| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 34°F | 57°F | 44°F | 5.0" |
| February | 36°F | 60°F | 47°F | 4.7" |
| March | 44°F | 69°F | 55°F | 5.5" |
| April | 51°F | 77°F | 63°F | 4.9" |
| May | 59°F | 82°F | 70°F | 4.6" |
| June | 67°F | 90°F | 77°F | 3.3" |
| July | 70°F | 91°F | 79°F | 5.0" |
| August | 70°F | 91°F | 79°F | 4.5" |
| September | 64°F | 86°F | 74°F | 2.5" |
| October | 52°F | 76°F | 63°F | 3.6" |
| November | 41°F | 66°F | 52°F | 3.7" |
| December | 38°F | 59°F | 47°F | 5.4" |
| Index | Lineville | Alabama | National |
| Air quality index | 38 | 37 | 42 |
| Pollution index | 4,837,660 | 3,012,339 | 2,726,193 |
| Measurement | Total |
| Days measured | 114 |
| Days with good air quality | 88 |
| Days with moderate air quality | 26 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.004% |
| Benzene | 0.100% |
| Carbon Tetrachloride | 0.003% |
| Lead | 0.010% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Millerville, AL | 389 | 38 | 24.0% |
| Wadley, AL | 802 | 38 | 24.0% |
| Ashland, AL | 1,680 | 38 | 24.0% |
| Munford, AL | 1,465 | 38 | 24.0% |
| Delta, AL | 118 | 38 | 24.0% |
| Lineville, AL | 2,501 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Akwesasne, QC | 2,500 | n/a | |
| Twain Harte, CA | 2,502 | 39 | 22.0% |
| Woodland Beach, MI | 2,502 | 1 | 98.0% |
| Janesville, MN | 2,502 | 36 | 28.0% |
| La Blanca, TX | 2,502 | 42 | 16.0% |
| Lineville, AL | 2,501 | 38 | 24.0% |
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