| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 64°F | 50°F | 2.9" |
| February | 42°F | 69°F | 54°F | 4.2" |
| March | 48°F | 75°F | 60°F | 3.4" |
| April | 54°F | 82°F | 68°F | 3.9" |
| May | 60°F | 87°F | 74°F | 3.0" |
| June | 69°F | 92°F | 79°F | 4.8" |
| July | 72°F | 94°F | 81°F | 4.4" |
| August | 72°F | 93°F | 81°F | 5.2" |
| September | 67°F | 89°F | 76°F | 4.5" |
| October | 55°F | 82°F | 67°F | 1.8" |
| November | 45°F | 74°F | 58°F | 1.9" |
| December | 43°F | 68°F | 54°F | 2.8" |
| Index | McRae-Helena | Georgia | National |
| Air quality index | 26 | 41 | 42 |
| Pollution index | 1,649,070 | 1,874,972 | 2,726,193 |
| Measurement | Total |
| Days measured | 121 |
| Days with good air quality | 107 |
| Days with moderate air quality | 14 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.050% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Alamo, GA | 3,345 | 26 | 48.0% |
| Chauncey, GA | 327 | 26 | 48.0% |
| Glenwood, GA | 847 | 26 | 48.0% |
| Milan, GA | 785 | 26 | 48.0% |
| Lumber City, GA | 1,425 | 26 | 48.0% |
| McRae-Helena, GA | 8,338 | 26 | 48.0% |
| City | Population | Air Quality Index | National Avg. |
| Wilmington Manor, DE | 8,335 | 51 | 2.0% |
| Dormont, PA | 8,335 | 56 | 12.0% |
| La Pêche, QC | 8,341 | n/a | |
| Bath, ME | 8,333 | 31 | 38.0% |
| South Lockport, NY | 8,344 | 39 | 22.0% |
| McRae-Helena, GA | 8,338 | 26 | 48.0% |
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