| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 46°F | 64°F | 54°F | 4.5" |
| February | 48°F | 67°F | 56°F | 3.0" |
| March | 55°F | 73°F | 63°F | 12.7" |
| April | 61°F | 79°F | 69°F | 7.3" |
| May | 67°F | 84°F | 75°F | 4.3" |
| June | 73°F | 89°F | 80°F | 5.2" |
| July | 75°F | 90°F | 81°F | 4.4" |
| August | 75°F | 90°F | 81°F | 4.9" |
| September | 71°F | 87°F | 78°F | 6.4" |
| October | 60°F | 80°F | 69°F | 3.9" |
| November | 51°F | 72°F | 60°F | 3.1" |
| December | 49°F | 67°F | 56°F | 3.7" |
| Index | Charenton | Louisiana | National |
| Air quality index | 41 | 106 | 42 |
| Pollution index | 1,868,490 | 2,526,475 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 280 |
| Days with moderate air quality | 85 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.020% |
| Mercury | 0.002% |
| City | Population | Air Quality Index | National Avg. |
| Sorrel, LA | 574 | 41 | 18.0% |
| Lydia, LA | 1,368 | 41 | 18.0% |
| Patterson, LA | 6,001 | 41 | 18.0% |
| Glencoe, LA | 265 | 41 | 18.0% |
| Baldwin, LA | 1,929 | 41 | 18.0% |
| Charenton, LA | 1,622 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Napavine, WA | 1,622 | 20 | 60.0% |
| Wembley, AB | 1,622 | n/a | |
| Aragon, GA | 1,621 | 44 | 12.0% |
| Pierz, MN | 1,621 | 29 | 42.0% |
| East Berlin, PA | 1,623 | 41 | 18.0% |
| Charenton, LA | 1,622 | 41 | 18.0% |