Oklahoma May Precipitation by Year

This page is a list of the average statewide precipitation in the month of May in Oklahoma 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 May in Oklahoma History?

2015 was the wettest May in Oklahoma history with an average monthly statewide precipitation of 14.44 inches.

What Was the Driest May in Oklahoma History?

1988 was the driest May in Oklahoma history with an average monthly statewide precipitation of 1.23 inches.

Click column headers to sort

Year	Rank	Precipitation (in)
2023	77	4.15
2022	30	6.30
2021	40	5.61
2020	52	5.07
2019	2	11.61
2018	84	3.92
2017	69	4.49
2016	85	3.86
2015	1	14.44
2014	100	3.14
2013	64	4.73
2012	124	2.15
2011	70	4.47
2010	59	4.80
2009	56	4.98
2008	60	4.80
2007	17	7.05
2006	99	3.16
2005	110	2.60
2004	128	1.56
2003	87	3.71
2002	92	3.56
2001	15	7.38
2000	74	4.34
1999	44	5.45
1998	112	2.52
1997	88	3.70
1996	115	2.42
1995	19	6.99
1994	82	3.98
1993	14	7.42
1992	67	4.53
1991	51	5.10
1990	26	6.58
1989	36	5.80
1988	129	1.23
1987	8	7.92
1986	41	5.54
1985	111	2.60
1984	102	3.09
1983	33	5.93
1982	4	10.38
1981	45	5.40
1980	29	6.49
1979	37	5.74
1978	20	6.98
1977	25	6.67
1976	71	4.39
1975	22	6.77
1974	86	3.82
1973	94	3.50
1972	97	3.25
1971	103	2.95
1970	122	2.18
1969	50	5.21
1968	27	6.58
1967	66	4.58
1966	127	1.60
1965	72	4.37
1964	54	5.01
1963	119	2.36
1962	126	1.89
1961	57	4.97
1960	34	5.84
1959	39	5.72
1958	95	3.41
1957	3	10.54
1956	78	4.09
1955	11	7.59
1954	31	6.15
1953	105	2.84
1952	90	3.62
1951	48	5.29
1950	23	6.75
1949	10	7.60
1948	65	4.71
1947	24	6.71
1946	35	5.81
1945	117	2.40
1944	73	4.37
1943	5	9.66
1942	121	2.31
1941	61	4.76
1940	83	3.97
1939	91	3.58
1938	38	5.73
1937	96	3.33
1936	63	4.74
1935	9	7.82
1934	108	2.63
1933	58	4.95
1932	123	2.17
1931	104	2.94
1930	28	6.51
1929	13	7.50
1928	81	4.06
1927	109	2.63
1926	101	3.14
1925	118	2.38
1924	113	2.51
1923	21	6.89
1922	42	5.50
1921	125	2.03
1920	43	5.46
1919	68	4.52
1918	80	4.07
1917	116	2.42
1916	120	2.36
1915	32	6.01
1914	47	5.34
1913	89	3.63
1912	106	2.75
1911	114	2.44
1910	79	4.09
1909	49	5.24
1908	7	8.09
1907	53	5.04
1906	93	3.51
1905	16	7.35
1904	55	4.99
1903	18	7.04
1902	6	9.14
1901	62	4.76
1900	76	4.25
1899	46	5.40
1898	12	7.54
1897	75	4.31
1896	98	3.23
1895	107	2.64