Dayton OH Most Precipitation in a Day for Each Year

This page lists the biggest rainstorms or snowstorms of the year in Dayton, Ohio along with the date they occurred. The information answers questions like: When was the last time more than three inches of precipitation landed on Dayton in a single day? What was the rainiest day of 2019?

The list gives the highest daily precipitation for each year in Dayton and the date that it happened. A date with a plus sign beside it means the same amount of moisture also fell on at least one other day earlier that year.

These records go back to 1934. During that time the most precipitation - measured as rain or melted snow - to arrive in one day was 4.16 inches (105.7 millimetres) on January 21, 1959.

Since 1948 the precipitation extremes were observed at Dayton International Airport. Before then, the weather station was in downtown Dayton.

Most precipitation in one day for recent years in Dayton
Inches	Date	Millimetres
2.70	March 03, 2023	68.6
2.64	July 17, 2022	67.1
1.71	September 22, 2021	43.4
1.75	May 18, 2020	44.5
1.91	February 07, 2019	48.5
2.88	April 03, 2018	73.2
3.57	November 05, 2017	90.7
1.63	February 24, 2016	41.4
1.96	October 28, 2015	49.8
1.75	May 21, 2014	44.5
2.46	December 21, 2013	62.5
1.86	September 21, 2012	47.2
3.10	September 26, 2011	78.7
1.62	July 12, 2010	41.1

Highest daily precipitation recorded at Dayton each year
Inches	Date	Millimetres
1.51	July 22, 2009	38.4
2.13	June 04, 2008	54.1
2.12	September 09, 2007	53.8
2.19	September 12, 2006	55.6
3.81	September 16, 2005	96.8
2.69	August 20, 2004	68.3
1.78	September 01, 2003	45.2
3.73	September 27, 2002	94.7
2.25	September 09, 2001	57.2
2.50	October 05, 2000	63.5
1.36	February 27, 1999	34.5
2.09	June 11, 1998	53.1
1.75	May 31, 1997	44.5
2.53	April 29, 1996	64.3
3.54	October 05, 1995	89.9
1.85	August 28, 1994 +	47.0
2.19	September 25, 1993	55.6
2.16	August 26, 1992	54.9
2.30	September 03, 1991	58.4
2.85	December 30, 1990	72.4
3.17	May 23, 1989	80.5
1.81	November 10, 1988	46.0
2.40	July 01, 1987	61.0
3.24	October 01, 1986	82.3
2.05	November 10, 1985	52.1
1.75	May 20, 1984	44.5
2.10	June 17, 1983	53.3
2.25	August 07, 1982	57.2
3.76	June 05, 1981	95.5
2.94	June 28, 1980	74.7
1.94	November 25, 1979	49.3
2.13	August 03, 1978	54.1
3.10	April 02, 1977	78.7
1.07	June 29, 1976	27.2
2.04	February 23, 1975	51.8
2.37	August 27, 1974	60.2
1.25	November 25, 1973	31.8
1.67	June 13, 1972	42.4
1.52	July 24, 1971	38.6
1.55	April 24, 1970	39.4
2.98	August 09, 1969	75.7
2.82	May 23, 1968	71.6
2.51	June 28, 1967	63.8
1.29	February 10, 1966	32.8
1.60	September 15, 1965	40.6
2.87	March 04, 1964	72.9
2.61	March 04, 1963	66.3
1.24	May 27, 1962	31.5
2.07	September 01, 1961	52.6
2.49	July 13, 1960	63.2
4.16	January 21, 1959	105.7
3.25	June 13, 1958	82.6
1.75	April 03, 1957	44.5
1.65	July 28, 1956	41.9
3.16	July 09, 1955	80.3
1.08	October 14, 1954	27.4
2.19	August 01, 1953	55.6
3.38	January 26, 1952	85.9
2.58	February 20, 1951	65.5
2.26	September 21, 1950	57.4
2.36	January 04, 1949	59.9
2.18	November 05, 1948	55.4
2.58	June 01, 1947	65.5
1.65	June 27, 1946	41.9
2.36	March 05, 1945	59.9
1.52	August 12, 1944	38.6
2.67	March 19, 1943	67.8
1.80	June 21, 1942	45.7
2.41	December 23, 1941	61.2
1.86	April 19, 1940	47.2
1.75	July 17, 1939	44.5
2.30	November 17, 1938	58.4
2.81	August 07, 1937	71.4
2.04	August 28, 1936	51.8
1.85	May 01, 1935	47.0
1.69	September 28, 1934 +	42.9

Dayton - Extreme Daily Precipitation for Each Year

Reference

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