Average September Temperature in Mandan by Year

This page contains a list of the average monthly high and low temperatures in Mandan, North Dakota for the month of September each year between 1913 and 2023. It is based on NOAA data.

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What Was the Hottest September Ever in Mandan?

1948 was the warmest September in the history of Mandan, North Dakota. The average daily high temperature was 81.3 °F, and the average low was 49.8 °F.

What Was the Coldest September Ever in Mandan?

1965 was the coolest September in the history of Mandan, North Dakota. The average daily high temperature was 55.5 °F, and the average low was 35.2 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	15	73.8	49.9
2022	21	75.4	46.3
2021	10	77.7	47.6
2020	64	71.2	43.8
2019	54	68.8	47.9
2018	94	65.7	44.7
2017	50	71.3	46.1
2016	35	71.1	48.4
2015	4	78.1	50.1
2014	51	71.8	45.5
2013	9	74.5	50.9
2012	53	75.8	41.2
2011	67	72.5	42.3
2010	91	67.3	43.9
2009	3	77.7	51.0
2008	61	71.6	43.9
2007	38	72.9	46.0
2006	76	68.3	44.4
2005	20	75.5	46.4
2004	32	72.6	47.7
2003	47	72.2	45.3
2002	25	74.2	47.0
2001	36	72.3	47.1
2000	43	72.9	44.9
1999	97	66.2	43.3
1998	5	78.1	49.5
1997	13	77.3	47.0
1996	60	69.9	45.6
1995	65	71.6	43.2
1994	19	75.1	46.9
1993	104	67.2	39.8
1992	87	69.3	42.5
1991	48	71.6	45.9
1990	17	75.7	47.3
1989	58	72.0	43.6
1988	78	70.1	42.3
1987	44	72.2	45.4
1986	103	62.4	44.8
1985	106	63.1	43.2
1984	108	65.5	39.1
1983	89	67.8	43.8
1982	75	69.6	43.9
1981	56	71.8	44.4
1980	73	69.3	44.8
1979	28	75.7	44.9
1978	11	77.2	47.9
1977	79	66.4	46.0
1976	46	76.0	41.5
1975	92	68.9	42.2
1973	83	68.3	43.7
1972	96	67.9	41.5
1971	86	68.8	43.0
1970	62	71.5	43.7
1969	27	75.5	45.2
1968	81	69.7	42.6
1967	34	74.0	46.0
1966	45	73.2	44.4
1965	109	55.5	35.2
1964	100	69.0	39.7
1963	16	75.6	47.7
1962	77	71.6	41.1
1961	101	65.7	42.0
1960	40	73.8	44.4
1959	59	70.7	44.9
1958	26	75.5	45.5
1957	90	68.9	42.6
1956	95	68.2	41.7
1955	63	72.0	43.1
1954	72	68.3	45.8
1953	39	73.6	45.2
1952	12	77.4	47.3
1951	102	64.2	43.3
1950	52	71.5	45.7
1949	80	70.6	41.7
1948	1	81.3	49.8
1947	57	71.9	43.8
1946	41	72.3	45.8
1945	93	69.1	41.4
1944	66	69.9	44.9
1943	68	71.4	43.2
1942	88	68.8	43.0
1941	69	68.8	45.7
1940	2	80.5	50.1
1939	33	74.6	45.4
1938	8	76.3	49.5
1937	37	72.4	46.6
1936	18	74.4	48.1
1935	22	75.7	45.9
1934	99	68.0	40.9
1933	6	78.1	48.9
1932	49	74.2	43.3
1931	7	77.5	48.9
1930	71	70.1	44.1
1929	105	64.2	42.1
1928	85	69.4	42.5
1927	55	71.9	44.7
1926	98	67.9	41.5
1925	30	73.5	46.8
1924	70	71.0	43.3
1923	23	74.0	47.5
1922	14	76.0	48.3
1921	31	73.0	47.3
1920	29	73.9	46.7
1919	24	73.7	47.7
1918	107	67.4	38.4
1917	74	70.2	43.7
1916	82	69.2	43.1
1915	84	66.7	45.2
1913	42	72.7	45.3

Weather Station Details

Years	Station	Coordinates
1913–2024	Mandan Experimental Station	location