| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 60°F | 47°F | 10.0" |
| February | 38°F | 64°F | 50°F | 9.7" |
| March | 46°F | 72°F | 58°F | 7.8" |
| April | 53°F | 79°F | 66°F | 7.6" |
| May | 60°F | 86°F | 72°F | 6.2" |
| June | 69°F | 92°F | 79°F | 10.6" |
| July | 71°F | 93°F | 81°F | 11.1" |
| August | 71°F | 92°F | 80°F | 9.4" |
| September | 65°F | 87°F | 75°F | 8.5" |
| October | 53°F | 79°F | 65°F | 5.4" |
| November | 42°F | 70°F | 54°F | 6.9" |
| December | 40°F | 64°F | 51°F | 11.6" |
| Index | Tennille | Georgia | National |
| Air quality index | 38 | 41 | 42 |
| Pollution index | 335,277 | 1,874,972 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 278 |
| Days with moderate air quality | 84 |
| Days w/ poor A.Q. for sensitive groups | 3 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Oconee, GA | 275 | 38 | 24.0% |
| Sandersville, GA | 5,468 | 38 | 24.0% |
| Deepstep, GA | 158 | 38 | 24.0% |
| Wrightsville, GA | 3,638 | 38 | 24.0% |
| Harrison, GA | 440 | 47 | 6.0% |
| Tennille, GA | 1,291 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Lapwai, ID | 1,291 | 29 | 42.0% |
| Toulon, IL | 1,291 | 41 | 18.0% |
| Hillside Lake, NY | 1,291 | 36 | 28.0% |
| Dunnstown, PA | 1,291 | 35 | 30.0% |
| Redstone Arsenal, AL | 1,292 | 44 | 12.0% |
| Tennille, GA | 1,291 | 38 | 24.0% |
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