| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 44°F | 63°F | 52°F | 5.3" |
| February | 43°F | 63°F | 52°F | 3.3" |
| March | 49°F | 71°F | 59°F | 13.2" |
| April | 53°F | 77°F | 64°F | 4.8" |
| May | 63°F | 82°F | 72°F | 7.1" |
| June | 71°F | 87°F | 78°F | 13.1" |
| July | 74°F | 91°F | 82°F | 9.4" |
| August | 75°F | 92°F | 82°F | 6.5" |
| September | 71°F | 88°F | 78°F | 16.2" |
| October | 63°F | 79°F | 70°F | 12.0" |
| November | 50°F | 72°F | 59°F | 8.1" |
| December | 44°F | 65°F | 53°F | 10.6" |
| Index | Montgomery | Georgia | National |
| Air quality index | 39 | 41 | 42 |
| Pollution index | 367,918 | 1,874,972 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 295 |
| Days with moderate air quality | 70 |
| 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 | 0.005% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Bloomingdale, GA | 2,801 | 39 | 22.0% |
| Henderson, GA | 2,694 | 39 | 22.0% |
| Richmond Hill, GA | 13,250 | 39 | 22.0% |
| Thunderbolt, GA | 2,638 | 39 | 22.0% |
| Tybee Island, GA | 3,094 | 39 | 22.0% |
| Montgomery, GA | 5,323 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Red Oak, IA | 5,323 | 40 | 20.0% |
| Churchville, PA | 5,323 | 41 | 18.0% |
| Iola, KS | 5,322 | 22 | 56.0% |
| Jeanerette, LA | 5,321 | 41 | 18.0% |
| Strawberry, CA | 5,325 | 40 | 20.0% |
| Montgomery, GA | 5,323 | 39 | 22.0% |
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