| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 26°F | 40°F | 33°F | 7.1" |
| February | 20°F | 36°F | 28°F | 3.7" |
| March | 34°F | 53°F | 42°F | 5.4" |
| April | 41°F | 64°F | 52°F | 5.8" |
| May | 50°F | 75°F | 63°F | 4.5" |
| June | 62°F | 84°F | 73°F | 4.7" |
| July | 64°F | 84°F | 74°F | 5.1" |
| August | 66°F | 88°F | 77°F | 5.8" |
| September | 58°F | 81°F | 69°F | 7.4" |
| October | 49°F | 67°F | 58°F | 6.6" |
| November | 34°F | 55°F | 44°F | 9.5" |
| December | 25°F | 39°F | 31°F | 4.6" |
| Index | South Lebanon | Ohio | National |
| Air quality index | 54 | 40 | 42 |
| Pollution index | 7,300,490 | 4,472,386 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 139 |
| Days with moderate air quality | 206 |
| Days w/ poor A.Q. for sensitive groups | 20 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.520% |
| Benzene | 0.070% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.240% |
| Mercury | 0.050% |
| City | Population | Air Quality Index | National Avg. |
| Harveysburg, OH | 725 | 43 | 14.0% |
| Blanchester, OH | 4,401 | 43 | 14.0% |
| Morrow, OH | 1,999 | 43 | 14.0% |
| Pleasant Plain, OH | 197 | 43 | 14.0% |
| Corwin, OH | 434 | 43 | 14.0% |
| South Lebanon, OH | 5,885 | 54 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Attalla, AL | 5,885 | 43 | 14.0% |
| Villa Park, CA | 5,883 | 89 | 78.0% |
| Wilmington, IL | 5,883 | 0 | 100.0% |
| Riverside, MD | 5,888 | 46 | 8.0% |
| Morris Plains, NJ | 5,888 | 51 | 2.0% |
| South Lebanon, OH | 5,885 | 54 | 8.0% |
Here are the best places to live in Ohio
These are the 10 cheapest cities in Ohio
Most Dangerous Cities In The US
Check out the 10 most dangerous cities in Ohio