| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 61°F | 48°F | 5.3" |
| February | 39°F | 64°F | 50°F | 4.9" |
| March | 46°F | 72°F | 58°F | 4.8" |
| April | 52°F | 79°F | 65°F | 5.1" |
| May | 59°F | 85°F | 72°F | 3.9" |
| June | 68°F | 91°F | 78°F | 4.3" |
| July | 70°F | 92°F | 80°F | 5.6" |
| August | 71°F | 92°F | 80°F | 5.3" |
| September | 65°F | 88°F | 75°F | 3.3" |
| October | 53°F | 79°F | 65°F | 2.7" |
| November | 43°F | 70°F | 55°F | 3.6" |
| December | 40°F | 63°F | 51°F | 6.3" |
| Index | Louisville | Alabama | National |
| Air quality index | 35 | 37 | 42 |
| Pollution index | 1,878,090 | 3,012,339 | 2,726,193 |
| Measurement | Total |
| Days measured | 280 |
| Days with good air quality | 256 |
| Days with moderate air quality | 24 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.050% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Blue Springs, AL | 84 | 35 | 30.0% |
| Clayton, AL | 2,853 | 35 | 30.0% |
| Ariton, AL | 731 | 35 | 30.0% |
| Clio, AL | 1,037 | 35 | 30.0% |
| Louisville, AL | 618 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| McDowell, KY | 618 | 45 | 10.0% |
| Barnum, MN | 618 | 35 | 30.0% |
| Green Acres, ND | 618 | 36 | 28.0% |
| Cañada de los Alamos, NM | 618 | 44 | 12.0% |
| Tryon, OK | 618 | 36 | 28.0% |
| Louisville, AL | 618 | 35 | 30.0% |
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