Marathon, FL: Summer

31 August 2026: Summer 2026 averaged 85.4°F in Marathon, FL, the warmest summer since 2024, tied 13th warmest of 63 (with 2024, 2014 and 2005).

Summer 2026

Mean temperature: 85.4°F; Warmest since 2024; 13th warmest of 63
Precipitation: 5.02 in; Driest since 1993; 3rd driest of 63

A normal summer in Marathon, FL (1991 to 2020): a mean temperature of 85.2°F, between 83.6°F and 86°F in eight years of ten and 13.36 in of precipitation, between 7.54 in and 18.56 in in eight years of ten.

The mean temperature of every summer in Marathon, FL since 1950: 85.4°F in 2026; the highest is 87.8°F, in 2023.

Normal range, 83.6 to 86°F

Every year, ranked, as a table

Every summer in Marathon, FL from 1950 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	85.4	13	89.2	47	81.6	2	5.02	61	0
2025	85	20	89.2	47	80.8	5	11.16	40	0
2024	85.4	13	89.6	40	81.3	3	19.52	7	0
2023	87.8	1	93.9	1	81.7	1	14.42	26	0
2022	86.1	4	92.1	3	80	13	14.01	27	0
2021	84.1	32	89.4	44	78.8	35	15.34	20	0
2020	85.5	12	91.1	16	80	13	13.85	28	0
2019	87	2	92.8	2	81.2	4	12.65	36	0
2018	85.2	19	91.3	12	79.2	26	9.45	46	0
2017	86	6	91.2	14	80.8	5	12.51	37	0
2016	85	20	90.5	23	79.4	23	16.39	17	0
2015	86.1	4	91.8	6	80.4	8	7.15	58	0
2014	85.4	13	91.2	14	79.6	21	13.36	31	0
2013	85.3	17	90.7	22	79.9	15	19.47	8	0
2012	84.5	29	89.9	35	79.2	26	15.85	19	0
2011	86	6	91.6	8	80.3	9	7.79	53	0
2010	85.6	11	91.4	10	79.8	16	14.94	24	1
2009	85.9	8	91.7	7	80.1	12	12.90	34	0
2008	85.3	17	91.1	16	79.6	21	15.32	21	1
2007	83.7	43	89.5	42	77.8	46	14.60	25	0
2006	84.7	24	90.4	25	79	29	18.33	9	1
2005	85.4	13	91	19	79.8	16	22.41	4	2
2004	85.8	10	92	4	79.7	19	7.40	57	1
2003	84.7	24	90.4	25	78.9	34	15.10	22	3
2002	85.9	8	91.5	9	80.3	9	14.96	23	0
2001	84.6	28	90.1	31	79.1	28	11.34	39	1
2000									17
1999	84.1	32	89.5	42	78.7	37	13.85	28	0
1998	86.3	3	91.9	5	80.7	7	7.57	56	3
1997	83.5	49	88.5	57	78.5	38	12.93	33	1
1996	83.4	51	88.7	55	78.2	40	7.75	55	2
1995	83.4	51	89	49	77.9	42	23.00	3	0
1994	83.6	47	88.9	52	78.4	39	12.83	35	0
1993	84.7	24	90	33	79.4	23	4.57	62	0
1992	84.1	32	89.3	46	78.8	35	16.28	18	0
1991	84.9	22	90.8	21	79	29	9.87	44	2
1990	83.7	43	88.3	58	79	29	16.43	16	2
1989	83.2	54	88.6	56	77.8	46	9.32	48	1
1988	82.2	61	88.2	60	76.1	58	27.43	1	0
1987	84.9	22	89.4	44	80.3	9	5.44	60	0
1986	83.7	43	87.7	62	79.7	19	8.76	52	0
1985	84.4	31	89	49	79.8	16	13.04	32	0
1984	82.7	58	86.3	63	79	29	10.17	42	0
1983	83.6	47	88.2	60	79	29	21.11	6	0
1982	83.9	38	88.3	58	79.4	23	11.38	38	0
1975									68
1974									12
1972	82.9	56	88.8	54	76.9	56	17.80	10	1
1971	83.9	38	90.5	23	77.2	54	9.00	50	0
1970	84	36	90.9	20	77.2	54	9.42	47	0
1969	84.7	24	91.4	10	77.9	42	21.29	5	0
1968									31
1967									31
1966									30
1965	83.8	41	90.4	25	77.3	52	8.80	51	0
1964	83.9	38	90.3	28	77.5	50	11.15	41	0
1963	83.7	43	89.8	37	77.5	50	10.17	42	0
1962	83.5	49	89.8	37	77.3	52	16.51	15	0
1961	84	36	89.9	35	78.1	41	5.77	59	1
1960	83.8	41	89.7	39	77.8	46	17.16	11	0
1959	82.9	56	88.9	52	76.8	57	16.74	13	0
1958	83.4	51	89	49	77.9	42	16.70	14	0
1957	84.1	32	90.3	28	77.8	46	9.13	49	1
1956	82.7	58	90.3	28	75	59	4.20	63	4
1955	82.1	62	89.6	40	74.6	62	9.66	45	1
1954	82.4	60	90.1	31	74.7	61	17.02	12	0
1953	81	63	90	33	72	63	23.37	2	0
1952	83.1	55	91.3	12	74.9	60	13.56	30	0
1951									31
1950	84.5	29	91.1	16	77.9	42	7.76	54	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2023	87.8
2019	87
1998	86.3
2022	86.1
2015	86.1
2017	86
2011	86
2009	85.9
2002	85.9
2004	85.8

Coldest
Year	Mean, °F
1953	81
1955	82.1
1988	82.2
1954	82.4
1984	82.7
1956	82.7
1972	82.9
1959	82.9
1952	83.1
1989	83.2

Wettest
Year	Precipitation, in
1988	27.43
1953	23.37
1995	23.00
2005	22.41
1969	21.29
1983	21.11
2024	19.52
2013	19.47
2006	18.33
1972	17.80

Driest
Year	Precipitation, in
1956	4.20
1993	4.57
2026	5.02
1987	5.44
1961	5.77
2015	7.15
2004	7.40
1998	7.57
1996	7.75
1950	7.76

The hottest, coldest and wettest days

Hottest day: 93°F; 16 July 2026
Coldest night: 74°F; 11 July 2026, 10 July 2026, 3 June 2026
Wettest day: 1.57 in; 10 July 2026

Every month, season and year

Months

Seasons

Years

Marathon, FL the day's answers

All-time records

Every answer in words

Summer 2026 brought 5.02 in of precipitation in Marathon, FL, the driest summer since 1993 (2000 excluded: 10 of 92 days missing), 3rd driest of 63.
The hottest day of summer 2026 in Marathon, FL: 93°F on Thursday 16 July 2026.
The coldest night of summer 2026 in Marathon, FL: a low of 74°F on Saturday 11 July 2026, Friday 10 July 2026 and Wednesday 3 June 2026.
The wettest day of summer 2026 in Marathon, FL: 1.57 in on Friday 10 July 2026.