Key West, FL: August

31 August 2026: August 2026 averaged 86°F in Key West, FL, the warmest August since 2024, tied 9th warmest of 154 (with 2019, 2003 and 1878).

August 2026

Mean temperature: 86°F; Warmest since 2024; 9th warmest of 154
Precipitation: 3.06 in; Driest since 2022; 44th driest of 156

A normal August in Key West, FL (1991 to 2020): a mean temperature of 85.1°F, between 83.4°F and 86.3°F in eight years of ten and 4.37 in of precipitation, between 2.23 in and 9.03 in in eight years of ten.

The mean temperature of every August in Key West, FL since 1872: 86°F in 2026; the highest is 87.5°F, in 2007.

Normal range, 83.4 to 86.3°F

Every year, ranked, as a table

Every August 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	86	9	90.4	37	81.6	6	3.06	113	0
2025	85.5	19	90.7	24	80.4	22	4.59	67	0
2024	86.1	8	91	17	81.2	10	9.04	11	0
2023	87.4	2	91.8	6	83	2	6.31	37	0
2022	84.9	40	89.2	80	80.7	13	2.33	132	0
2021	84.7	54	88.9	94	80.5	19	4.14	82	0
2020	87.2	3	91.2	12	83.1	1	2.61	123	0
2019	86	9	90.5	33	81.5	7	4.35	73	0
2018	85.7	16	90.7	24	80.7	13	1.89	146	0
2017	85.8	14	89.6	62	81.9	5	2.23	137	0
2016	84.5	60	89.5	68	79.6	43	8.81	16	0
2015	85.8	14	90.4	37	81.2	10	6.77	29	0
2014	86.4	5	90.6	31	82.2	4	4.05	85	0
2013	83.4	118	87.6	143	79.2	66	4.38	71	0
2012	83.4	118	87.4	148	79.4	60	3.25	108	0
2011	85.5	19	90.2	42	80.9	12	11.23	3	0
2010	85.1	31	89.6	62	80.6	17	5.01	56	0
2009	86.3	6	91.1	14	81.5	7	4.91	59	0
2008	84.8	48	89.6	62	80	30	6.52	34	0
2007	87.5	1	92.1	4	82.8	3	1.20	155	0
2006	84.6	55	89.3	78	79.9	31	4.04	86	0
2005	85.9	13	91	17	80.7	13	13.49	2	0
2004	84.6	55	89.7	57	79.5	51	4.25	76	0
2003	86	9	90.7	24	81.3	9	5.07	54	0
2002	84.4	65	89.2	80	79.6	43	6.71	30	0
2001	84.4	65	89.3	78	79.5	51	6.60	32	0
2000	83.2	126	88.6	112	77.8	131	8.84	15	0
1999	84	83	89.1	86	78.9	80	9.55	6	0
1998	84.6	55	90	49	79.2	66	3.37	106	0
1997	84.4	65	89.7	57	79	76	3.63	99	0
1996	83.7	102	88.9	94	78.5	104	6.48	35	0
1995	85.3	25	90.8	22	79.7	38	2.87	118	0
1994	83.4	118	89	90	77.9	130	8.97	13	0
1993	85.3	25	90.9	20	79.7	38	3.81	94	0
1992	85.1	31	90.5	33	79.7	38	3.82	93	0
1991	85.5	19	91.5	8	79.5	51	2.23	137	0
1990	85.5	19	92	5	79.1	72	8.01	20	0
1989	85.4	24	91.1	14	79.6	43	3.30	107	0
1988	84.2	74	89.4	72	79	76	6.29	38	0
1987	85.3	25	90.7	24	79.9	31	3.87	91	0
1986	83.7	102	88.7	106	78.7	89	5.66	45	0
1985	84	83	89.2	80	78.8	83	5.92	41	0
1984	83.5	114	87.6	143	79.4	60	2.59	125	0
1983	83.9	93	89	90	78.8	83	2.79	120	0
1982	83.9	93	89.1	86	78.7	89	2.61	123	0
1981	84	83	88.5	118	79.5	51	8.88	14	0
1980	84.9	40	89.6	62	80.3	24	6.38	36	0
1979	85.2	30	90.2	42	80.1	27	2.51	129	0
1978	85.3	25	90.3	40	80.3	24	2.69	122	0
1977	83	135	87.7	140	78.3	113	10.43	4	0
1976	84	83	88.9	94	79.1	72	7.10	26	0
1975	84.5	60	89.4	72	79.6	43	4.20	79	0
1974	84.2	74	88.4	120	79.9	31	4.13	83	0
1973	83.1	132	88.1	128	78.1	122	8.55	18	0
1972	84.4	65	88.7	106	80.1	27	3.53	101	0
1971	83.2	126	87.9	132	78.4	108	9.03	12	0
1970	83.3	122	87.7	140	78.9	80	4.03	87	0
1969	84.9	40	89	90	80.7	13	2.25	134	0
1968	84	83	89	90	79.1	72	4.77	65	0
1967	84.3	71	88.8	100	79.8	36	3.98	88	0
1966	84	83	88.8	100	79.3	63	3.50	103	0
1965	85.1	31	89.5	68	80.6	17	2.26	133	0
1964	84.9	40	89.4	72	80.4	22	3.42	105	0
1963	84.9	40	90.4	37	79.5	51	7.15	25	0
1962	85	37	90.7	24	79.3	63	8.03	19	0
1961	84.9	40	90.1	47	79.6	43	2.97	116	0
1960	83.2	126	88.6	112	77.8	131	9.21	9	0
1959	83.6	109	88.6	112	78.6	95	2.81	119	0
1958	84.8	48	90	49	79.6	43	4.20	79	0
1957	85.6	18	92.7	2	78.6	95	4.57	68	0
1956	86.6	4	94.2	1	79	76	1.24	154	0
1955	84.5	60	91.3	11	77.7	133	4.78	64	0
1954	84.6	55	91.7	7	77.5	137	5.12	53	0
1953	84.6	55	90.9	20	78.2	118	1.90	145	0
1952	84.4	65	90.7	24	78.2	118	2.49	130	0
1951	86.3	6	92.6	3	79.9	31	2.22	139	0
1950	84	83	90.2	42	77.7	133	7.05	27	0
1949	83.7	102	89.2	80	78.2	118	4.85	61	0
1948	84.9	40	90.3	40	79.5	51	2.73	121	0
1947	83.7	102	88.6	112	78.7	89	3.89	89	0
1946	84.1	79	89.7	57	78.4	108	2.94	117	0
1945	83.5	114	88.5	118	78.5	104	9.42	7	0
1944	85.1	31	89.9	51	80.3	24	3.25	108	0
1943	84.8	48	90.2	42	79.4	60	2.56	127	0
1942	84.8	48	89.7	57	79.8	36	1.53	151	0
1941	85	37	91	17	78.9	80	2.57	126	0
1940	83.9	93	89.4	72	78.4	108	5.75	42	0
1939	83.3	122	89.2	80	77.4	139	3.73	97	0
1938	83.7	102	88.9	94	78.6	95	2.16	140	0
1937	83.9	93	89.6	62	78.1	122	4.34	75	0
1936	82.8	138	88.1	128	77.5	137	7.52	23	0
1935	84.1	79	89.5	68	78.6	95	4.18	81	0
1934	83.4	118	89.1	86	77.6	136	2.24	136	0
1933	83.7	102	88.7	106	78.6	95	4.90	60	0
1932	84.2	74	90.1	47	78.4	108	6.63	31	0
1931	83.8	98	89.6	62	78	127	5.56	47	0
1930	83.8	98	89.4	72	78.3	113	4.09	84	0
1929	82.5	143	87.8	136	77.3	141	6.10	39	0
1928	83.2	126	88.4	120	78	127	5.25	50	0
1927	85.1	31	90.7	24	79.5	51	1.66	149	0
1926	83	135	88.8	100	77.2	145	15.83	1	0
1925	84	83	89.8	54	78.3	113	3.57	100	0
1924	84.9	40	90.2	42	79.6	43	3.85	92	0
1923	82.7	140	88	130	77.4	139	3.88	90	0
1922	83.2	126	88.4	120	78	127	3.51	102	0
1921	83.1	132	88.2	126	78.1	122	4.52	70	0
1920	82.6	142	87.9	132	77.3	141	5.15	52	0
1919	84.2	74	89.4	72	79	76	1.46	152	0
1918	84.3	71	89.2	80	79.5	51	1.85	147	0
1917	83.6	109	88.8	100	78.3	113	4.79	63	0
1916	82.5	143	87.9	132	77.1	146	5.04	55	0
1915	84.5	60	89.8	54	79.2	66	0.92	156	0
1914	84.3	71	89.7	57	78.8	83	1.29	153	0
1913	82	149	87.4	148	76.7	148	5.18	51	0
1912	83.6	109	88.7	106	78.6	95	1.69	148	0
1911	82	149	87.6	143	76.4	151	7.89	21	0
1910	83.1	132	88.9	94	77.3	141	3.21	110	0
1909	81.7	152	87.5	146	76	153	8.56	17	0
1908	82.2	146	88.6	112	75.8	154	7.74	22	0
1907	83.6	109	89.1	86	78.1	122	2.16	140	0
1906	82.8	138	87.9	132	77.7	133	3.00	115	0
1905	83.8	98	88.7	106	78.8	83	3.14	112	0
1904	82.2	146	87.5	146	76.9	147	4.24	77	0
1903	84	83	89.5	68	78.5	104	4.24	77	0
1902	83.6	109	88.3	124	78.8	83	5.35	49	0
1901	81.2	153	86.1	154	76.4	151	5.75	42	0
1900	82.7	140	87.3	150	78.1	122	3.02	114	0
1899	84.1	79	88.4	120	79.9	31	3.80	95	0
1898	82.5	143	87.7	140	77.3	141	5.73	44	0
1897	83.8	98	88.8	100	78.7	89	6.55	33	0
1896	84	83	88.8	100	79.3	63	2.37	131	0
1895	83	135	87.8	136	78.2	118	4.92	58	0
1894	83.7	102	88.7	106	78.6	95	4.35	73	0
1893	83.9	93	88.6	112	79.2	66	1.94	144	0
1892	83.3	122	88	130	78.7	89	1.59	150	0
1891	82.1	148	87.8	136	76.5	150	10.13	5	0
1890	81.8	151	86.9	152	76.7	148	2.25	134	0
1889	81	154	86.5	153	75.5	155	9.40	8	0
1888	83.5	114	88.3	124	78.7	89	2.00	143	0
1887	83.5	114	87.3	150	79.7	38	2.14	142	3
1886					79.2	66	4.54	69	31
1885	85.5	19	91.4	10	79.7	38	2.55	128	0
1884	84.8	48	91.1	14	78.5	104	3.16	111	0
1883	85	37	91.2	12	78.8	83	6.08	40	0
1882	84.4	65	90.5	33	78.3	113	4.97	57	0
1881	85.1	31	90.6	31	79.5	51	6.91	28	1
1880	84.1	79	88.9	94	79.2	66	7.30	24	0
1879	84.8	48	89.9	51	79.6	43	5.61	46	0
1878	86	9	91.5	8	80.5	19	4.63	66	0
1877	85.7	16	90.8	22	80.5	19	5.51	48	0
1876	83.3	122	88.2	126	78.4	108	4.38	71	0
1875	83.2	126	87.8	136	78.6	95	9.20	10	0
1874	84.5	60	89.9	51	79.1	72	3.78	96	0
1873	84.2	74	89.8	54	78.6	95	3.67	98	1
1872	85.3	25	90.5	33	80.1	27	4.82	62	0
1871							3.43	104	31

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2007	87.5
2023	87.4
2020	87.2
1956	86.6
2014	86.4
2009	86.3
1951	86.3
2024	86.1
2026	86
2019	86
More years share the last value

Coldest
Year	Mean, °F
1889	81
1901	81.2
1909	81.7
1890	81.8
1913	82
1911	82
1891	82.1
1908	82.2
1904	82.2
1929	82.5
More years share the last value

Wettest
Year	Precipitation, in
1926	15.83
2005	13.49
2011	11.23
1977	10.43
1891	10.13
1999	9.55
1945	9.42
1889	9.40
1960	9.21
1875	9.20

Driest
Year	Precipitation, in
1915	0.92
2007	1.20
1956	1.24
1914	1.29
1919	1.46
1942	1.53
1892	1.59
1927	1.66
1912	1.69
1918	1.85

The hottest, coldest and wettest days

Hottest day: 93°F; 19 August 2026, 18 August 2026, 3 August 2026, 1 August 2026
Coldest night: 74°F; 6 August 2026
Wettest day: 0.98 in; 6 August 2026

Every month, season and year

Months

Seasons

Years

Key West, FL the day's answers

All-time records

Every answer in words

August 2026 brought 3.06 in of precipitation in Key West, FL, the driest August since 2022, 44th driest of 156.
The hottest day of August 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 August 2026 in Key West, FL: a low of 74°F on Thursday 6 August 2026.
The wettest day of August 2026 in Key West, FL: 0.98 in on Thursday 6 August 2026.