| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 31°F | 56°F | 42°F | 4.9" |
| February | 32°F | 59°F | 44°F | 4.0" |
| March | 40°F | 68°F | 53°F | 5.2" |
| April | 47°F | 78°F | 62°F | 5.1" |
| May | 55°F | 84°F | 69°F | 4.2" |
| June | 65°F | 91°F | 77°F | 3.3" |
| July | 68°F | 92°F | 79°F | 3.6" |
| August | 68°F | 92°F | 79°F | 3.8" |
| September | 61°F | 87°F | 73°F | 3.5" |
| October | 48°F | 77°F | 61°F | 4.0" |
| November | 37°F | 66°F | 50°F | 3.8" |
| December | 34°F | 58°F | 45°F | 6.5" |
| Index | Lyerly | Georgia | National |
| Air quality index | 40 | 41 | 50 |
| Pollution index | 2,295,500 | 3,237,553 | 5,066,862 |
| Measurement | Total |
| Days measured | 244 |
| Days with good air quality | 231 |
| Days with moderate air quality | 13 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.002% |
| City, State | Population | Air Quality Index | National Avg. |
| Hammondville, AL | 603 | 39 | 22% |
| Lookout Mountain, AL | 1,513 | 39 | 22% |
| Broomtown, AL | 122 | 39 | 22% |
| Cedar Bluff, AL | 1,994 | 39 | 22% |
| Mentone, AL | 383 | 39 | 22% |
| Lyerly, GA | 443 | 40 | 20% |
| City, State | Population | Air Quality Index | National Avg. |
| Verona, OH | 443 | 47 | 6% |
| Brethren, MI | 443 | 36 | 28% |
| Keyesport, IL | 443 | 43 | 14% |
| Nanticoke, MD | 443 | 41 | 18% |
| Earling, IA | 443 | 40 | 20% |
| Lyerly, GA | 443 | 40 | 20% |
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