Boston, MA: Summer

31 August 2026: Summer 2026 averaged 73.9°F in Boston, MA, the warmest summer since 2022, tied 5th warmest of 155 (with 1994).

Summer 2026

Mean temperature: 73.9°F; Warmest since 2022; 5th warmest of 155
Precipitation: 7.07 in; Driest since 2025; 40th driest of 155

A normal summer in Boston, MA (1991 to 2020): a mean temperature of 72°F, between 69.8°F and 73.7°F in eight years of ten and 10.16 in of precipitation, between 4.84 in and 14.68 in in eight years of ten.

The mean temperature of every summer in Boston, MA since 1872: 73.9°F in 2026; the highest is 74.5°F, in 2021.

Normal range, 69.8 to 73.7°F

Every year, ranked, as a table

Every summer in Boston, MA from 1872 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	73.9	5	82	8	65.9	4	7.07	116	0
2025	72.1	30	80	46	64.2	25	5.16	144	0
2024	73	13	81.2	18	64.8	13	9.13	83	0
2023	71.1	58	77.9	105	64.3	20	20.33	2	0
2022	74.1	2	82.7	4	65.5	5	4.42	152	0
2021	74.5	1	82.1	6	66.9	1	19.64	4	0
2020	72.9	16	80.9	27	65	10	6.89	120	0
2019	73.7	8	81.4	14	66	3	14.44	21	0
2018	73.8	7	81.5	13	66.1	2	12.16	42	0
2017	71.3	53	79.3	68	63.4	40	10.46	61	0
2016	73.7	8	82.1	6	65.3	6	3.92	155	0
2015	71.1	58	78.8	79	63.4	40	9.29	82	0
2014	71.1	58	79.1	75	63.1	50	8.94	87	0
2013	73	13	80.9	27	65	10	15.95	13	0
2012	72.3	27	79.8	51	64.8	13	11.67	46	0
2011	72.8	18	80.3	39	65.3	6	14.54	19	0
2010	73.7	8	82	8	65.3	6	11.59	47	0
2009	69.2	121	75.9	146	62.6	72	13.36	29	0
2008	71.8	41	79.6	55	64	28	13.93	25	0
2007	71.4	50	79.6	55	63.2	47	8.04	100	0
2006	71.9	35	79.5	60	64.2	25	16.87	10	0
2005	72	33	80.2	43	63.8	31	7.71	107	0
2004	69.9	105	77.5	119	62.3	83	10.20	65	0
2003	71.4	50	78.9	77	63.8	31	9.69	74	0
2002	72.3	27	80.8	30	63.9	29	8.32	96	0
2001	71.6	43	79.6	55	63.7	35	11.26	51	0
2000	69.2	121	76.5	142	61.8	100	14.03	24	0
1999	72.7	20	81	24	64.3	20	4.84	148	0
1998	70.5	83	78.3	94	62.8	60	17.42	8	0
1997	71	65	79.3	68	62.7	65	5.05	145	0
1996	70.3	88	77.7	111	62.9	55	7.80	105	0
1995	72.5	25	81.1	22	63.8	31	4.43	151	0
1994	73.9	5	83	2	64.8	13	9.69	74	0
1993	72.6	22	81.6	12	63.6	37	4.82	149	0
1992	69.2	121	77.4	123	61	120	11.52	48	0
1991	72.8	18	81.2	18	64.3	20	10.11	66	0
1990	71	65	78.7	84	63.3	43	11.34	49	0
1989	70.8	71	78.6	88	62.9	55	13.85	27	0
1988	72.6	22	81.4	14	63.8	31	10.02	67	0
1987	69.1	127	77	133	61.2	119	6.37	129	0
1986	69.2	121	77.4	123	61	120	15.02	16	0
1985	69.6	110	77.2	131	62	89	14.12	22	0
1984	73.3	12	81.8	10	64.7	17	9.09	84	0
1983	74.1	2	82.9	3	65.3	6	5.42	141	0
1982	69.5	118	77.3	127	61.8	100	19.64	4	0
1981	72.5	25	80.7	32	64.3	20	6.16	133	0
1980	72.2	29	80.6	34	63.7	35	6.80	125	0
1979	71.5	46	79.6	55	63.3	43	8.24	98	0
1978	70.6	78	78.8	79	62.5	75	7.63	109	0
1977	71.9	35	80.8	30	63.1	50	7.61	110	0
1976	72.7	20	81.2	18	64.2	25	12.87	32	0
1975	72.1	30	80	46	64.3	20	9.97	69	0
1974	69.8	106	77.8	107	61.7	104	7.24	114	0
1973	73	13	81.2	18	64.9	12	12.29	39	0
1972	70.2	92	78.3	94	62.2	86	9.78	72	0
1971	72	33	81.3	17	62.7	65	6.17	132	0
1970	71.6	43	80.5	35	62.8	60	10.01	68	0
1969	71.5	46	79.2	70	63.9	29	5.50	139	0
1968	70.3	88	77.8	107	62.8	60	7.83	104	0
1967	70.3	88	77.8	107	62.9	55	11.69	45	0
1966	71.9	35	80.4	37	63.3	43	7.86	103	0
1965	69.6	110	78.8	79	60.5	131	5.02	147	0
1964	68.3	144	76.8	135	59.8	147	6.81	123	0
1963	71.5	46	80.7	32	62.4	81	5.31	142	0
1962	69.6	110	77.8	107	61.3	116	7.66	108	0
1961	71.2	54	79.7	53	62.7	65	8.13	99	0
1960	71.7	42	80.1	45	63.2	47	10.28	63	0
1959	71.2	54	79.4	64	63	53	19.68	3	0
1958	69.6	110	77.5	119	61.7	104	12.24	40	0
1957	71.6	43	80.5	35	62.7	65	3.97	154	0
1956	70.8	71	79.4	64	62.3	83	6.81	123	0
1955	72.9	16	81.4	14	64.4	19	24.89	1	0
1954	69.6	110	77.7	111	61.6	108	10.92	53	0
1953	71.9	35	81.1	22	62.7	65	5.05	145	0
1952	73.5	11	82.3	5	64.6	18	10.64	56	0
1951	70.2	92	78.4	91	62	89	9.67	76	0
1950	71.2	54	80.3	39	62	89	5.69	137	0
1949	74.1	2	83.5	1	64.8	13	4.15	153	0
1948	70.7	74	79.4	64	62	89	10.27	64	0
1947	71	65	79.5	60	62.5	75	9.05	85	0
1946	68.7	136	77.3	127	60.2	140	14.90	17	0
1945	69.8	106	78.1	102	61.4	111	12.83	33	0
1944	71.9	35	80.9	27	62.9	55	8.75	89	0
1943	72.1	30	81	24	63.2	47	6.68	127	0
1942	69.8	106	77.6	113	62	89	10.47	60	0
1941	70.1	95	78.7	84	61.4	111	8.74	90	0
1940	68.4	143	76.7	138	60.1	142	5.82	136	0
1939	70.6	78	78.6	88	62.7	65	5.59	138	0
1938	70.9	68	79.2	70	62.6	72	19.07	7	0
1937	71.4	50	79.6	55	63.3	43	9.56	79	0
1936	69.2	121	77.6	113	60.7	127	8.54	94	2
1935	69.6	110	77.3	127	62	89	8.31	97	0
1934	69.1	127	77.5	119	60.8	122	6.29	130	0
1933	70.6	78	79.4	64	61.9	98	7.26	113	0
1932	71.1	58	80.2	43	62.1	87	8.39	95	0
1931	71.1	58	78.8	79	63.5	38	16.03	12	0
1930	71.9	35	80.3	39	63.5	38	8.63	91	0
1929	70.1	95	79.5	60	60.7	127	5.87	135	1
1928	70.7	74	78.3	94	63	53	12.15	43	0
1927	68.3	144	76.3	145	60.2	140	13.93	25	0
1926	68.5	141	76.4	144	60.5	131	11.30	50	0
1925	71.5	46	80.4	37	62.5	75	9.53	80	0
1924	70.9	68	79.2	70	62.5	75	9.97	69	0
1923	69.5	118	78.2	100	60.8	122	7.46	111	0
1922	70.4	85	77.9	105	62.9	55	15.43	15	0
1921	70.4	85	78.4	91	62.4	81	16.90	9	0
1920	70.1	95	78.2	100	62.1	87	9.66	77	0
1919	70.1	95	78.1	102	62	89	10.78	54	0
1918	68.5	141	76.5	142	60.6	130	6.14	134	0
1917	70.7	74	78.8	79	62.6	72	12.21	41	0
1916	69.1	127	76.7	138	61.4	111	12.90	31	0
1915	67.7	152	75	153	60.5	131	15.87	14	0
1914	68.8	134	76.7	138	60.8	122	7.24	114	0
1913	70.7	74	79.9	50	61.6	108	6.19	131	0
1912	70.1	95	78.9	77	61.3	116	7.37	112	0
1911	70.6	78	78.5	90	62.7	65	12.49	37	0
1910	69.7	109	77.4	123	62	89	7.02	117	0
1909	70.1	95	78.3	94	61.9	98	8.97	86	0
1908	71.1	58	79.5	60	62.8	60	8.60	93	0
1907	69.1	127	77.4	123	60.8	122	4.75	150	0
1906	69.6	110	77.1	132	62	89	9.53	80	0
1905	69.1	127	76.8	135	61.3	116	9.62	78	0
1904	68.1	147	75.8	147	60.3	139	5.48	140	0
1903	65.5	155	72.5	155	58.4	154	13.51	28	0
1902	66.6	154	74.7	154	58.6	153	6.85	121	0
1901	70.8	71	78.7	84	62.8	60	9.76	73	0
1900	71.2	54	80	46	62.5	75	7.00	118	0
1899	70.5	83	79.1	75	61.8	100	7.90	102	0
1898	70.3	88	78.1	102	62.5	75	12.40	38	0
1897	67.9	150	75.7	150	60.1	142	12.63	35	0
1896	69.6	110	77.5	119	61.7	104	7.76	106	0
1895	69	132	76.8	135	61.4	111	7.95	101	2
1894	70.2	92	79.2	70	61.4	111	6.92	119	4
1893	68.7	136	76.6	141	60.8	122	10.38	62	4
1892	70.9	68	78.7	84	63.1	50	10.48	59	0
1891	68	149	75.6	151	60.4	135	10.66	55	0
1890	68.1	147	75.8	147	60.4	135	6.84	122	0
1889	68.6	138	75.6	151	61.7	104	12.59	36	0
1888	68.6	138	77.6	113	59.6	149	11.01	52	0
1887	69.2	121	76.9	134	61.5	110	8.62	92	0
1886	67.6	153	75.8	147	59.4	151	6.79	126	0
1885	68.8	134	77.6	113	60.1	142	12.78	34	0
1884	68.6	138	77.6	113	59.5	150	13.27	30	0
1883	70	103	80	46	60.1	142	5.19	143	0
1882	70.6	78	81	24	60.1	142	6.40	128	0
1881	67.8	151	77.3	127	58.3	155	11.98	44	0
1880	70.4	85	80.3	39	60.4	135	10.51	58	0
1879	68.3	144	77.6	113	59.1	152	16.04	11	0
1878	69.4	120	78.3	94	60.4	135	14.52	20	0
1877	70.1	95	78.4	91	61.8	100	9.97	69	0
1876	71.1	58	79.8	51	62.3	83	8.81	88	0
1875	70	103	79.2	70	60.7	127	14.68	18	0
1874	69	132	78.3	94	59.7	148	14.08	23	0
1873	70.1	95	79.7	53	60.5	131	10.59	57	0
1872	72.6	22	81.7	11	63.4	40	19.56	6	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2021	74.5
2022	74.1
1983	74.1
1949	74.1
2026	73.9
1994	73.9
2018	73.8
2019	73.7
2016	73.7
2010	73.7

Coldest
Year	Mean, °F
1903	65.5
1902	66.6
1886	67.6
1915	67.7
1881	67.8
1897	67.9
1891	68
1904	68.1
1890	68.1
1964	68.3
More years share the last value

Wettest
Year	Precipitation, in
1955	24.89
2023	20.33
1959	19.68
2021	19.64
1982	19.64
1872	19.56
1938	19.07
1998	17.42
1921	16.90
2006	16.87

Driest
Year	Precipitation, in
2016	3.92
1957	3.97
1949	4.15
2022	4.42
1995	4.43
1907	4.75
1993	4.82
1999	4.84
1965	5.02
1997	5.05
More years share the last value

The hottest, coldest and wettest days

Hottest day: 101°F; 2 July 2026
Coldest night: 49°F; 2 June 2026, 1 June 2026
Wettest day: 1.57 in; 7 July 2026

Every month, season and year

Months

Seasons

Years

Boston, MA the day's answers

All-time records

Every answer in words

Summer 2026 brought 7.07 in of precipitation in Boston, MA, the driest summer since 2025, 40th driest of 155.
The hottest day of summer 2026 in Boston, MA: 101°F on Thursday 2 July 2026.
The coldest night of summer 2026 in Boston, MA: a low of 49°F on Tuesday 2 June 2026 and Monday 1 June 2026.
The wettest day of summer 2026 in Boston, MA: 1.57 in on Tuesday 7 July 2026.