| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 38°F | 62°F | 48°F | 9.0" |
| February | 38°F | 63°F | 49°F | 5.3" |
| March | 43°F | 72°F | 56°F | 14.8" |
| April | 47°F | 75°F | 60°F | 13.9" |
| May | 56°F | 85°F | 70°F | 2.7" |
| June | 67°F | 90°F | 77°F | 8.1" |
| July | 71°F | 91°F | 79°F | 8.2" |
| August | 72°F | 94°F | 81°F | 4.8" |
| September | 65°F | 89°F | 76°F | 7.3" |
| October | 55°F | 79°F | 65°F | 5.6" |
| November | 42°F | 70°F | 54°F | 7.5" |
| December | 37°F | 62°F | 48°F | 7.1" |
| Index | Ellaville | Georgia | National |
| Air quality index | 39 | 41 | 42 |
| Pollution index | 179,127 | 1,874,972 | 2,726,193 |
| Measurement | Total |
| Days measured | 238 |
| Days with good air quality | 211 |
| Days with moderate air quality | 27 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Ideal, GA | 495 | 39 | 22.0% |
| Oglethorpe, GA | 1,274 | 39 | 22.0% |
| Plains, GA | 758 | 39 | 22.0% |
| Americus, GA | 15,319 | 39 | 22.0% |
| Buena Vista, GA | 2,214 | 39 | 22.0% |
| Ellaville, GA | 1,880 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Roanoke, IL | 1,880 | 41 | 18.0% |
| Livingston, LA | 1,880 | 30 | 40.0% |
| Hanson, MA | 1,880 | 43 | 14.0% |
| Eagleview, PA | 1,880 | 42 | 16.0% |
| Buffalo, TX | 1,880 | 41 | 18.0% |
| Ellaville, GA | 1,880 | 39 | 22.0% |
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