Dayton, OH: May

31 May 2026: May 2026 averaged 60°F in Dayton, OH, the coldest May since 2008, tied 35th coldest of 133 (with 2003, 1996, 1974 and 1 other year).

May 2026

Mean temperature: 60°F; Coldest since 2008; 35th coldest of 133
Precipitation: 10.31 in; Wettest on record; Wettest of 133, provisional

A normal May in Dayton, OH (1991 to 2020): a mean temperature of 62.6°F, between 58.5°F and 68°F in eight years of ten and 4.17 in of precipitation, between 2.04 in and 6.73 in in eight years of ten.

The mean temperature of every May in Dayton, OH since 1894: 60°F in 2026; the lowest is 55°F, in 1917.

Normal range, 58.5 to 68°F

Every year, ranked, as a table

Every May in Dayton, OH from 1894 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	60	95	69.7	101	50.2	92	10.31	1	0
2025	61.6	75	70.4	92	52.7	50	5.00	31	0
2024	68.3	7	77.7	18	58.9	5	3.93	61	0
2023	62.6	60	74	50	51.3	70	1.89	125	0
2022	66.4	14	76.5	25	56.3	15	5.36	27	0
2021	60.9	85	71.3	82	50.5	85	4.26	48	0
2020	60.7	87	70.5	90	50.9	78	5.78	22	0
2019	65.3	28	74.6	40	56.1	17	6.06	20	0
2018	70.5	2	81.4	2	59.6	2	3.06	83	0
2017	61.6	75	71.5	77	51.6	63	6.50	16	0
2016	61.1	80	71.1	85	51.1	74	2.95	86	0
2015	68	11	78.1	16	57.9	7	1.79	126	0
2014	64.4	38	74.5	41	54.3	31	4.68	36	0
2013	65.1	33	74.5	41	55.7	20	2.99	84	0
2012	68.3	7	79	9	57.5	8	2.04	118	0
2011	62.5	64	71	86	53.9	36	6.06	20	0
2010	64.3	41	73.9	52	54.7	25	5.30	28	0
2009	62.6	60	73.4	57	51.8	60	3.79	64	0
2008	58.4	117	68.6	110	48.1	115	4.38	43	0
2007	65.6	23	77.7	18	53.5	44	2.93	87	0
2006	59.7	101	69.4	104	50	95	3.67	65	0
2005	57.3	123	68.1	120	46.5	126	2.31	107	0
2004	65.6	23	74.9	39	56.3	15	8.61	4	0
2003	60	95	68.3	113	51.6	63	6.62	14	0
2002	58.5	115	68.8	109	48.3	114	6.20	19	0
2001	63.5	51	73.2	60	53.7	40	4.53	39	0
2000	64.6	37	74.2	45	55	22	2.98	85	0
1999	63.6	49	75.2	36	52.1	58	1.98	123	0
1998	66	17	75.9	31	56	19	4.09	56	0
1997	55.7	132	65.5	131	46	131	5.76	23	0
1996	60	95	68.5	112	51.5	66	7.75	9	0
1995	60.3	93	70.3	95	50.4	90	9.05	2	0
1994	58.6	114	70	98	47.2	119	2.00	121	0
1993	62	71	73	63	51	76	3.98	59	0
1992	60.4	91	71.4	79	49.5	103	3.17	78	0
1991	69.3	5	79	9	59.6	2	4.25	50	0
1990	58.5	115	66.5	128	50.5	85	8.40	6	0
1989	58.7	109	68.2	116	49.3	105	8.55	5	0
1988	63.4	52	76.7	24	50.2	92	1.62	128	0
1987	66.4	14	79	9	53.7	40	2.61	97	0
1986	63.8	47	73.6	55	54	34	2.29	109	0
1985	62.7	59	73.2	60	52.3	55	4.43	40	0
1984	57.2	125	66.7	127	47.6	116	4.29	47	0
1983	56.7	129	66.4	129	47	122	4.43	40	0
1982	67.9	12	79.4	7	56.4	13	4.80	33	0
1981	57.3	123	67.3	125	47.3	118	4.76	34	0
1980	62.3	68	73.7	53	50.8	81	5.06	30	0
1979	61.5	77	72.7	67	50.2	92	2.90	88	0
1978	60.3	93	70.1	97	50.6	84	2.85	90	0
1977	68.8	6	81.2	5	56.4	13	2.02	119	0
1976	59.1	104	70.9	88	47.2	119	1.90	124	0
1975	65.9	18	77.5	20	54.2	32	2.28	110	0
1974	60	95	70.5	90	49.6	101	5.20	29	0
1973	58.7	109	68.3	113	49.1	110	3.10	82	0
1972	62	71	72.6	68	51.3	70	4.34	45	0
1971	59.5	103	69.7	101	49.2	109	4.20	52	0
1970	65.1	33	76	29	54.2	32	2.68	95	0
1969	62.4	67	73	63	51.7	62	4.20	52	0
1968	58.2	119	67.9	121	48.6	113	7.33	11	0
1967	56.5	130	65.9	130	47	122	6.72	13	0
1966	57.8	121	69.4	104	46.1	130	2.37	104	0
1965	69.4	4	81.4	2	57.4	10	2.33	105	0
1964	65.4	27	76.8	23	53.9	36	1.55	129	0
1963	58.9	107	70.2	96	47.6	116	2.45	101	0
1962	68.1	10	78.7	12	57.5	8	3.94	60	0
1961	56.8	127	67.4	124	46.2	128	2.81	91	0
1960	59	105	68.2	116	49.7	100	3.66	66	0
1959	65.9	18	75.7	32	56.1	17	4.40	42	0
1958	61	82	71.4	79	50.5	85	4.26	48	0
1957	61.7	73	72.2	73	51.2	73	7.76	8	0
1956	61.2	79	71	86	51.4	68	4.02	58	0
1955	64.2	43	74.5	41	53.9	36	2.22	113	0
1954	57.1	126	67.2	126	47	122	2.32	106	0
1953	64.3	41	74.1	46	54.5	29	5.52	25	0
1952	60.7	87	70	98	51.5	66	3.16	80	0
1951	63.1	54	74.1	46	52.2	57	3.28	76	0
1950	62.6	60	72.8	66	52.5	52	2.88	89	0
1949	62.6	60	74	50	51.3	70	2.22	113	0
1948	59.9	100	70.4	92	49.3	105	2.41	102	0
1947	61	82	71.2	83	50.8	81	6.86	12	0
1946	60.5	89	69.9	100	51.1	74	4.21	51	0
1945	58.9	107	69.2	108	48.7	112	3.53	70	0
1944	70.2	3	81	6	59.4	4	3.13	81	0
1943	63.9	45	73.2	60	54.7	25	4.87	32	0
1942	63.8	47	72.6	68	55	22	2.31	107	0
1941	65.3	28	76.5	25	54	34	2.77	93	0
1940	58.7	109	67.5	123	49.9	96	6.44	17	0
1939	65.5	25	76	29	55	22	2.56	98	0
1938	62.5	64	72.5	71	52.5	52	9.01	3	0
1937	62.2	70	71.4	79	53	48	3.66	66	0
1936	65.7	21	76.9	22	54.5	29	1.04	131	0
1935	58.7	109	67.8	122	49.6	101	5.74	24	0
1934	65.7	21	78.3	15	53.3	47	0.90	133	2
1933	65.1	33	73.5	56	56.7	12	7.96	7	0
1932	63.1	54	74.1	46	52.1	58	2.47	100	0
1931	59.6	102	69.4	104	49.8	99	2.11	116	0
1930	64.7	36	74.3	44	55.1	21	2.64	96	0
1929	60	95	69.3	107	50.8	81	7.41	10	0
1928	61	82	71.8	76	50.3	91	1.48	130	0
1927	61.5	77	70.4	92	52.6	51	3.81	62	0
1926	62.8	57	75.1	38	50.5	85	2.15	115	0
1925	58	120	69.5	103	46.4	127	2.10	117	0
1924	56.1	131	65.2	132	47.1	121	3.63	69	0
1923	60.5	89	72	75	48.9	111	2.56	98	0
1922	66.4	14	75.7	32	57	11	4.16	55	0
1921	64	44	73.4	57	54.6	27	2.26	112	0
1920	60.8	86	70.6	89	50.9	78	2.71	94	0
1919	59	105	68.2	116	49.9	96	4.33	46	0
1918	68.2	9	78	17	58.4	6	4.35	44	0
1917	55	133	63.9	133	46.2	128	3.81	62	0
1916	62.9	56	72.2	73	53.5	44	3.21	77	0
1915	58.7	109	68.2	116	49.3	105	4.76	34	0
1914	64.4	38	75.2	36	53.6	42	0.94	132	0
1913	62.8	57	72.6	68	52.9	49	3.41	74	0
1912	64.4	38	74.1	46	54.6	27	2.27	111	0
1911	67.5	13	81.4	2	53.8	39	2.01	120	1
1910	57.6	122	68.3	113	47	122	4.59	38	0
1909	61.1	80	72.4	72	49.5	103	6.25	18	3
1908	65.2	31	75.7	32	53.6	42	5.40	26	2
1907	56.8	127	68.6	110	44.9	133	3.17	78	3
1906	63.2	53	76.5	25	49.9	96	2.00	121	0
1905	62.3	68	73.7	53	50.9	78	6.53	15	0
1904	61.7	73	73	63	50.5	85	4.05	57	1
1903	65.9	18	78.7	12	52.5	52	4.66	37	1
1902	65.5	25	78.6	14	52.3	55	2.39	103	0
1901	60.4	91	71.5	77	49.3	105	3.45	73	0
1900	65.2	31	79.4	7	51	76	2.79	92	0
1899	65.3	28	77.3	21	53.4	46	3.64	68	0
1898	63.9	45	76.5	25	51.4	68	3.49	72	0
1897	58.4	117	71.2	83	45.5	132	3.51	71	0
1896	71.3	1	82.5	1	60.1	1	3.34	75	0
1895	63.6	49	75.4	35	51.8	60	1.78	127	0
1894	62.5	64	73.4	57	51.6	63	4.17	54	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1896	71.3
2018	70.5
1944	70.2
1965	69.4
1991	69.3
1977	68.8
2024	68.3
2012	68.3
1918	68.2
1962	68.1

Coldest
Year	Mean, °F
1917	55
1997	55.7
1924	56.1
1967	56.5
1983	56.7
1961	56.8
1907	56.8
1954	57.1
1984	57.2
2005	57.3
More years share the last value

Wettest
Year	Precipitation, in
2026	10.31
1995	9.05
1938	9.01
2004	8.61
1989	8.55
1990	8.40
1933	7.96
1957	7.76
1996	7.75
1929	7.41

Driest
Year	Precipitation, in
1934	0.90
1914	0.94
1936	1.04
1928	1.48
1964	1.55
1988	1.62
1895	1.78
2015	1.79
2023	1.89
1976	1.90

The hottest, coldest and wettest days

Hottest day: 86°F; 19 May 2026, 18 May 2026
Coldest night: 34°F; 3 May 2026, 2 May 2026
Wettest day: 2.65 in; 23 May 2026

Every month, season and year

Months

Seasons

Years

Dayton, OH the day's answers

All-time records

Every answer in words

May 2026 brought 10.31 in of precipitation in Dayton, OH, the wettest May on record, in 133 years since 1894; provisional.
The hottest day of May 2026 in Dayton, OH: 86°F on Tuesday 19 May 2026 and Monday 18 May 2026.
The coldest night of May 2026 in Dayton, OH: a low of 34°F on Sunday 3 May 2026 and Saturday 2 May 2026.
The wettest day of May 2026 in Dayton, OH: 2.65 in on Saturday 23 May 2026.