| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 35°F | 50°F | 43°F | 11.1" |
| February | 38°F | 54°F | 46°F | 7.1" |
| March | 46°F | 65°F | 56°F | 6.7" |
| April | 54°F | 74°F | 65°F | 10.2" |
| May | 62°F | 81°F | 72°F | 7.9" |
| June | 71°F | 89°F | 81°F | 4.8" |
| July | 73°F | 90°F | 82°F | 5.6" |
| August | 72°F | 90°F | 82°F | 7.4" |
| September | 65°F | 84°F | 75°F | 33.9" |
| October | 54°F | 74°F | 64°F | 26.5" |
| November | 44°F | 63°F | 54°F | 11.0" |
| December | 39°F | 55°F | 47°F | 12.3" |
| Index | Meridianville | Alabama | National |
| Air quality index | 44 | 37 | 42 |
| Pollution index | 6,960,530 | 3,012,339 | 2,726,193 |
| Measurement | Total |
| Days measured | 361 |
| Days with good air quality | 255 |
| Days with moderate air quality | 106 |
| 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. |
| Hazel Green, AL | 3,629 | 44 | 12.0% |
| New Market, AL | 1,115 | 44 | 12.0% |
| Park City, TN | 3,500 | 44 | 12.0% |
| Ardmore, AL | 1,347 | 44 | 12.0% |
| Huntsville, AL | 199,845 | 44 | 12.0% |
| Meridianville, AL | 7,520 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Williamsburg, FL | 7,520 | 39 | 22.0% |
| Haddon Heights, NJ | 7,520 | 51 | 2.0% |
| Auburn, GA | 7,519 | 37 | 26.0% |
| Port Jefferson Station, NY | 7,516 | 43 | 14.0% |
| Locust Grove, GA | 7,525 | 52 | 4.0% |
| Meridianville, AL | 7,520 | 44 | 12.0% |
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