| 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 | 36 | 38 | 50 |
| Pollution index | 1,270,470 | 1,270,108 | 5,066,862 |
| Measurement | Total |
| Days measured | 120 |
| Days with good air quality | 92 |
| Days with moderate air quality | 28 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City, State | Population | Air Quality Index | National Avg. |
| Friendship, AR | 186 | 31 | 38% |
| Donaldson, AR | 334 | 31 | 38% |
| Leola, AR | 533 | 31 | 38% |
| Lonsdale, AR | 145 | 36 | 28% |
| Rockport, AR | 739 | 36 | 28% |
| Malvern, AR | 10,937 | 36 | 28% |
| City, State | Population | Air Quality Index | National Avg. |
| Ogdensburg, NY | 10,937 | 31 | 38% |
| Fairfield, AL | 10,937 | 50 | = 100 |
| Brooklyn, OH | 10,936 | 55 | 10% |
| Suffern, NY | 10,936 | 53 | 6% |
| Broomall, PA | 10,935 | 57 | 14% |
| Malvern, AR | 10,937 | 36 | 28% |
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