Average April Temperature in Waterloo by Year

This page contains a list of the average monthly high and low temperatures in Waterloo, Iowa for the month of April each year between 1895 and 2023. It is based on NOAA data.

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What Was the Hottest April Ever in Waterloo?

1925 was the warmest April in the history of Waterloo, Iowa. The average daily high temperature was 71.5 °F, and the average low was 41.4 °F.

What Was the Coldest April Ever in Waterloo?

2018 was the coolest April in the history of Waterloo, Iowa. The average daily high temperature was 50.1 °F, and the average low was 26.0 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	34	63.4	37.2
2022	107	54.8	34.1
2021	27	62.6	39.0
2020	69	60.6	35.0
2019	48	61.3	37.6
2018	129	50.1	26.0
2017	23	61.9	40.7
2016	55	59.7	38.4
2015	40	62.6	36.7
2014	97	57.6	34.2
2013	114	54.1	34.3
2012	30	62.1	38.9
2011	82	57.7	36.6
2010	6	65.8	42.2
2009	86	59.1	34.5
2008	100	55.6	35.0
2007	99	57.6	33.8
2006	16	64.6	40.2
2005	14	64.9	40.2
2004	44	64.0	35.1
2003	37	63.1	37.2
2002	66	59.2	37.3
2001	13	64.6	40.6
2000	52	61.5	37.0
1999	35	60.3	40.1
1998	39	59.9	39.7
1997	110	56.2	32.5
1996	102	58.0	32.3
1995	104	55.5	33.8
1994	50	61.5	37.1
1993	98	56.5	35.3
1992	93	56.4	36.2
1991	36	60.5	39.9
1990	73	59.0	36.3
1989	87	58.5	35.0
1988	70	61.5	34.1
1987	19	65.5	38.1
1986	18	63.8	39.9
1985	8	64.9	42.6
1984	88	56.4	36.8
1983	118	52.7	34.0
1982	122	54.5	30.9
1981	12	64.4	41.1
1980	54	61.4	36.8
1979	111	53.9	34.8
1978	85	56.9	36.8
1977	20	64.9	38.5
1976	31	63.0	37.8
1975	119	51.3	34.3
1974	49	61.4	37.3
1973	101	54.5	35.9
1972	112	55.0	33.6
1971	90	60.0	32.9
1970	68	59.7	36.1
1969	61	59.5	37.4
1968	32	62.8	38.0
1967	71	58.3	37.1
1966	116	53.9	33.4
1965	113	54.3	34.3
1964	83	58.4	35.9
1963	33	62.0	38.7
1962	91	57.3	35.6
1961	127	51.5	32.0
1960	51	60.4	38.2
1959	76	58.5	36.5
1958	72	59.2	36.0
1957	59	59.3	38.4
1956	105	56.9	32.2
1955	3	66.6	43.1
1954	25	62.5	39.7
1953	121	52.1	33.4
1952	42	62.5	36.7
1951	106	54.0	35.0
1950	128	49.4	30.9
1949	62	62.6	34.3
1948	4	66.4	41.8
1947	95	56.4	36.0
1946	9	67.0	40.3
1945	56	60.0	38.0
1944	103	55.3	34.3
1943	67	60.2	35.8
1942	7	68.0	39.6
1941	5	65.2	43.0
1940	75	58.9	36.0
1939	78	59.3	35.4
1938	38	60.1	39.8
1937	77	57.0	37.7
1936	108	55.9	32.9
1935	89	56.3	36.8
1934	41	62.6	36.6
1933	63	59.3	37.5
1932	57	61.0	36.8
1931	22	64.6	38.0
1930	26	65.0	36.9
1929	28	61.6	39.9
1928	117	54.9	32.2
1927	58	58.3	39.4
1926	96	59.0	33.3
1925	1	71.5	41.4
1924	29	62.8	38.3
1923	74	60.0	35.2
1922	43	62.2	37.0
1921	15	64.8	39.9
1920	123	52.3	32.9
1919	60	59.2	38.2
1918	124	54.8	30.4
1917	109	54.1	34.6
1916	92	56.9	35.9
1915	2	68.8	42.7
1914	80	58.3	36.3
1913	47	60.5	38.4
1912	65	59.8	36.8
1911	115	54.0	33.9
1910	17	64.8	38.9
1909	125	52.2	32.7
1908	46	61.6	37.4
1907	126	52.2	32.0
1906	24	63.0	39.3
1905	81	59.0	35.4
1904	120	53.1	32.4
1903	53	60.1	38.2
1902	79	60.0	34.6
1901	45	61.6	37.5
1900	21	64.4	38.6
1899	64	60.4	36.2
1898	84	59.4	34.6
1897	94	56.3	36.2
1896	10	65.7	41.4
1895	11	67.0	38.7

Weather Station Details

Years	Station	Coordinates
1950–2024	Waterloo Municipal Airport	location
1895–1950	Waterloo	location