| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 21°F | 38°F | 29°F | 4.7" |
| February | 22°F | 40°F | 30°F | 4.9" |
| March | 33°F | 54°F | 42°F | 6.6" |
| April | 42°F | 67°F | 54°F | 6.8" |
| May | 52°F | 75°F | 64°F | 6.8" |
| June | 61°F | 83°F | 72°F | 7.3" |
| July | 64°F | 85°F | 75°F | 8.6" |
| August | 63°F | 85°F | 74°F | 6.8" |
| September | 56°F | 79°F | 66°F | 6.6" |
| October | 44°F | 67°F | 55°F | 6.5" |
| November | 33°F | 55°F | 43°F | 6.1" |
| December | 27°F | 43°F | 34°F | 6.1" |
| Index | Mcpherson | Dayton | Ohio |
| Air quality index | 47 | 47 | 40 |
| Pollution index | 11,539,300 | 11,539,300 | 4,472,386 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 213 |
| Days with moderate air quality | 152 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.210% |
| Benzene | 0.110% |
| Carbon Tetrachloride | 0.060% |
| Lead | 0.110% |
| Mercury | 0.050% |
| City | Population | Air Quality Index | National Avg. |
| Spring Valley, OH | 855 | 43 | 14.0% |
| New Burlington, OH | 4,526 | 43 | 14.0% |
| Donnelsville, OH | 329 | 45 | 10.0% |
| New Carlisle, OH | 5,577 | 45 | 10.0% |
| Holiday Valley, OH | 1,573 | 45 | 10.0% |
| Dayton, OH | 140,444 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Miramar, FL | 140,479 | 41 | 18.0% |
| Cambridge, ON | 140,221 | n/a | |
| St. Catharines, ON | 140,913 | n/a | |
| Fullerton, CA | 141,061 | 72 | 44.0% |
| Denton, TX | 139,734 | 51 | 2.0% |
| Dayton, OH | 140,444 | 47 | 6.0% |
Here are the best places to live in Ohio
These are the largest cities in Ohio
See the best places to live in Dayton
Check out the 10 safest cities in Ohio