| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 43°F | 64°F | 53°F | 5.3" |
| February | 46°F | 67°F | 56°F | 3.6" |
| March | 53°F | 75°F | 63°F | 3.2" |
| April | 60°F | 81°F | 70°F | 4.6" |
| May | 67°F | 86°F | 76°F | 5.6" |
| June | 73°F | 91°F | 81°F | 6.2" |
| July | 75°F | 92°F | 82°F | 6.1" |
| August | 75°F | 93°F | 82°F | 8.4" |
| September | 71°F | 90°F | 79°F | 5.0" |
| October | 60°F | 83°F | 70°F | 3.9" |
| November | 50°F | 74°F | 61°F | 4.3" |
| December | 47°F | 67°F | 56°F | 6.5" |
| Index | Catahoula | Louisiana | National |
| Air quality index | 41 | 106 | 42 |
| Pollution index | 394,287 | 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 | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Breaux Bridge, LA | 8,213 | 41 | 18.0% |
| Henderson, LA | 2,261 | 41 | 18.0% |
| St. Martinville, LA | 5,844 | 41 | 18.0% |
| Broussard, LA | 12,248 | 41 | 18.0% |
| Loreauville, LA | 778 | 41 | 18.0% |
| Catahoula, LA | 1,170 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Wiggins, CO | 1,170 | 45 | 10.0% |
| San Antonio, FL | 1,170 | 36 | 28.0% |
| Conashaugh Lakes, PA | 1,170 | 34 | 32.0% |
| Martin, SD | 1,170 | 44 | 12.0% |
| Collinwood, TN | 1,170 | 27 | 46.0% |
| Catahoula, LA | 1,170 | 41 | 18.0% |
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