| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 64°F | 52°F | 10.7" |
| February | 46°F | 69°F | 56°F | 9.6" |
| March | 52°F | 74°F | 62°F | 9.5" |
| April | 59°F | 80°F | 69°F | 12.2" |
| May | 63°F | 84°F | 73°F | 18.2" |
| June | 72°F | 89°F | 80°F | 8.0" |
| July | 73°F | 91°F | 81°F | 7.0" |
| August | 73°F | 91°F | 80°F | 13.6" |
| September | 70°F | 89°F | 78°F | 8.0" |
| October | 59°F | 82°F | 69°F | 9.8" |
| November | 49°F | 73°F | 60°F | 6.0" |
| December | 47°F | 68°F | 56°F | 6.6" |
| Index | Labadieville | Louisiana | National |
| Air quality index | 41 | 106 | 42 |
| Pollution index | 2,337,990 | 2,526,475 | 2,726,193 |
| Measurement | Total |
| Days measured | 361 |
| Days with good air quality | 272 |
| Days with moderate air quality | 87 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.002% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Amelia, LA | 2,236 | 41 | 18.0% |
| Morgan City, LA | 10,963 | 41 | 18.0% |
| Siracusaville, LA | 387 | 41 | 18.0% |
| North Vacherie, LA | 1,641 | 41 | 18.0% |
| Moonshine, LA | 127 | 41 | 18.0% |
| Labadieville, LA | 1,302 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Westhaven-Moonstone, CA | 1,302 | 27 | 46.0% |
| Nelson, GA | 1,302 | 37 | 26.0% |
| Jonesboro, IN | 1,302 | 35 | 30.0% |
| Brilliant, OH | 1,302 | 46 | 8.0% |
| L'Isle-aux-Allumettes, QC | 1,302 | n/a | |
| Labadieville, LA | 1,302 | 41 | 18.0% |
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