Bismarck, ND: August

31 August 2026: August 2026 averaged 71°F in Bismarck, ND, the warmest August since 2022, tied 38th warmest of 152 (with 2013, 1948 and 1941).

August 2026

Mean temperature: 71°F; Warmest since 2022; 38th warmest of 152
Precipitation: 1.45 in; Driest since 2022; 71st driest of 152

A normal August in Bismarck, ND (1991 to 2020): a mean temperature of 69.6°F, between 66.8°F and 72.6°F in eight years of ten and 1.94 in of precipitation, between 0.55 in and 5.11 in in eight years of ten.

The mean temperature of every August in Bismarck, ND since 1875: 71°F in 2026; the highest is 75.6°F, in 2003.

Normal range, 66.8 to 72.6°F

Every year, ranked, as a table

Every August in Bismarck, ND from 1875 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	71	38	85.7	30	56.4	50	1.45	81
2025	69.5	66	81.5	90	57.4	28	1.70	69
2024	68.6	82	80.4	101	56.8	39	2.93	28
2023	70.6	46	82.1	79	59	9	3.06	24
2022	73.6	7	87.1	16	60.1	3	1.20	94
2021	73.1	8	87.8	12	58.5	13	1.07	104
2020	73.1	8	87.9	11	58.4	16	0.59	132
2019	67.5	93	78.1	132	56.8	39	5.32	5
2018	70.7	43	85.2	41	56.2	55	1.04	106
2017	67.1	105	79.7	110	54.6	93	5.09	6
2016	68.9	76	82.7	71	55	80	1.88	59
2015	70.2	52	85.4	38	55	80	1.41	84
2014	68.7	81	79.3	114	58	17	4.75	12
2013	71	38	85.4	38	56.6	46	1.37	86
2012	67.7	90	82.6	73	52.7	124	2.33	45
2011	69.2	72	81.7	87	56.7	44	4.02	15
2010	71.1	37	84.6	45	57.6	24	2.74	35
2009	66.8	109	80.2	105	53.4	116	0.58	134
2008	71.5	27	85.7	30	57.4	28	1.13	99
2007	67.1	105	80	108	54.3	102	3.26	21
2006	71.5	27	85.8	28	57.3	32	2.50	41
2005	68.1	86	82	81	54.3	102	2.87	33
2004	64.4	145	78	136	50.9	147	2.29	47
2003	75.6	1	91	2	60.1	3	0.26	147
2002	69.2	72	83.7	60	54.7	89	2.39	44
2001	72.5	17	87.6	14	57.5	26	trace	152
2000	70.8	42	84.5	47	57.2	34	1.00	110
1999	69.4	69	82	81	56.8	39	7.91	2
1998	72.4	18	85.4	38	59.5	7	9.29	1
1997	69.7	61	84.5	47	54.9	86	1.07	104
1996	71.5	27	87	17	56.1	57	2.99	26
1995	71.4	31	85.6	35	57.2	34	1.99	54
1994	67.5	93	82.7	71	52.2	134	0.33	142
1993	66.6	117	78.6	120	54.6	93	1.89	58
1992	64.2	148	78.3	129	50.1	149	0.98	111
1991	73.7	5	88.9	5	58.5	13	1.77	62
1990	71.8	21	86.5	21	57.1	37	1.37	86
1989	69.6	64	83.6	61	55.6	66	1.62	72
1988	69.5	66	84.5	47	54.4	99	2.19	50
1987	64.9	138	77.4	140	52.4	130	3.03	25
1986	65.5	131	78.6	120	52.4	130	1.61	75
1985	64.3	146	76.4	147	52.1	136	4.61	13
1984	71.6	24	86.5	21	56.6	46	0.87	116
1983	74.8	3	90.8	3	58.8	10	0.87	116
1982	67.5	93	81.4	92	53.6	113	1.52	78
1981	70.1	55	82.8	70	57.4	28	3.32	20
1980	65.7	129	76.9	143	54.5	95	5.03	8
1979	65.7	129	78.6	120	52.8	123	1.73	65
1978	68.1	86	83.8	57	52.5	127	1.21	92
1977	62	152	75.9	149	48.1	152	1.92	56
1976	72.8	10	88.9	5	56.8	39	0.32	143
1975	66.8	109	79.9	109	53.7	112	0.64	126
1974	63	151	77.6	139	48.3	151	1.52	78
1973	72	20	88.8	8	55.2	76	0.30	145
1972	70.7	43	85.1	43	56.4	50	1.70	69
1971	71.5	27	88.1	10	55	80	0.03	151
1970	69.8	59	86.3	23	53.4	116	0.13	150
1969	73.8	4	89.6	4	57.9	20	0.92	115
1968	64.5	143	78.1	132	51	144	4.56	14
1967	67.4	100	83.8	57	51	144	1.21	92
1966	64.3	146	78.2	130	50.4	148	2.25	48
1965	66.8	109	80.3	103	53.3	118	3.39	19
1964	64.8	139	80.4	101	49.3	150	0.76	120
1963	69.1	74	83.3	65	54.9	86	1.39	85
1962	70.2	52	85.7	30	54.7	89	1.04	106
1961	73.7	5	91.7	1	55.6	66	0.43	138
1960	70.7	43	85.7	30	55.6	66	3.81	16
1959	72.8	10	88.3	9	57.2	34	1.15	97
1958	71.6	24	87.7	13	55.5	69	0.71	122
1957	69.5	66	81.1	93	58	17	1.58	76
1956	67.6	92	81	95	54.3	102	2.93	28
1955	72.7	13	87	17	58.5	13	1.04	106
1954	68.2	85	80.6	99	55.8	62	2.68	39
1953	71.7	22	85.8	28	57.6	24	0.94	114
1952	68.4	84	83.3	65	53.6	113	0.61	129
1951	65.4	133	76.9	143	54	108	4.89	9
1950	66.5	118	80.9	96	52	138	1.11	103
1949	72.4	18	87.5	15	57.4	28	3.25	22
1948	71	38	85.6	35	56.3	52	1.18	95
1947	72.6	15	86.6	19	58.6	12	1.13	99
1946	66.8	109	80.9	96	52.7	124	1.12	101
1945	69	75	83	69	55	80	1.76	64
1944	67.4	100	79.5	112	55.2	76	5.05	7
1943	69.3	70	82.4	76	56.3	52	2.72	36
1942	68	88	80.6	99	55.3	74	1.17	96
1941	71	38	84.3	54	57.8	21	2.91	31
1940	69.7	61	84.1	56	55.4	71	0.32	143
1939	69.9	57	84.4	52	55.4	71	1.81	61
1938	71.4	31	86.3	23	56.5	48	0.84	118
1937	75.4	2	88.9	5	62	1	1.12	101
1936	72.7	13	85.5	37	59.8	5	0.62	128
1935	68	88	81.7	87	54.2	105	1.14	98
1934	69.9	57	83.4	64	56.3	52	0.50	136
1933	69.3	70	82.6	73	56	59	0.48	137
1932	69.7	61	82.5	75	56.9	38	0.61	129
1931	67.5	93	79.1	116	55.9	60	1.58	76
1930	71.3	34	83.8	57	58.8	10	1.71	67
1929	70.6	46	85.9	26	55.3	74	0.75	121
1928	66.7	115	79	117	54.4	99	2.11	51
1927	66.4	121	78.1	132	54.7	89	3.12	23
1926	66.9	107	78.5	124	55.2	76	1.34	90
1925	69.6	64	84.5	47	54.7	89	1.69	71
1924	65.9	126	78.5	124	53.3	118	1.91	57
1923	65.4	133	77	142	53.8	111	0.63	127
1922	72.6	15	86.2	25	59.1	8	0.22	148
1921	70.2	52	84.6	45	55.8	62	0.18	149
1920	70.4	50	84.4	52	56.5	48	0.59	132
1919	70.6	46	84.5	47	56.7	44	1.46	80
1918	68.9	76	81.9	84	55.8	62	2.62	40
1917	66.5	118	80.9	96	52.2	134	1.37	86
1916	67.4	100	80.3	103	54.5	95	1.97	55
1915	65.2	135	78.1	132	52.3	133	3.44	18
1914	64.5	143	76.6	146	52.4	130	2.02	53
1913	71.3	34	85.7	30	56.8	39	0.77	119
1912	66.1	124	77.8	138	54.5	95	2.33	45
1911	63.6	149	75.7	150	51.5	141	2.72	36
1910	64.8	139	78.2	130	51.4	142	1.26	91
1909	71.7	22	85.9	26	57.5	26	4.77	11
1908	65.2	135	79.3	114	51	144	2.44	42
1907	67.2	104	82	81	52.5	127	0.61	129
1906	67.5	93	79	117	55.9	60	2.04	52
1905	68.8	79	81.5	90	56.1	57	1.71	67
1904	65.5	131	78.4	128	52.5	127	0.68	124
1903	64.7	141	75.5	151	53.9	109	5.59	4
1902	66.3	123	78.5	124	54.1	107	1.84	60
1901	69.8	59	82.3	77	57.3	32	1.01	109
1900	72.8	10	85.2	41	60.4	2	2.92	30
1899	66.9	107	79.5	112	54.4	99	0.97	113
1898	68.8	79	82.1	79	55.5	69	1.35	89
1897	65.9	126	78.6	120	53.1	122	2.25	48
1896	67.3	103	81.8	86	52.7	124	1.77	62
1895	67.5	93	83.6	61	51.3	143	0.40	140
1894	71.4	31	86.6	19	56.2	55	0.42	139
1893	68.9	76	83.3	65	54.5	95	0.67	125
1892	68.5	83	81.6	89	55.4	71	2.40	43
1891	66	125	78.8	119	53.2	120	1.43	83
1890	66.8	109	81.9	84	51.7	139	0.69	123
1889	70.3	51	84.8	44	55.8	62	0.53	135
1888	64.6	142	77.2	141	52.1	136	1.73	65
1887	65.1	137	76.1	148	54.2	105	1.62	72
1886	70.5	49	83.3	65	57.7	23	1.45	81
1885	63.4	150	75.1	152	51.7	139	1.62	72
1884	66.5	118	78	136	55	80	3.80	17
1883	66.7	115	78.5	124	54.8	88	0.98	111
1882	71.6	24	83.5	63	59.7	6	0.30	145
1881	70	56	82.2	78	57.8	21	2.98	27
1880	65.9	126	76.8	145	55	80	4.82	10
1879	66.8	109	80.2	105	53.5	115	2.69	38
1878	71.2	36	84.3	54	58	17	2.79	34
1877	67.5	93	81.1	93	53.9	109	0.35	141
1876	67.7	90	80.2	105	55.2	76	6.55	3
1875	66.4	121	79.7	110	53.2	120	2.89	32

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2003	75.6
1937	75.4
1983	74.8
1969	73.8
1991	73.7
1961	73.7
2022	73.6
2021	73.1
2020	73.1
1976	72.8
More years share the last value

Coldest
Year	Mean, °F
1977	62
1974	63
1885	63.4
1911	63.6
1992	64.2
1985	64.3
1966	64.3
2004	64.4
1968	64.5
1914	64.5

Wettest
Year	Precipitation, in
1998	9.29
1999	7.91
1876	6.55
1903	5.59
2019	5.32
2017	5.09
1944	5.05
1980	5.03
1951	4.89
1880	4.82

Driest
Year	Precipitation, in
2001	trace
1971	0.03
1970	0.13
1921	0.18
1922	0.22
2003	0.26
1973	0.30
1882	0.30
1976	0.32
1940	0.32

The hottest, coldest and wettest days

Hottest day: 105°F; 2 August 2026
Coldest night: 44°F; 5 August 2026
Wettest day: 0.49 in; 30 August 2026

Every month, season and year

Months

Seasons

Years

Bismarck, ND the day's answers

All-time records

Every answer in words

August 2026 brought 1.45 in of precipitation in Bismarck, ND, the driest August since 2022, tied 71st driest of 152 (with 1886).
The hottest day of August 2026 in Bismarck, ND: 105°F on Sunday 2 August 2026.
The coldest night of August 2026 in Bismarck, ND: a low of 44°F on Wednesday 5 August 2026.
The wettest day of August 2026 in Bismarck, ND: 0.49 in on Sunday 30 August 2026.