Average Precipitation for Ohio in May

The tables below give monthly averages for rainfall plus snowfall during May at cities, communities and other locations around Ohio.

Each place has a total for the amount of precipitation it usually receives this month. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The precipitation totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

You can jump to a separate table for Northern Ohio and Southern Ohio.

Northern Ohio

Average monthly precipitation in May
Days	Place	Inches	Millimetres
14	Akron	4.1	105
14	Ashtabula	3.3	84
14	Chardon	4.4	112
14	Chippewa Lake	4.0	103
13	Cleveland	3.8	96
14	Findlay	4.1	103
13	Fremont	3.8	97
13	Lima	4.4	111
14	Mansfield	4.2	106
13	Marion	4.2	107
15	New Philadelphia	4.2	107
13	Norwalk	3.9	99
13	Ottawa National Wildlife Refuge	4.2	106
13	Painesville on the Lake	3.4	87
14	Steubenville	4.3	109
13	Tiffin	4.1	104
13	Toledo	3.8	97
14	Wooster	4.5	115
14	Youngstown	3.7	94

Southern Ohio

May averages for total rainfall plus snowfall
Days	Place	Inches	Millimetres
14	Athens	4.2	107
12	Chilo Lock Park	4.6	117
14	Cincinnati	4.7	119
14	Columbus	4.0	101
14	Dayton	4.4	111
13	Gallipolis	4.5	114
13	Greenville	4.3	109
13	Hannibal Lock & Dam	4.5	114
14	Marietta	4.4	110
13	McConnelsville Lock	4.4	111
13	Newark	4.2	108
13	Portsmouth	4.6	117
14	Springfield	4.6	117
14	Wilmington	4.7	119
13	Zanesville	3.8	96

Average Precipitation for Ohio in May

Northern Ohio

Southern Ohio

Reference

More Ohio Weather Information