| 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 | Chattahoochee | Florida | National |
| Air quality index | 36 | 35 | 50 |
| Pollution index | 2,559,160 | 15,391,344 | 5,066,862 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 306 |
| Days with moderate air quality | 56 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City, State | Population | Air Quality Index | National Avg. |
| Grand Ridge, FL | 824 | 33 | 34% |
| Quincy, FL | 7,743 | 36 | 28% |
| Sneads, FL | 1,864 | 36 | 28% |
| Greensboro, FL | 648 | 36 | 28% |
| Gretna, FL | 1,457 | 36 | 28% |
| Chattahoochee, FL | 3,150 | 36 | 28% |
| City, State | Population | Air Quality Index | National Avg. |
| Cashmere, WA | 3,150 | 27 | 46% |
| Grantville, GA | 3,151 | 52 | 4% |
| East Prairie, MO | 3,151 | 36 | 28% |
| Georgetown, IN | 3,152 | 55 | 10% |
| Sonora, TX | 3,148 | 285 | 470% |
| Chattahoochee, FL | 3,150 | 36 | 28% |