11	125	0
1960	83.7	76	88.8	72	78.6	73	15.18	43	0
1959	83	107	88.2	99	77.9	106	12.11	83	0
1958	84	64	88.8	72	79.1	49	10.77	101	0
1957	85.4	7	92.3	1	78.6	73	8.88	131	0
1956	84.9	24	92	2	77.8	116	3.71	156	0
1955	83.4	86	90.1	21	76.6	149	13.62	63	0
1954	83.8	71	90.6	11	77	142	11.83	86	0
1953	83.2	95	89.4	46	77.1	139	14.78	47	0
1952	83.9	66	89.8	28	77.9	106	12.66	76	0
1951	84.9	24	91.4	3	78.3	91	7.32	148	0
1950	84.4	44	91.2	5	77.7	118	10.10	108	0
1949	83.3	91	88.7	78	77.9	106	14.46	49	0
1948	84.2	54	89.6	35	78.8	63	8.24	139	1
1947	83.2	95	88.4	88	77.9	106	21.84	6	0
1946	83.4	86	88.7	78	78.1	99	15.46	41	0
1945	83.5	81	88.3	95	78.6	73	19.28	14	0
1944	84.8	31	89.5	45	80.1	19	7.97	141	0
1943	84.3	49	89.1	59	79.4	40	8.92	130	0
1942	84.2	54	89.2	52	79.1	49	10.96	98	0
1941	84.1	58	90	25	78.2	94	7.50	145	0
1940	83.8	71	89.1	59	78.6	73	11.44	89	0
1939	83	107	88.6	83	77.5	126	8.85	132	0
1938	83.1	100	88.4	88	77.9	106	8.74	134	0
1937	82.9	111	88.3	95	77.5	126	14.49	48	0
1936	82.5	128	87.7	113	77.2	135	21.99	5	0
1935	83.5	81	89.2	52	77.9	106	16.88	24	0
1934	82.9	111	88.3	95	77.5	126	10.11	107	0
1933	82.9	111	87.9	103	77.8	116	19.11	15	0
1932	83.8	71	89.3	50	78.2	94	13.00	71	0
1931	83	107	88.4	88	77.7	118	10.75	102	0
1930	82.3	136	87.6	116	77.1	139	19.59	12	0
1929	81.9	143	87.1	138	76.8	146	14.39	50	0
1928	83.1	100	88.4	88	77.9	106	9.59	115	0
1927	84.9	24	90.4	14	79.5	37	4.25	154	0
1926	82.8	118	88.5	85	77.2	135	24.88	2	0
1925	83.5	81	88.8	72	78.2	94	6.52	150	0
1924	84.3	49	89.6	35	79	55	9.05	127	0
1923	82.4	134	87.6	116	77.2	135	9.90	113	0
1922	82.6	124	87.8	107	77.3	133	14.19	55	0
1921	82.3	136	87.3	132	77.4	130	14.33	52	0
1920	82.7	123	87.6	116	77.7	118	9.10	126	0
1919	82.5	128	87.5	124	77.4	130	17.75	19	0
1918	83.3	91	88.4	88	78.2	94	4.00	155	0
1917	82.9	111	87.8	107	77.9	106	8.38	138	0
1916	82.3	136	87.4	127	77.1	139	17.79	18	0
1915	83.8	71	89	67	78.6	73	7.81	142	0
1914	83.4	86	88.7	78	78.1	99	4.32	153	0
1913	81.7	149	86.8	142	76.5	150	9.31	118	0
1912	82.5	128	87.5	124	77.5	126	13.09	66	0
1911	82	142	87.4	127	76.7	148	14.82	46	0
1910	82.6	124	87.9	103	77.3	133	6.84	149	0
1909	81.8	145	87.3	132	76.4	151	19.48	13	0
1908	81.8	145	87.6	116	76	153	20.42	9	0
1907	82.9	111	88.2	99	77.7	118	8.80	133	0
1906	82.6	124	87.5	124	77.7	118	11.43	90	0
1905	83.1	100	87.8	107	78.5	83	9.12	124	0
1904	81.8	145	86.7	144	76.9	145	7.34	147	0
1903	83.4	86	88.7	78	78	104	11.85	85	0
1902	82.5	128	86.8	142	78.3	91	16.51	30	0
1901	81.2	152	85.9	152	76.4	151	16.98	23	0
1900	82.2	140	86.5	146	77.9	106	14.93	45	0
1899	82.8	118	87.1	138	78.6	73	9.88	114	0
1898	82.8	118	87.4	127	78.1	99	10.45	105	0
1897	82.9	111	87.2	137	78.6	73	12.63	77	0
1896	82.9	111	87.6	116	78.1	99	8.65	135	0
1895	82.8	118	87.6	116	78	104	8.46	137	0
1894	82.1	141	86.9	140	77.2	135	9.92	112	0
1893	83	107	87.8	107	78.1	99	7.72	143	0
1892	81.7	149	86.5	146	77	142	9.38	117	0
1891	82.6	124	87.6	116	77.7	118	13.77	58	0
1890	81.8	145	86.5	146	77	142	9.28	120	0
1889	81.7	149	86.5	146	76.8	146	17.39	22	0
1888	82.4	134	87.3	132	77.6	125	11.92	84	0
1887	81.9	143	86.4	150	77.4	130	15.88	34	3
1886					78.8	63	13.77	58	92
1885	84.7	34	90.4	14	79	55	9.28	120	0
1884	84	64	90.1	21	77.9	106	10.08	109	0
1883	84.8	31	91	7	78.5	83	10.88	100	0
1882	84.6	36	90.9	8	78.4	87	12.90	73	0
1881	85.6	6	91.3	4	79.9	26	20.35	10	1
1880	84.9	24	90.3	17	79.5	37	13.72	60	0
1879	83.9	66	89	67	78.8	63	14.27	54	0
1878	85.2	11	90.6	11	79.9	26	16.81	25	0
1877	84.6	36	89.6	35	79.6	34	11.57	88	0
1876	83.2	95	87.8	107	78.6	73	15.83	35	0
1875	82.8	118	87.4	127	78.3	91	12.59	78	0
1874	84.2	54	89.8	28	78.6	73	11.35	91	0
1873							12.48	79	43
1872							13.98	56	30
1871							11.81	87	92

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2023	86.8
2020	86.1
2024	85.8
2007	85.8
2026	85.7
1881	85.6
2019	85.4
2014	85.4
1957	85.4
2018	85.3

Coldest
Year	Mean, °F
1901	81.2
1913	81.7
1892	81.7
1889	81.7
1909	81.8
1908	81.8
1904	81.8
1890	81.8
1929	81.9
1887	81.9

Wettest
Year	Precipitation, in
2005	26.20
1926	24.88
1972	22.82
1966	22.80
1936	21.99
1947	21.84
2024	21.50
2013	20.72
1908	20.42
1881	20.35

Driest
Year	Precipitation, in
1956	3.71
1918	4.00
1927	4.25
1914	4.32
1998	5.35
1993	5.96
1925	6.52
1910	6.84
1951	7.32
1904	7.34

The hottest, coldest and wettest days

Hottest day: 93°F; 19 August 2026, 18 August 2026, 3 August 2026, 1 August 2026
Coldest night: 71°F; 5 June 2026
Wettest day: 4.42 in; 5 June 2026

Every month, season and year

Months

Seasons

Years

Key West, FL the day's answers

All-time records

Every answer in words

Summer 2026 brought 12.41 in of precipitation in Key West, FL, the driest summer since 2025, 77th driest of 156.
The hottest day of summer 2026 in Key West, FL: 93°F on Wednesday 19 August 2026, Tuesday 18 August 2026, Monday 3 August 2026 and 1 other day.
The coldest night of summer 2026 in Key West, FL: a low of 71°F on Friday 5 June 2026.
The wettest day of summer 2026 in Key West, FL: 4.42 in on Friday 5 June 2026.