Most Yearly Precipitation in Riverton History

This is a list of the largest annual precipitation totals ever recorded in Riverton, Wyoming history from 1907–2024.

What Was the Wettest Year in Riverton History?

According to NOAA records, the most precipitation that Riverton, Wyoming has ever received in a single calendar year is 20.6 inches which occurred in 1912.

Year to date though April 25, 2024: 2.2 inches

Riverton 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	112	2.2
2023	4	15.5
2022	18	11.4
2021	56	8.5
2020	99	5.6
2019	20	11.2
2018	50	8.9
2017	3	15.9
2016	5	15.2
2015	28	10.3
2014	64	8.0
2013	42	9.5
2012	107	4.0
2011	25	10.7
2010	23	10.9
2009	15	11.6
2008	39	9.6
2007	53	8.7
2006	102	5.1
2005	65	8.0
2004	37	9.8
2003	33	10.0
2002	73	7.6
2001	103	5.1
2000	89	6.5
1999	48	9.0
1998	9	13.4
1997	35	10.0
1996	62	8.1
1995	8	13.4
1994	80	7.0
1993	7	13.5
1992	60	8.2
1991	41	9.5
1990	97	5.7
1989	108	3.8
1988	110	2.8
1987	100	5.5
1986	90	6.2
1985	91	6.1
1984	82	6.8
1983	61	8.2
1982	67	8.0
1981	92	6.1
1980	58	8.2
1979	75	7.1
1978	31	10.1
1977	30	10.1
1976	81	6.8
1975	52	8.8
1974	106	4.1
1973	24	10.8
1972	46	9.1
1971	10	13.1
1970	83	6.7
1969	84	6.7
1968	66	8.0
1967	21	11.1
1966	98	5.7
1965	71	7.6
1964	74	7.2
1963	44	9.3
1962	88	6.6
1961	93	6.1
1960	87	6.6
1959	94	6.1
1958	43	9.4
1957	14	11.9
1956	85	6.7
1955	63	8.1
1954	104	4.9
1953	70	7.7
1952	57	8.2
1951	69	7.8
1950	54	8.5
1949	76	7.1
1948	86	6.7
1947	11	12.5
1946	34	10.0
1945	17	11.5
1944	12	12.2
1943	68	7.8
1942	16	11.6
1941	6	14.7
1940	59	8.2
1939	79	7.0
1938	45	9.2
1937	26	10.7
1936	55	8.5
1935	49	9.0
1934	78	7.1
1933	47	9.1
1932	95	6.1
1931	72	7.6
1930	22	10.9
1929	77	7.1
1928	32	10.0
1927	36	9.9
1926	51	8.9
1925	40	9.5
1924	27	10.6
1923	2	18.4
1922	96	5.9
1921	29	10.1
1920	38	9.8
1919	19	11.3
1918	111	2.6
1917	114	0.0
1916	114	0.0
1915	114	0.0
1914	114	0.0
1913	114	0.0
1912	1	20.6
1911	105	4.2
1910	113	1.9
1909	109	3.4
1908	13	12.0
1907	101	5.3