Most Yearly Precipitation in Waterloo History

This is a list of the largest annual precipitation totals ever recorded in Waterloo, Iowa history from 1895–2024.

What Was the Wettest Year in Waterloo History?

According to NOAA records, the most precipitation that Waterloo, Iowa has ever received in a single calendar year is 54.2 inches which occurred in 2018.

Year to date though April 12, 2024: 5.8 inches

Waterloo Precipitation by Year

Years marked with a gold background have more than 5% incomplete data
Click column headers to sort

Year	Rank	Precipitation (inches)
2024	130	5.8
2023	73	22.6
2022	35	34.0
2021	68	24.9
2020	27	35.8
2019	10	41.9
2018	1	54.2
2017	53	29.9
2016	11	41.8
2015	18	39.0
2014	32	34.9
2013	13	40.9
2012	70	24.1
2011	49	30.5
2010	8	43.1
2009	16	39.8
2008	5	46.0
2007	9	42.9
2006	37	33.6
2005	48	30.7
2004	59	28.3
2003	62	26.9
2002	61	27.4
2001	39	32.2
2000	40	32.2
1999	21	38.5
1998	15	40.1
1997	45	31.6
1996	52	29.9
1995	56	29.5
1994	30	35.3
1993	2	53.1
1992	47	31.0
1991	7	43.2
1990	12	41.5
1989	86	19.6
1988	88	19.0
1987	41	32.2
1986	23	36.7
1985	50	30.2
1984	34	34.5
1983	25	36.5
1982	31	35.1
1981	54	29.6
1980	44	31.7
1979	22	38.1
1978	29	35.4
1977	36	34.0
1976	74	22.3
1975	69	24.1
1974	55	29.6
1973	20	38.5
1972	28	35.6
1971	57	29.4
1970	51	30.1
1969	33	34.5
1968	6	44.6
1967	58	28.7
1966	14	40.7
1965	3	50.8
1964	26	35.9
1963	38	32.7
1962	43	31.9
1961	4	47.4
1960	24	36.7
1959	19	38.9
1958	64	25.6
1957	60	27.8
1956	72	22.8
1955	82	20.5
1954	46	31.4
1953	66	25.3
1952	65	25.5
1951	17	39.5
1950	81	20.6
1949	76	21.5
1948	63	26.6
1947	77	21.2
1946	114	12.8
1945	117	11.8
1944	101	15.7
1943	116	11.9
1942	75	21.8
1941	95	16.5
1940	93	16.8
1939	128	6.9
1938	78	21.1
1937	111	13.8
1936	98	16.1
1935	80	20.9
1934	115	12.5
1933	89	18.6
1932	125	9.5
1931	105	15.1
1930	109	13.9
1929	123	9.7
1928	84	20.1
1927	97	16.1
1926	122	9.8
1925	119	10.9
1924	109	13.9
1923	92	17.9
1922	94	16.6
1921	108	13.9
1920	79	20.9
1919	67	24.9
1918	106	15.0
1917	112	13.5
1916	118	11.7
1915	83	20.2
1914	102	15.6
1913	104	15.1
1912	91	17.9
1911	107	14.5
1910	129	6.3
1909	103	15.3
1908	113	13.0
1907	99	15.8
1906	100	15.7
1905	85	19.9
1904	121	10.7
1903	71	23.1
1902	42	32.0
1901	126	9.0
1900	90	18.4
1899	96	16.5
1898	120	10.7
1897	126	9.0
1896	87	19.2
1895	124	9.5