Average May Temperature in Spearfish by Year

This page contains a list of the average monthly high and low temperatures in Spearfish, South Dakota for the month of May each year between 1893 and 2023. It is based on NOAA data.

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What Was the Hottest May Ever in Spearfish?

1934 was the warmest May in the history of Spearfish, South Dakota. The average daily high temperature was 82.7 °F, and the average low was 53.1 °F.

What Was the Coldest May Ever in Spearfish?

2019 was the coolest May in the history of Spearfish, South Dakota. The average daily high temperature was 58.0 °F, and the average low was 38.1 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	13	70.3	47.8
2022	53	65.5	43.2
2021	71	64.2	42.3
2020	69	63.8	43.0
2019	115	58.0	38.1
2017	46	65.3	44.9
2016	30	70.9	42.8
2015	96	60.6	42.0
2014	88	61.5	42.5
2013	44	66.1	44.4
2012	27	69.3	44.5
2010	61	64.2	43.4
2009	22	70.2	46.0
2008	87	62.9	41.3
2007	10	71.5	47.4
2006	24	70.4	45.0
2005	56	65.1	43.4
2003	41	67.3	44.3
2002	62	66.8	40.9
1998	23	70.8	45.0
1997	63	64.3	43.1
1996	99	60.4	41.3
1995	94	61.2	42.1
1994	7	72.9	48.2
1993	26	67.3	46.8
1992	16	71.4	46.5
1991	42	65.4	45.9
1990	89	62.1	41.8
1989	45	67.1	43.4
1988	15	69.8	48.0
1987	19	68.6	48.5
1986	64	66.0	41.1
1985	12	73.9	44.4
1984	85	64.5	40.5
1983	86	64.7	39.8
1982	95	62.4	40.3
1981	72	65.0	41.4
1979	80	65.5	40.1
1978	58	64.3	43.6
1977	6	73.2	48.0
1976	47	67.3	42.5
1975	81	63.8	41.5
1974	77	64.9	41.0
1973	70	65.5	41.1
1972	67	63.3	43.5
1971	82	64.9	40.4
1970	36	70.1	42.2
1969	32	72.3	41.0
1968	102	63.5	38.0
1967	103	63.3	38.2
1966	35	72.7	40.0
1964	17	71.3	46.2
1963	29	69.9	43.9
1962	37	67.7	44.6
1961	49	67.8	41.6
1960	55	68.7	39.8
1959	65	65.4	41.6
1957	59	63.9	44.0
1956	33	67.8	45.4
1955	20	70.2	46.5
1954	73	65.1	41.1
1953	101	62.2	39.3
1951	60	66.3	41.4
1950	112	60.9	36.4
1947	76	67.0	38.9
1946	114	59.6	37.3
1945	111	61.4	37.3
1944	38	67.7	44.4
1943	106	62.4	38.7
1942	104	62.4	39.0
1941	9	73.3	45.9
1940	40	69.8	41.9
1939	8	74.9	45.6
1938	84	63.9	41.1
1936	2	80.0	49.4
1935	74	60.1	46.1
1934	1	82.7	53.1
1933	52	65.8	43.0
1932	18	72.0	45.2
1931	39	69.7	42.3
1930	78	64.4	41.5
1929	90	67.3	36.5
1928	11	72.1	46.7
1927	105	61.3	40.0
1926	25	69.5	45.6
1925	31	69.8	43.6
1924	97	63.7	38.3
1923	43	67.8	42.8
1922	51	65.9	43.4
1921	48	66.6	42.9
1920	113	66.6	30.4
1919	34	70.8	42.2
1918	50	67.4	42.0
1917	110	60.5	38.4
1916	107	61.6	39.3
1915	108	59.5	40.8
1914	54	66.6	41.9
1913	91	62.4	41.2
1912	75	64.1	41.9
1911	21	72.3	44.2
1910	57	66.8	41.6
1909	93	63.0	40.5
1908	92	63.9	39.6
1906	79	64.1	41.6
1905	109	59.9	39.2
1904	68	64.4	42.4
1903	98	61.2	40.6
1902	28	68.3	45.5
1901	4	73.0	49.4
1900	5	71.9	49.7
1898	100	59.6	42.0
1897	3	72.7	49.8
1895	83	63.1	42.0
1894	14	71.9	46.0
1893	66	65.5	41.3

Weather Station Details

Years	Station	Coordinates
1893–2024	Spearfish	location