| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 33°F | 54°F | 42°F | 3.5" |
| February | 36°F | 57°F | 45°F | 3.7" |
| March | 45°F | 67°F | 55°F | 6.2" |
| April | 53°F | 76°F | 63°F | 6.6" |
| May | 61°F | 82°F | 70°F | 6.8" |
| June | 70°F | 91°F | 80°F | 4.2" |
| July | 73°F | 94°F | 82°F | 4.8" |
| August | 72°F | 93°F | 82°F | 4.1" |
| September | 64°F | 87°F | 75°F | 3.3" |
| October | 53°F | 76°F | 64°F | 4.7" |
| November | 44°F | 65°F | 53°F | 4.7" |
| December | 36°F | 56°F | 45°F | 5.4" |
| Index | Malvern | Arkansas | National |
| Air quality index | 38 | 38 | 42 |
| Pollution index | 1,270,470 | 1,487,822 | 2,726,193 |
| Measurement | Total |
| Days measured | 121 |
| Days with good air quality | 93 |
| Days with moderate air quality | 28 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Leola, AR | 704 | 32 | 36.0% |
| Donaldson, AR | 348 | 32 | 36.0% |
| Friendship, AR | 230 | 32 | 36.0% |
| Poyen, AR | 361 | 38 | 24.0% |
| Traskwood, AR | 350 | 38 | 24.0% |
| Malvern, AR | 10,886 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Kings Mountain, NC | 10,885 | 36 | 28.0% |
| Sussex, WI | 10,884 | 44 | 12.0% |
| River Forest, IL | 10,883 | 55 | 10.0% |
| Camden, AR | 10,877 | 35 | 30.0% |
| Manchester, TN | 10,896 | 46 | 8.0% |
| Malvern, AR | 10,886 | 38 | 24.0% |
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