| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 40°F | 63°F | 51°F | 4.0" |
| February | 39°F | 65°F | 51°F | 3.5" |
| March | 46°F | 72°F | 58°F | 3.7" |
| April | 52°F | 79°F | 65°F | 4.2" |
| May | 61°F | 86°F | 73°F | 4.1" |
| June | 69°F | 91°F | 79°F | 5.8" |
| July | 71°F | 93°F | 81°F | 4.0" |
| August | 73°F | 92°F | 81°F | 6.4" |
| September | 68°F | 88°F | 77°F | 3.8" |
| October | 58°F | 80°F | 67°F | 4.1" |
| November | 46°F | 71°F | 57°F | 2.4" |
| December | 43°F | 66°F | 53°F | 5.1" |
| Index | Alma | Georgia | National |
| Air quality index | 26 | 41 | 50 |
| Pollution index | 380,728 | 3,237,553 | 5,066,862 |
| 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 | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Denton, GA | 209 | 26 | 48% |
| Nicholls, GA | 4,021 | 26 | 48% |
| Rockingham, GA | 334 | 26 | 48% |
| Alma, GA | 3,511 | 26 | 48% |
| City, State | Population | Air Quality Index | National Avg. |
| Oxford, MI | 3,511 | 38 | 24% |
| Maple Heights-Lake Desire, WA | 3,512 | 45 | 10% |
| Middlebury, IN | 3,512 | 37 | 26% |
| Tilton Northfield, NH | 3,512 | 31 | 38% |
| Montauk, NY | 3,510 | 37 | 26% |
| Alma, GA | 3,511 | 26 | 48% |
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