| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 64°F | 52°F | 8.0" |
| February | 46°F | 68°F | 56°F | 5.1" |
| March | 52°F | 75°F | 63°F | 5.5" |
| April | 59°F | 81°F | 69°F | 4.9" |
| May | 64°F | 86°F | 74°F | 7.0" |
| June | 72°F | 91°F | 80°F | 7.5" |
| July | 74°F | 92°F | 82°F | 6.0" |
| August | 74°F | 92°F | 81°F | 9.7" |
| September | 69°F | 90°F | 78°F | 4.4" |
| October | 58°F | 83°F | 69°F | 3.2" |
| November | 49°F | 73°F | 59°F | 5.0" |
| December | 45°F | 67°F | 54°F | 5.9" |
| Index | Addis | Louisiana | National |
| Air quality index | 45 | 106 | 42 |
| Pollution index | 1,932,420 | 2,526,475 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 224 |
| Days with moderate air quality | 132 |
| Days w/ poor A.Q. for sensitive groups | 9 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.060% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Grosse Tete, LA | 514 | 45 | 10.0% |
| Monticello, LA | 4,926 | 45 | 10.0% |
| Bayou Goula, LA | 370 | 45 | 10.0% |
| Oak Hills Place, LA | 8,472 | 45 | 10.0% |
| Westminster, LA | 2,713 | 45 | 10.0% |
| Addis, LA | 5,635 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Warrenton, OR | 5,635 | 18 | 64.0% |
| Kayenta, AZ | 5,634 | 49 | 2.0% |
| Paola, KS | 5,634 | 47 | 6.0% |
| Sioux Lookout, ON | 5,634 | n/a | |
| Campbelltown, PA | 5,632 | 42 | 16.0% |
| Addis, LA | 5,635 | 45 | 10.0% |
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