| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 54°F | 45°F | 8.1" |
| February | 35°F | 55°F | 44°F | 5.4" |
| March | 44°F | 67°F | 55°F | 5.9" |
| April | 49°F | 72°F | 59°F | 7.1" |
| May | 56°F | 82°F | 69°F | 2.9" |
| June | 66°F | 89°F | 77°F | 4.9" |
| July | 70°F | 89°F | 78°F | 7.2" |
| August | 72°F | 94°F | 82°F | 5.2" |
| September | 63°F | 88°F | 75°F | 7.8" |
| October | 51°F | 76°F | 63°F | 3.6" |
| November | 41°F | 65°F | 52°F | 8.0" |
| December | 35°F | 55°F | 44°F | 5.0" |
| Index | Hillsboro | Alabama | National |
| Air quality index | 41 | 37 | 42 |
| Pollution index | 6,960,530 | 3,012,339 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 306 |
| Days with moderate air quality | 59 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.100% |
| Carbon Tetrachloride | 0.060% |
| Lead | 0.030% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Rogersville, AL | 1,464 | 37 | 26.0% |
| Hatton, AL | 59 | 37 | 26.0% |
| Town Creek, AL | 943 | 37 | 26.0% |
| Courtland, AL | 896 | 41 | 18.0% |
| Athens, AL | 26,686 | 41 | 18.0% |
| Hillsboro, AL | 590 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| El Prado Estates, AZ | 590 | 45 | 10.0% |
| Bodega, CA | 590 | 34 | 32.0% |
| Avalon, FL | 590 | 41 | 18.0% |
| Emlyn, KY | 590 | 39 | 22.0% |
| Minnetonka Beach, MN | 590 | 46 | 8.0% |
| Hillsboro, AL | 590 | 41 | 18.0% |
Here are the best places to live in Alabama
Safest States In The US
Check out the 10 most dangerous cities in Alabama
Check out the 10 safest cities in Alabama