| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 32°F | 58°F | 44°F | 6.9" |
| February | 34°F | 59°F | 44°F | 6.9" |
| March | 42°F | 70°F | 54°F | 10.5" |
| April | 45°F | 74°F | 58°F | 3.7" |
| May | 54°F | 83°F | 68°F | 2.8" |
| June | 65°F | 90°F | 76°F | 5.4" |
| July | 69°F | 89°F | 77°F | 19.2" |
| August | 71°F | 94°F | 80°F | 5.4" |
| September | 64°F | 89°F | 74°F | 9.9" |
| October | 51°F | 77°F | 62°F | 0.9" |
| November | 40°F | 68°F | 52°F | 6.1" |
| December | 33°F | 56°F | 43°F | 5.6" |
| Index | Piedmont | Alabama | National |
| Air quality index | 43 | 37 | 42 |
| Pollution index | 5,453,470 | 3,012,339 | 2,726,193 |
| Measurement | Total |
| Days measured | 279 |
| Days with good air quality | 232 |
| Days with moderate air quality | 47 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.004% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.280% |
| Mercury | 0.002% |
| City | Population | Air Quality Index | National Avg. |
| Fruithurst, AL | 446 | 43 | 14.0% |
| White Plains, AL | 555 | 43 | 14.0% |
| Nances Creek, AL | 390 | 43 | 14.0% |
| Jacksonville, AL | 13,194 | 43 | 14.0% |
| Ballplay, AL | 1,581 | 43 | 14.0% |
| Piedmont, AL | 4,654 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Holtville, AL | 4,653 | 52 | 4.0% |
| Gibraltar, MI | 4,653 | 1 | 98.0% |
| Coopertown, TN | 4,655 | 45 | 10.0% |
| Luverne, MN | 4,651 | 36 | 28.0% |
| Bremen, IN | 4,650 | 42 | 16.0% |
| Piedmont, AL | 4,654 | 43 | 14.0% |