| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 31°F | 50°F | 39°F | 4.0" |
| February | 34°F | 53°F | 42°F | 3.7" |
| March | 43°F | 64°F | 53°F | 7.7" |
| April | 52°F | 74°F | 62°F | 7.3" |
| May | 60°F | 80°F | 69°F | 7.6" |
| June | 68°F | 89°F | 78°F | 6.7" |
| July | 71°F | 92°F | 80°F | 5.6" |
| August | 70°F | 91°F | 79°F | 6.5" |
| September | 62°F | 84°F | 72°F | 5.1" |
| October | 51°F | 74°F | 61°F | 4.8" |
| November | 42°F | 62°F | 51°F | 5.3" |
| December | 34°F | 52°F | 42°F | 6.9" |
| Index | Southside | Arkansas | National |
| Air quality index | 47 | 38 | 50 |
| Pollution index | 234,372 | 1,270,108 | 5,066,862 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 211 |
| Days with moderate air quality | 153 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.020% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Cushman, AR | 446 | 34 | 32% |
| Magness, AR | 175 | 47 | 6% |
| Pleasant Plains, AR | 277 | 47 | 6% |
| Batesville, AR | 10,579 | 47 | 6% |
| Moorefield, AR | 188 | 47 | 6% |
| Southside, AR | 2,519 | 47 | 6% |
| City, State | Population | Air Quality Index | National Avg. |
| Cordes Lakes, AZ | 2,519 | 41 | 18% |
| Amboy, IL | 2,519 | 1 | 98% |
| Covington, IN | 2,519 | 52 | 4% |
| Montpelier, ID | 2,519 | 47 | 6% |
| Amherst, VA | 2,519 | 275 | 450% |
| Southside, AR | 2,519 | 47 | 6% |