Boston, MA: August

31 August 2026: August 2026 averaged 75.2°F in Boston, MA, the warmest August since 2022, tied 6th warmest of 155 (with 2002).

August 2026

Mean temperature: 75.2°F; Warmest since 2022; 6th warmest of 155
Precipitation: 0.98 in; Driest since 2025; 7th driest of 155

A normal August in Boston, MA (1991 to 2020): a mean temperature of 73.1°F, between 70.8°F and 74.7°F in eight years of ten and 2.95 in of precipitation, between 1.33 in and 5.32 in in eight years of ten.

The mean temperature of every August in Boston, MA since 1872: 75.2°F in 2026; the highest is 77.4°F, in 2018.

Normal range, 70.8 to 74.7°F

Every year, ranked, as a table

Every August 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
2026	75.2	6	82.5	13	68	5	0.98	148
2025	70.6	96	78.4	94	62.9	94	0.83	151
2024	72	55	79.4	71	64.6	47	3.70	56
2023	71.8	65	78.5	93	65	39	6.46	19
2022	76.7	3	85.2	1	68.1	3	1.47	134
2021	76.9	2	83.7	5	70	1	7.00	10
2020	74.1	20	81.9	26	66.3	21	2.28	95
2019	74.1	20	81.7	32	66.5	15	3.48	60
2018	77.4	1	84.8	2	70	1	4.65	38
2017	72	55	79.5	67	64.5	49	1.58	127
2016	76.4	4	84.7	3	68.1	3	1.72	119
2015	74.6	10	82.7	11	66.6	13	2.19	100
2014	70.8	85	78.4	94	63.2	84	1.75	118
2013	72.1	53	79.8	63	64.5	49	1.84	113
2012	74.6	10	82.1	23	67.2	8	3.08	77
2011	73.9	24	81	40	66.8	10	7.74	5
2010	73.4	35	81.4	36	65.5	29	5.75	24
2009	73.6	29	80.8	45	66.4	18	3.24	70
2008	70	116	76.9	129	63.2	84	4.47	41
2007	72.7	45	80.6	49	64.7	42	0.66	154
2006	71.4	74	78.8	87	64	62	3.20	73
2005	74.4	15	82.3	18	66.5	15	2.88	87
2004	72	55	79.7	65	64.4	55	4.38	43
2003	74.2	18	81.9	26	66.6	13	2.89	86
2002	75.2	6	83.2	8	67.3	6	2.13	107
2001	73.9	24	81.1	39	66.7	12	4.14	49
2000	70.3	107	77.1	127	63.4	79	2.22	96
1999	71.3	75	78.9	81	63.7	71	1.33	138
1998	72.5	46	80.2	56	64.7	42	3.37	64
1997	71.1	78	78.8	87	63.5	77	3.01	81
1996	70.9	84	77.8	114	64	62	1.54	132
1995	72.8	44	81.5	34	64.1	61	0.82	153
1994	72.4	48	81	40	63.8	68	7.03	9
1993	73.5	34	81.3	38	65.8	26	1.32	139
1992	70.3	107	78	108	62.7	97	4.25	46
1991	73.7	27	81.9	26	65.6	27	5.27	30
1990	73.3	38	80.2	56	66.3	21	6.57	17
1989	71.6	70	79.2	76	64	62	5.92	23
1988	75.5	5	83.6	6	67.3	6	1.11	145
1987	70.3	107	78.2	104	62.3	107	2.93	82
1986	70.5	99	78.3	102	62.7	97	3.32	66
1985	70.3	107	77.2	126	63.5	77	6.67	15
1984	74.6	10	82.3	18	66.8	10	1.60	125
1983	73.6	29	81.7	32	65.5	29	3.28	68
1982	70.3	107	77.9	112	62.6	101	2.22	96
1981	72	55	80.3	53	63.8	68	1.04	147
1980	74.2	18	81.9	26	66.4	18	1.55	130
1979	71.7	67	78.6	92	64.7	42	5.02	33
1978	71.6	70	78.2	104	65	39	4.62	39
1977	73.4	35	82.3	18	64.5	49	2.91	84
1976	71.9	63	80.2	56	63.7	71	7.99	4
1975	72.9	42	80.4	52	65.4	32	5.52	28
1974	72	55	79.5	67	64.5	49	3.41	61
1973	74.8	8	82.7	11	66.9	9	2.78	89
1972	71.5	72	80	60	62.9	94	0.83	151
1971	73.4	35	82.3	18	64.5	49	1.59	126
1970	73.6	29	82.5	13	64.6	47	4.12	50
1969	74.3	17	83	9	65.6	27	1.89	112
1968	70.7	88	78	108	63.4	79	1.63	123
1967	70.8	85	77.5	121	64.2	59	5.74	25
1966	71.2	77	78.9	81	63.6	75	1.25	141
1965	70.5	99	79.4	71	61.5	124	1.48	133
1964	66.4	154	74.5	153	58.3	155	1.78	117
1963	70.4	102	79.2	76	61.6	122	1.67	121
1962	69.9	118	77.6	117	62.3	107	3.72	55
1961	72.5	46	80.6	49	64.3	58	3.17	75
1960	72.2	50	80.1	59	64.4	55	1.64	122
1959	74.1	20	81.8	30	66.4	18	2.93	82
1958	72.4	48	80.9	43	63.8	68	5.37	29
1957	69.3	129	77.5	121	61.1	133	1.71	120
1956	71.8	65	80.3	53	63.4	79	1.46	135
1955	74.5	13	82.5	13	66.5	15	17.09	1
1954	70.1	114	78.4	94	61.8	116	5.64	26
1953	72	55	80.8	45	63.1	89	1.81	115
1952	72.2	50	80.3	53	64.2	59	6.86	11
1951	70.6	96	78.8	87	62.5	105	3.23	72
1950	70.8	85	78.9	81	62.8	96	3.14	76
1949	74.4	15	83.3	7	65.5	29	2.12	108
1948	73.7	27	82.3	18	65.1	37	1.24	142
1947	73.1	39	81.8	30	64.5	49	2.19	100
1946	67.8	147	74.9	152	60.6	139	9.92	3
1945	70.7	88	79.4	71	62.1	111	4.27	45
1944	74.7	9	84.3	4	65.1	37	1.79	116
1943	71	81	78.9	81	63.1	89	1.28	140
1942	70.7	88	78.4	94	63	92	2.09	109
1941	70.6	96	79.9	62	61.3	130	1.55	130
1940	68.5	142	76.6	136	60.3	143	0.85	150
1939	73.8	26	81.5	34	66.2	24	2.14	105
1938	73.6	29	82	25	65.2	35	3.31	67
1937	74.5	13	82.8	10	66.3	21	4.94	35
1936	69.7	120	78	108	61.4	127	5.15	31
1935	70.7	88	78.7	90	62.7	97	2.14	105
1934	67.3	152	75.1	147	59.5	150	1.83	114
1933	71.7	67	79.5	67	64	62	3.41	61
1932	74	23	82.5	13	65.4	32	4.24	47
1931	72.1	53	79.6	66	64.7	42	4.45	42
1930	70.5	99	78.4	94	62.6	101	3.03	79
1929	69.2	132	78.4	94	60.1	146	2.22	96
1928	73.6	29	81	40	66.1	25	2.45	93
1927	67.5	151	75.1	147	59.8	149	6.73	13
1926	70.4	102	77.6	117	63.2	84	3.91	53
1925	71.1	78	80	60	62.3	107	1.40	137
1924	71.9	63	79.5	67	64.4	55	6.86	11
1923	69.3	129	78.1	107	60.5	141	2.07	110
1922	70.4	102	77.4	123	63.4	79	4.75	37
1921	69.6	124	77.7	115	61.5	124	1.63	123
1920	72	55	78.9	81	65.2	35	2.32	94
1919	68.8	137	76.4	137	61.2	132	5.07	32
1918	70.4	102	78.2	104	62.6	101	1.56	129
1917	72.9	42	80.9	43	64.8	41	7.06	8
1916	71.7	67	79.8	63	63.7	71	2.19	100
1915	69.1	133	76.3	138	61.9	112	5.63	27
1914	70.4	102	77.7	115	63	92	3.20	73
1913	70.7	88	79.2	76	62.3	107	2.86	88
1912	68.9	135	76.8	131	61.1	133	1.94	111
1911	69	134	76.3	138	61.7	118	4.17	48
1910	68.8	137	75.9	144	61.7	118	0.98	148
1909	69.4	127	76.9	129	61.9	112	3.55	58
1908	69.4	127	76.1	141	62.6	101	4.35	44
1907	69.7	120	77.6	117	61.7	118	1.10	146
1906	72	55	79.4	71	64.7	42	1.58	127
1905	68.6	141	75.6	146	61.6	122	3.39	63
1904	68.7	139	76.3	138	61.1	133	2.19	100
1903	65	155	71.5	155	58.5	154	3.33	65
1902	67.6	149	75.1	147	60.1	146	2.20	99
1901	70.7	88	77.4	123	64	62	3.25	69
1900	71.1	78	79	79	63.2	84	2.46	92
1899	68.7	139	76.1	141	61.4	127	2.52	91
1898	73.1	39	80.8	45	65.4	32	6.38	21
1897	69.6	124	77.3	125	61.9	112	3.95	52
1896	70.7	88	78.3	102	63.1	89	2.15	104
1895	71	81	79.3	75	62.7	97	3.24	70
1894	68	146	75.9	144	60.2	145	3.03	79
1893	69.6	124	76.7	134	62.4	106	6.46	19
1892	70.2	113	76.7	134	63.6	75	4.87	36
1891	70	116	76.8	131	63.2	84	3.87	54
1890	68.9	135	76.1	141	61.7	118	2.70	90
1889	67.3	152	73.8	154	60.9	138	4.02	51
1888	70.1	114	78.9	81	61.4	127	6.53	18
1887	67.6	149	75	151	60.3	143	3.05	78
1886	68.2	144	76.8	131	59.5	150	3.64	57
1885	67.8	147	75.1	147	60.5	141	7.64	7
1884	69.7	120	77.6	117	61.8	116	5.01	34
1883	68.3	143	77.9	112	58.6	153	0.39	155
1882	71.5	72	82.1	23	61	136	1.46	135
1881	71.3	75	80.8	45	61.9	112	1.23	143
1880	70.7	88	81.4	36	60.1	146	2.90	85
1879	69.3	129	78	108	60.6	139	6.71	14
1878	69.7	120	78.4	94	61	136	7.66	6
1877	72.2	50	80.5	51	63.9	67	4.49	40
1876	70.3	107	79	79	61.5	124	1.23	143
1875	71	81	78.7	90	63.3	83	3.50	59
1874	68.1	145	77.1	127	59	152	6.67	15
1873	69.8	119	78.4	94	61.3	130	6.21	22
1872	73	41	82.4	17	63.7	71	10.72	2

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2018	77.4
2021	76.9
2022	76.7
2016	76.4
1988	75.5
2026	75.2
2002	75.2
1973	74.8
1944	74.7
2015	74.6
More years share the last value

Coldest
Year	Mean, °F
1903	65
1964	66.4
1934	67.3
1889	67.3
1927	67.5
1902	67.6
1887	67.6
1946	67.8
1885	67.8
1894	68

Wettest
Year	Precipitation, in
1955	17.09
1872	10.72
1946	9.92
1976	7.99
2011	7.74
1878	7.66
1885	7.64
1917	7.06
1994	7.03
2021	7.00

Driest
Year	Precipitation, in
1883	0.39
2007	0.66
1995	0.82
2025	0.83
1972	0.83
1940	0.85
2026	0.98
1910	0.98
1981	1.04
1907	1.10

The hottest, coldest and wettest days

Hottest day: 94°F; 7 August 2026
Coldest night: 62°F; 16 August 2026
Wettest day: 0.47 in; 3 August 2026

Every month, season and year

Months

Seasons

Years

Boston, MA the day's answers

All-time records

Every answer in words

August 2026 brought 0.98 in of precipitation in Boston, MA, the driest August since 2025, tied 7th driest of 155 (with 1910).
The hottest day of August 2026 in Boston, MA: 94°F on Friday 7 August 2026.
The coldest night of August 2026 in Boston, MA: a low of 62°F on Sunday 16 August 2026.
The wettest day of August 2026 in Boston, MA: 0.47 in on Monday 3 August 2026.