Average Precipitation in Wyoming by Year

This page is a list of the average statewide precipitation in the U.S. state of Wyoming 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 Rainiest Year in Wyoming History?

1927 was the wettest year in Wyoming history with an average annual statewide precipitation of 20.5 inches.

What Was the Driest Year in Wyoming History?

2012 was the driest year in Wyoming history with an average annual statewide precipitation of 11.0 inches.

Click column headers to sort

Year	Rank	Precipitation (in)
2023	11	18.9
2022	89	14.7
2021	94	14.4
2020	125	11.7
2019	22	18.3
2018	64	16.1
2017	15	18.7
2016	35	17.3
2015	48	16.7
2014	25	18.1
2013	58	16.3
2012	129	11.0
2011	17	18.6
2010	36	17.3
2009	43	17.0
2008	66	16.1
2007	83	15.1
2006	113	12.7
2005	60	16.3
2004	92	14.6
2003	81	15.1
2002	122	12.0
2001	123	11.9
2000	96	14.3
1999	67	15.9
1998	6	19.6
1997	29	18.0
1996	34	17.3
1995	2	20.3
1994	101	14.0
1993	18	18.5
1992	86	15.0
1991	40	17.1
1990	77	15.4
1989	84	15.0
1988	127	11.4
1987	87	14.9
1986	30	17.9
1985	98	14.2
1984	75	15.6
1983	13	18.8
1982	7	19.5
1981	69	15.9
1980	68	15.9
1979	116	12.6
1978	20	18.4
1977	78	15.4
1976	93	14.5
1975	41	17.1
1974	112	12.9
1973	23	18.3
1972	45	17.0
1971	16	18.6
1970	56	16.4
1969	100	14.1
1968	50	16.7
1967	9	19.1
1966	114	12.7
1965	47	16.7
1964	51	16.7
1963	54	16.5
1962	63	16.1
1961	90	14.7
1960	120	12.0
1959	103	13.9
1958	95	14.4
1957	12	18.9
1956	117	12.6
1955	62	16.2
1954	119	12.1
1953	102	14.0
1952	111	13.1
1951	55	16.4
1950	57	16.4
1949	52	16.6
1948	71	15.8
1947	14	18.7
1946	27	18.1
1945	5	19.8
1944	28	18.0
1943	85	15.0
1942	31	17.6
1941	3	20.2
1940	61	16.2
1939	128	11.3
1938	38	17.1
1937	26	18.1
1936	70	15.9
1935	104	13.8
1934	121	12.0
1933	108	13.5
1932	80	15.2
1931	115	12.7
1930	49	16.7
1929	42	17.0
1928	65	16.1
1927	1	20.5
1926	46	16.8
1925	37	17.2
1924	105	13.8
1923	4	20.0
1922	73	15.7
1921	82	15.1
1920	76	15.6
1919	118	12.2
1918	44	17.0
1917	88	14.8
1916	107	13.6
1915	8	19.4
1914	109	13.2
1913	91	14.6
1912	21	18.4
1911	106	13.7
1910	126	11.7
1909	32	17.6
1908	24	18.1
1907	59	16.3
1906	10	19.1
1905	39	17.1
1904	72	15.8
1903	74	15.7
1902	124	11.7
1901	79	15.4
1900	110	13.2
1899	19	18.4
1898	97	14.3
1897	99	14.2
1896	33	17.4
1895	53	16.5