Average September Temperature in Williston by Year

This page contains a list of the average monthly high and low temperatures in Williston, North Dakota for the month of September each year between 1894 and 2023. It is based on NOAA data.

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What Was the Hottest September Ever in Williston?

2009 was the warmest September in the history of Williston, North Dakota. The average daily high temperature was 82.9 °F, and the average low was 51.4 °F.

What Was the Coldest September Ever in Williston?

1965 was the coolest September in the history of Williston, North Dakota. The average daily high temperature was 57.0 °F, and the average low was 34.8 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	9	76.3	51.8
2022	5	80.0	49.6
2021	3	81.9	49.5
2020	38	76.1	44.2
2019	41	71.0	48.9
2018	94	68.5	43.0
2017	47	71.5	47.8
2016	23	75.3	49.6
2015	11	79.6	48.0
2014	37	74.6	45.8
2013	4	78.8	51.2
2012	6	81.6	47.3
2011	13	79.5	47.9
2010	66	70.1	45.8
2009	1	82.9	51.4
2008	49	73.7	45.2
2007	24	77.9	46.1
2006	52	72.9	45.2
2005	20	78.5	47.1
2004	27	77.4	46.1
2003	44	74.9	44.7
2002	22	78.5	46.6
2001	21	77.5	47.9
2000	36	74.2	46.3
1999	82	70.8	42.1
1998	2	82.3	50.7
1997	16	79.4	47.2
1996	75	69.0	44.9
1995	59	73.7	42.9
1994	19	78.4	47.4
1993	98	69.3	41.0
1992	64	73.1	43.0
1991	53	72.2	45.9
1990	8	81.6	46.7
1989	43	76.6	43.1
1988	62	72.6	43.5
1987	28	77.4	46.0
1986	110	63.3	43.8
1985	115	63.6	42.3
1984	120	63.5	40.8
1983	58	72.1	44.8
1982	61	72.9	43.3
1981	29	78.3	45.0
1980	63	71.2	44.9
1979	18	79.2	47.0
1978	26	76.1	47.4
1977	86	67.8	44.9
1976	25	79.0	44.8
1975	76	69.8	43.8
1974	97	69.6	41.1
1973	77	69.2	44.4
1972	104	67.1	41.7
1971	68	70.1	44.9
1970	71	71.0	43.6
1969	30	76.7	46.4
1968	55	72.9	44.9
1967	14	78.5	48.8
1966	31	76.4	46.4
1965	127	57.0	34.8
1964	100	68.7	41.3
1963	15	77.6	49.4
1962	79	71.6	42.0
1961	122	63.6	39.3
1960	40	74.7	45.2
1958	54	73.2	44.8
1957	90	69.5	42.8
1956	89	69.8	42.8
1955	87	69.3	43.4
1954	101	65.1	44.2
1953	65	70.5	45.5
1952	33	74.2	47.8
1951	113	63.1	43.1
1950	73	68.8	45.7
1949	88	71.4	41.3
1948	17	78.2	48.2
1947	99	66.9	43.4
1946	83	67.9	44.9
1945	114	64.7	41.4
1944	74	70.2	44.1
1943	80	70.0	43.3
1942	95	66.9	44.0
1941	107	64.1	43.8
1940	12	77.4	50.1
1939	50	73.0	45.8
1938	10	77.3	50.4
1937	51	71.8	47.1
1936	42	73.9	45.9
1935	60	72.3	44.1
1934	119	63.4	41.0
1933	45	72.7	46.8
1932	70	71.5	43.2
1931	34	73.7	47.9
1930	85	68.9	43.8
1929	118	62.8	41.7
1928	108	68.4	39.0
1927	93	66.9	44.9
1926	124	61.4	40.5
1925	92	66.9	45.0
1924	91	69.7	42.4
1923	48	72.5	46.6
1922	39	73.3	46.9
1921	96	66.2	44.7
1920	56	71.7	45.8
1919	67	68.8	46.9
1918	116	65.4	39.7
1917	81	70.0	43.0
1916	103	67.2	41.6
1915	117	62.4	42.2
1914	57	72.0	45.1
1913	69	70.9	43.9
1912	126	61.2	38.8
1911	105	65.3	43.3
1910	106	68.4	39.6
1909	35	75.0	46.0
1908	46	74.1	45.3
1907	123	65.4	37.4
1906	32	75.9	46.8
1903	125	62.3	39.6
1902	109	69.3	38.0
1901	121	62.3	40.7
1900	111	64.4	42.4
1899	72	72.7	41.8
1898	84	70.5	42.3
1897	7	80.5	48.0
1896	112	66.6	40.2
1895	78	71.1	42.5
1894	102	68.0	40.8

Weather Station Details

Years	Station	Coordinates
1957–2024	Williston Experimental Farm	location
1894–1956	Sloulin Field International Airport	location