Average Rainfall for Ohio in September
The tables below give monthly averages for rainfall during September at cities, towns and parks in Ohio.
Each place has a total for the amount of precipitation it usually receives this month. Most sites also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.
The rainfall totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.
You can jump to a separate table for Northern Ohio and Southern Ohio.
Northern Ohio
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 10 | Akron | 3.5 | 88 |
| 11 | Ashtabula | 4.3 | 109 |
| 10 | Chippewa Lake | 3.4 | 86 |
| 10 | Cleveland | 3.8 | 97 |
| 9 | Findlay | 2.7 | 69 |
| 9 | Lima | 3.0 | 76 |
| 10 | Mansfield | 3.3 | 84 |
| 8 | Ottawa National Wildlife Refuge | 3.0 | 76 |
| 10 | Painesville on the Lake | 4.1 | 103 |
| 8 | Put-in-Bay | 3.0 | 75 |
| 9 | Sandusky | 3.1 | 78 |
| 10 | Steubenville | 3.6 | 92 |
| 10 | Toledo | 2.8 | 71 |
| 11 | Youngstown | 3.8 | 95 |
Southern Ohio
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 8 | Athens | 2.8 | 72 |
| 6 | Chilo Lock Park | 2.7 | 69 |
| 11 | Cincinnati | 2.8 | 72 |
| 8 | Columbus | 2.8 | 72 |
| 7 | Dayton | 2.7 | 69 |
| 9 | Gallipolis | 3.2 | 81 |
| 8 | Hannibal Lock & Dam | 3.1 | 79 |
| – | Hopewell Culture Historical Park | 2.9 | 73 |
| 10 | Marietta | 3.2 | 81 |
| 8 | McConnelsville Lock | 3.2 | 81 |
| 8 | Newark | 3.0 | 76 |
| 8 | Portsmouth | 2.7 | 68 |
| 9 | Wilmington | 2.9 | 72 |
Reference
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.