Average Temperature in Iowa by Year

This page is a list of the average statewide temperature in the U.S. state of Iowa for each year from 1895–2023. It is a statewide average over the entire territory of the state, based on data from the NOAA.

State:

Month:

What Was the Hottest Year in Iowa History?

2012 was the warmest year in Iowa history. Statewide, the average daily high temperature was 63.6 °F, and the average low was 40.5 °F.

What Was the Coldest Year in Iowa History?

1917 was the coolest year in Iowa history. Statewide, the average daily high temperature was 55.3 °F, and the average low was 32.7 °F.

Click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	7	61.4	39.7
2022	66	58.7	36.3
2021	10	60.3	39.6
2020	22	59.5	38.8
2019	88	56.5	37.1
2018	66	57.2	37.8
2017	10	60.4	39.7
2016	6	60.6	40.8
2015	19	59.4	39.1
2014	118	55.7	35.2
2013	89	56.9	36.4
2012	1	63.6	40.5
2011	38	58.6	38.2
2010	43	58.4	38.0
2009	89	56.9	36.5
2008	115	56.1	35.7
2007	29	59.0	38.7
2006	8	60.8	40.0
2005	16	60.1	39.1
2004	36	58.9	38.1
2003	52	58.9	36.9
2002	22	59.9	38.4
2001	24	59.3	38.8
2000	32	59.3	38.0
1999	15	60.3	39.0
1998	5	60.3	41.5
1997	81	57.1	37.1
1996	122	55.3	35.0
1995	79	57.1	37.4
1994	66	58.1	36.8
1993	117	54.8	36.5
1992	55	57.7	38.0
1991	32	58.8	38.4
1990	17	60.1	38.8
1989	95	57.9	35.3
1988	30	60.8	36.6
1987	3	61.9	40.5
1986	32	58.5	38.7
1985	115	56.5	35.3
1984	55	58.1	37.5
1983	60	57.2	38.1
1982	111	56.1	36.1
1981	26	60.0	38.0
1980	48	58.9	37.1
1979	125	55.7	34.6
1978	120	55.9	34.7
1977	38	59.2	37.5
1976	74	59.4	35.3
1975	74	57.8	37.0
1974	60	58.2	37.0
1973	30	58.4	39.1
1972	118	55.7	35.3
1971	74	58.2	36.7
1970	85	57.6	36.3
1969	114	56.3	35.8
1968	60	58.6	36.6
1967	95	57.8	35.5
1966	102	57.7	35.0
1965	89	57.3	36.2
1964	36	59.8	37.3
1963	59	58.8	36.6
1962	100	56.9	36.0
1961	89	57.3	36.1
1960	111	56.7	35.5
1959	85	57.3	36.5
1958	85	57.9	35.8
1957	66	57.9	37.2
1956	46	59.9	36.4
1955	52	59.6	36.2
1954	19	60.1	38.4
1953	24	60.5	37.7
1952	55	58.9	36.7
1951	128	54.4	34.2
1950	127	56.1	33.5
1949	48	59.4	36.6
1948	55	59.0	36.5
1947	66	58.0	37.0
1946	19	60.5	38.1
1945	102	56.9	35.9
1944	48	58.2	37.8
1943	100	57.6	35.4
1942	60	58.0	37.3
1941	14	60.2	39.4
1940	95	57.3	35.9
1939	13	61.9	37.8
1938	10	61.0	39.0
1937	106	57.2	35.3
1936	79	59.0	35.6
1935	74	57.5	37.2
1934	9	62.2	38.2
1933	17	61.2	37.8
1932	84	58.0	36.1
1931	2	63.1	41.0
1930	26	60.6	37.3
1929	122	56.0	34.4
1928	43	59.2	37.2
1927	60	58.5	36.7
1926	81	57.8	36.3
1925	66	59.1	35.9
1924	125	56.1	34.1
1923	52	58.9	36.8
1922	26	60.3	37.7
1921	4	62.1	40.0
1920	81	57.7	36.5
1919	66	58.2	36.8
1918	46	59.7	36.6
1917	129	55.3	32.7
1916	106	57.7	34.9
1915	89	56.8	36.6
1914	43	59.4	37.0
1913	32	60.0	37.3
1912	122	56.3	34.1
1911	38	59.6	37.2
1910	60	59.4	35.8
1909	106	56.6	36.0
1908	42	59.3	37.4
1907	102	57.1	35.6
1906	66	58.2	36.7
1905	109	57.2	35.4
1904	120	56.4	34.2
1903	109	56.9	35.6
1902	95	57.1	36.1
1901	48	59.6	36.3
1900	38	59.4	37.4
1899	102	57.8	35.1
1898	89	57.6	35.8
1897	95	57.7	35.5
1896	74	58.4	36.4
1895	111	58.3	33.9