| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 36°F | 55°F | 44°F | 8.9" |
| February | 38°F | 58°F | 47°F | 10.4" |
| March | 47°F | 68°F | 56°F | 11.1" |
| April | 54°F | 76°F | 64°F | 15.2" |
| May | 61°F | 82°F | 71°F | 9.3" |
| June | 69°F | 90°F | 79°F | 7.9" |
| July | 72°F | 92°F | 81°F | 4.2" |
| August | 71°F | 92°F | 80°F | 7.0" |
| September | 65°F | 87°F | 75°F | 8.4" |
| October | 53°F | 77°F | 64°F | 4.6" |
| November | 43°F | 66°F | 53°F | 3.4" |
| December | 39°F | 57°F | 47°F | 8.8" |
| Index | Eupora | Mississippi | National |
| Air quality index | 33 | 40 | 42 |
| Pollution index | 421,223 | 1,514,109 | 2,726,193 |
| Measurement | Total |
| Days measured | 101 |
| Days with good air quality | 77 |
| Days with moderate air quality | 24 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.004% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Slate Springs, MS | 89 | 33 | 34.0% |
| Maben, MS | 802 | 33 | 34.0% |
| Sturgis, MS | 197 | 33 | 34.0% |
| Walthall, MS | 137 | 33 | 34.0% |
| Mathiston, MS | 652 | 33 | 34.0% |
| Eupora, MS | 2,436 | 33 | 34.0% |
| City | Population | Air Quality Index | National Avg. |
| Freeport, FL | 2,436 | 31 | 38.0% |
| Stagecoach, NV | 2,436 | 39 | 22.0% |
| Division No. 9, Subd. C, NL | 2,436 | n/a | |
| Oakhurst, OK | 2,435 | 45 | 10.0% |
| Clearwater, KS | 2,437 | 40 | 20.0% |
| Eupora, MS | 2,436 | 33 | 34.0% |
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