| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 40°F | 62°F | 50°F | 5.3" |
| February | 42°F | 65°F | 52°F | 5.1" |
| March | 49°F | 73°F | 60°F | 3.5" |
| April | 56°F | 80°F | 67°F | 5.5" |
| May | 64°F | 87°F | 75°F | 2.9" |
| June | 71°F | 93°F | 81°F | 3.7" |
| July | 73°F | 93°F | 81°F | 6.3" |
| August | 73°F | 92°F | 81°F | 6.3" |
| September | 67°F | 88°F | 76°F | 3.4" |
| October | 56°F | 81°F | 67°F | 2.8" |
| November | 46°F | 71°F | 57°F | 3.2" |
| December | 44°F | 66°F | 54°F | 6.5" |
| Index | Malvern | Alabama | National |
| Air quality index | 35 | 37 | 42 |
| Pollution index | 2,577,200 | 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 | 0.020% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.040% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Black, AL | 468 | 35 | 30.0% |
| Hartford, AL | 2,584 | 35 | 30.0% |
| Avon, AL | 543 | 35 | 30.0% |
| Dothan, AL | 68,608 | 35 | 30.0% |
| Madrid, AL | 281 | 35 | 30.0% |
| Malvern, AL | 1,702 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Coaling, AL | 1,702 | 35 | 30.0% |
| Sesser, IL | 1,702 | 43 | 14.0% |
| Hamilton, IN | 1,702 | 45 | 10.0% |
| Massey Drive, NL | 1,702 | n/a | |
| Owenton, KY | 1,701 | 42 | 16.0% |
| Malvern, AL | 1,702 | 35 | 30.0% |
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