Average Annual Precipitation for Ohio
The tables below give yearly averages for rainfall plus snowfall at cities, communities and other locations around Ohio.
Each place has a total for the amount of precipitation it usually receives in a year.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 annual 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
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 160 | Akron | 41.6 | 1056 |
| 163 | Ashtabula | 37.1 | 942 |
| 170 | Chardon | 50.7 | 1288 |
| 152 | Chippewa Lake | 40.6 | 1030 |
| 159 | Cleveland | 41.0 | 1042 |
| 133 | Findlay | 37.7 | 957 |
| 129 | Fremont | 38.2 | 970 |
| 134 | Lima | 41.2 | 1045 |
| 153 | Mansfield | 42.5 | 1079 |
| 131 | Marion | 39.4 | 1002 |
| 145 | New Philadelphia | 42.1 | 1070 |
| 138 | Norwalk | 40.1 | 1018 |
| 120 | Ottawa National Wildlife Refuge | 38.0 | 964 |
| 147 | Painesville on the Lake | 40.5 | 1028 |
| 152 | Steubenville | 43.2 | 1096 |
| 130 | Tiffin | 38.7 | 983 |
| 133 | Toledo | 35.0 | 889 |
| 142 | Wooster | 42.0 | 1066 |
| 168 | Youngstown | 41.2 | 1046 |
Southern Ohio
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 138 | Athens | 41.6 | 1056 |
| 112 | Chilo Lock Park | 42.2 | 1071 |
| 136 | Cincinnati | 45.3 | 1150 |
| 141 | Columbus | 41.6 | 1056 |
| 128 | Dayton | 41.7 | 1058 |
| 131 | Gallipolis | 44.5 | 1131 |
| 125 | Greenville | 40.3 | 1023 |
| 139 | Hannibal Lock & Dam | 45.0 | 1144 |
| 152 | Marietta | 45.3 | 1150 |
| 138 | McConnelsville Lock | 45.0 | 1142 |
| 133 | Newark | 43.4 | 1102 |
| 131 | Portsmouth | 43.1 | 1094 |
| 131 | Springfield | 40.3 | 1022 |
| 143 | Wilmington | 43.2 | 1098 |
| 138 | Zanesville | 38.6 | 980 |
Reference
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.