| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 61°F | 48°F | 4.3" |
| February | 39°F | 65°F | 51°F | 4.8" |
| March | 47°F | 74°F | 59°F | 3.0" |
| April | 53°F | 80°F | 66°F | 5.1" |
| May | 61°F | 87°F | 73°F | 2.8" |
| June | 69°F | 93°F | 80°F | 3.6" |
| July | 71°F | 94°F | 81°F | 4.1" |
| August | 72°F | 94°F | 81°F | 4.0" |
| September | 66°F | 89°F | 76°F | 2.8" |
| October | 54°F | 81°F | 66°F | 2.3" |
| November | 43°F | 71°F | 56°F | 3.1" |
| December | 41°F | 65°F | 52°F | 6.7" |
| Index | Bluffton | Georgia | National |
| Air quality index | 35 | 41 | 42 |
| Pollution index | 2,735,660 | 1,874,972 | 2,726,193 |
| Measurement | Total |
| Days measured | 280 |
| Days with good air quality | 256 |
| Days with moderate air quality | 24 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.010% |
| Mercury | 0.040% |
| City | Population | Air Quality Index | National Avg. |
| Fort Gaines, GA | 857 | 35 | 30.0% |
| Blakely, GA | 4,745 | 35 | 30.0% |
| Arlington, GA | 1,192 | 40 | 20.0% |
| Edison, GA | 1,377 | 40 | 20.0% |
| Coleman, GA | 40 | 40 | 20.0% |
| Bluffton, GA | 230 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Mashantucket, CT | 230 | 37 | 26.0% |
| Climax, GA | 230 | 40 | 20.0% |
| Blanchard, ID | 230 | 43 | 14.0% |
| Bryant, IL | 230 | 41 | 18.0% |
| Ambia, IN | 230 | 42 | 16.0% |
| Bluffton, GA | 230 | 35 | 30.0% |