| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 61°F | 48°F | 9.4" |
| February | 41°F | 64°F | 51°F | 7.9" |
| March | 49°F | 73°F | 60°F | 13.5" |
| April | 56°F | 80°F | 67°F | 7.9" |
| May | 63°F | 86°F | 73°F | 10.8" |
| June | 71°F | 93°F | 81°F | 7.9" |
| July | 72°F | 94°F | 82°F | 3.8" |
| August | 73°F | 96°F | 82°F | 6.9" |
| September | 67°F | 91°F | 77°F | 6.3" |
| October | 55°F | 82°F | 66°F | 8.0" |
| November | 46°F | 71°F | 57°F | 6.3" |
| December | 41°F | 62°F | 50°F | 7.5" |
| Index | Natchitoches | Louisiana | National |
| Air quality index | 30 | 106 | 42 |
| Pollution index | 2,517,590 | 2,526,475 | 2,726,193 |
| Measurement | Total |
| Days measured | 119 |
| Days with good air quality | 107 |
| Days with moderate air quality | 12 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.070% |
| Lead | 0.010% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Point Place, LA | 602 | 30 | 40.0% |
| Vienna Bend, LA | 1,285 | 30 | 40.0% |
| Montgomery, LA | 778 | 30 | 40.0% |
| Clarence, LA | 329 | 30 | 40.0% |
| Provencal, LA | 265 | 30 | 40.0% |
| Natchitoches, LA | 17,711 | 30 | 40.0% |
| City | Population | Air Quality Index | National Avg. |
| White Settlement, TX | 17,716 | 33 | 34.0% |
| Takoma Park, MD | 17,703 | 47 | 6.0% |
| Lake Butler, FL | 17,700 | 39 | 22.0% |
| Zachary, LA | 17,699 | 45 | 10.0% |
| Elizabeth City, NC | 17,725 | 40 | 20.0% |
| Natchitoches, LA | 17,711 | 30 | 40.0% |
Here are the best places to live in Louisiana
See the best places to live in Natchitoches
Safest Cities In The US
Check out the 10 most dangerous cities in Louisiana