| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 26°F | 46°F | 36°F | 3.5" |
| February | 28°F | 48°F | 37°F | 3.1" |
| March | 38°F | 61°F | 49°F | 4.6" |
| April | 48°F | 73°F | 60°F | 6.3" |
| May | 57°F | 80°F | 68°F | 5.3" |
| June | 66°F | 88°F | 77°F | 4.5" |
| July | 69°F | 90°F | 79°F | 4.7" |
| August | 68°F | 90°F | 79°F | 4.2" |
| September | 61°F | 84°F | 72°F | 4.4" |
| October | 49°F | 73°F | 60°F | 4.4" |
| November | 37°F | 61°F | 48°F | 3.4" |
| December | 31°F | 49°F | 39°F | 5.1" |
| Index | Livonia | Indiana | National |
| Air quality index | 35 | 56 | 42 |
| Pollution index | 621,794 | 2,719,453 | 2,726,193 |
| Measurement | Total |
| Days measured | 360 |
| Days with good air quality | 340 |
| Days with moderate air quality | 20 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.002% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Marengo, IN | 680 | 6 | 88.0% |
| Hardinsburg, IN | 147 | 6 | 88.0% |
| English, IN | 981 | 6 | 88.0% |
| Orleans, IN | 2,273 | 6 | 88.0% |
| Paoli, IN | 3,743 | 6 | 88.0% |
| Livonia, IN | 78 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Lowndesboro, AL | 78 | 52 | 4.0% |
| Franklin, AZ | 78 | 37 | 26.0% |
| Gold Mountain, CA | 78 | 44 | 12.0% |
| Branson, CO | 78 | 20 | 60.0% |
| Dickerson City, FL | 78 | 41 | 18.0% |
| Livonia, IN | 78 | 35 | 30.0% |