| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 41°F | 68°F | 53°F | 3.3" |
| February | 42°F | 71°F | 55°F | 3.2" |
| March | 47°F | 76°F | 61°F | 2.4" |
| April | 54°F | 82°F | 68°F | 3.2" |
| May | 61°F | 87°F | 74°F | 4.3" |
| June | 69°F | 91°F | 79°F | 7.6" |
| July | 72°F | 92°F | 81°F | 5.8" |
| August | 73°F | 92°F | 81°F | 7.1" |
| September | 69°F | 88°F | 77°F | 7.1" |
| October | 59°F | 82°F | 70°F | 4.0" |
| November | 48°F | 75°F | 61°F | 1.6" |
| December | 45°F | 72°F | 57°F | 3.0" |
| Index | Folkston | Georgia | National |
| Air quality index | 36 | 41 | 42 |
| Pollution index | 380,728 | 1,874,972 | 2,726,193 |
| Measurement | Total |
| Days measured | 279 |
| Days with good air quality | 254 |
| Days with moderate air quality | 25 |
| 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 | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Homeland, GA | 1,124 | 36 | 28.0% |
| Hilliard, FL | 3,207 | 43 | 14.0% |
| Folkston, GA | 4,853 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Big Pine Key, FL | 4,853 | 41 | 18.0% |
| Arnold, PA | 4,852 | 56 | 12.0% |
| Manheim, PA | 4,852 | 45 | 10.0% |
| Rochester, WA | 4,854 | 20 | 60.0% |
| Springhill, LA | 4,851 | 39 | 22.0% |
| Folkston, GA | 4,853 | 36 | 28.0% |
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