| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 41°F | 64°F | 51°F | 4.7" |
| February | 43°F | 67°F | 54°F | 5.6" |
| March | 49°F | 75°F | 61°F | 4.2" |
| April | 56°F | 81°F | 68°F | 4.8" |
| May | 64°F | 88°F | 75°F | 3.3" |
| June | 71°F | 93°F | 81°F | 4.2" |
| July | 73°F | 93°F | 81°F | 4.9" |
| August | 74°F | 93°F | 81°F | 5.6" |
| September | 69°F | 89°F | 78°F | 3.0" |
| October | 57°F | 82°F | 69°F | 2.2" |
| November | 47°F | 73°F | 58°F | 3.3" |
| December | 45°F | 68°F | 55°F | 5.7" |
| Index | Marianna | Florida | National |
| Air quality index | 35 | 35 | 42 |
| Pollution index | 3,341,080 | 7,570,785 | 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 | 0.002% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.460% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Bascom, FL | 99 | 35 | 30.0% |
| Greenwood, FL | 604 | 35 | 30.0% |
| Alford, FL | 570 | 35 | 30.0% |
| Grand Ridge, FL | 800 | 35 | 30.0% |
| Jacob City, FL | 257 | 35 | 30.0% |
| Marianna, FL | 6,607 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Stickney, IL | 6,607 | 55 | 10.0% |
| Covedale, OH | 6,606 | 54 | 8.0% |
| Sturtevant, WI | 6,606 | 39 | 22.0% |
| Upper Sandusky, OH | 6,609 | 39 | 22.0% |
| Scenic Oaks, TX | 6,611 | 49 | 2.0% |
| Marianna, FL | 6,607 | 35 | 30.0% |
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