| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 44°F | 65°F | 53°F | 10.2" |
| February | 49°F | 70°F | 58°F | 7.3" |
| March | 56°F | 74°F | 64°F | 10.7" |
| April | 60°F | 80°F | 69°F | 12.3" |
| May | 65°F | 82°F | 73°F | 13.0" |
| June | 72°F | 87°F | 78°F | 9.4" |
| July | 73°F | 91°F | 81°F | 5.5" |
| August | 72°F | 91°F | 80°F | 16.1" |
| September | 67°F | 89°F | 77°F | 5.4" |
| October | 58°F | 83°F | 69°F | 15.2" |
| November | 53°F | 74°F | 62°F | 9.7" |
| December | 47°F | 65°F | 55°F | 10.6" |
| Index | Eunice | Louisiana | National |
| Air quality index | 41 | 106 | 42 |
| Pollution index | 511,913 | 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 | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Chataignier, LA | 249 | 41 | 18.0% |
| Mamou, LA | 3,137 | 41 | 18.0% |
| Church Point, LA | 4,429 | 41 | 18.0% |
| Reddell, LA | 730 | 41 | 18.0% |
| Basile, LA | 2,132 | 41 | 18.0% |
| Eunice, LA | 9,754 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| San Diego Country Estates, CA | 9,752 | 64 | 28.0% |
| Ellisville, MO | 9,752 | 54 | 8.0% |
| Sugar Grove, IL | 9,756 | 0 | 100.0% |
| Sparta, WI | 9,751 | 35 | 30.0% |
| Oil City, PA | 9,750 | 9 | 82.0% |
| Eunice, LA | 9,754 | 41 | 18.0% |
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