Most Yearly Precipitation in Sioux City History

This is a list of the largest annual precipitation totals ever recorded in Sioux City, Iowa history from 1948–2024.

What Was the Wettest Year in Sioux City History?

According to NOAA records, the most precipitation that Sioux City, Iowa has ever received in a single calendar year is 41.4 inches which occurred in 2014.

Year to date though April 26, 2024: 8.4 inches

Sioux City Precipitation by Year

Years marked with a gold background have more than 5% incomplete data
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Year	Rank	Precipitation (inches)
2024	77	8.4
2023	35	27.6
2022	74	15.3
2021	60	23.0
2020	66	20.1
2019	8	33.9
2018	3	37.8
2017	27	29.7
2016	14	32.3
2015	4	35.1
2014	1	41.4
2013	38	26.7
2012	53	24.1
2011	52	24.1
2010	15	32.1
2009	11	32.8
2008	18	31.6
2007	2	39.6
2006	36	27.3
2005	42	26.0
2004	43	25.5
2003	33	28.2
2002	46	25.1
2001	23	30.5
2000	55	23.8
1999	28	29.5
1998	22	30.8
1997	69	18.4
1996	19	31.6
1995	50	24.4
1994	40	26.2
1993	13	32.4
1992	26	30.0
1991	41	26.2
1990	49	24.6
1989	68	19.4
1988	58	23.3
1987	47	24.7
1986	17	31.9
1985	57	23.4
1984	7	34.0
1983	32	28.3
1982	24	30.5
1981	65	20.4
1980	73	17.7
1979	12	32.5
1978	62	22.1
1977	5	35.0
1976	76	14.3
1975	39	26.3
1974	71	18.0
1973	34	27.9
1972	9	33.7
1971	67	19.6
1970	29	28.8
1969	30	28.4
1968	51	24.2
1967	61	22.4
1966	64	21.5
1965	31	28.4
1964	37	27.3
1963	59	23.0
1962	10	32.9
1961	20	31.5
1960	44	25.4
1959	25	30.3
1958	70	18.3
1957	16	32.0
1956	72	17.8
1955	75	14.7
1954	48	24.7
1953	54	23.9
1952	56	23.7
1951	6	34.9
1950	63	21.7
1949	21	31.1
1948	45	25.3