| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 65°F | 52°F | 7.3" |
| February | 45°F | 67°F | 54°F | 7.3" |
| March | 52°F | 74°F | 62°F | 7.7" |
| April | 58°F | 80°F | 68°F | 9.7" |
| May | 63°F | 84°F | 73°F | 10.8" |
| June | 71°F | 90°F | 80°F | 6.2" |
| July | 72°F | 90°F | 80°F | 5.8" |
| August | 72°F | 90°F | 80°F | 9.5" |
| September | 69°F | 89°F | 77°F | 8.0" |
| October | 58°F | 82°F | 69°F | 24.8" |
| November | 47°F | 71°F | 57°F | 9.5" |
| December | 46°F | 66°F | 54°F | 10.8" |
| Index | Ventress | Louisiana | National |
| Air quality index | 45 | 106 | 42 |
| Pollution index | 1,313,820 | 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 | 0.003% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.002% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Maringouin, LA | 536 | 45 | 10.0% |
| Jackson, LA | 4,941 | 45 | 10.0% |
| Erwinville, LA | 2,815 | 45 | 10.0% |
| Morganza, LA | 626 | 45 | 10.0% |
| Fordoche, LA | 953 | 45 | 10.0% |
| Ventress, LA | 839 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Tulelake, CA | 839 | 29 | 42.0% |
| Dayton, IA | 839 | 37 | 26.0% |
| Horseshoe Bend, ID | 839 | 36 | 28.0% |
| Brownstown, IL | 839 | 40 | 20.0% |
| Middletown, MI | 839 | 38 | 24.0% |
| Ventress, LA | 839 | 45 | 10.0% |
Here are the best places to live in Louisiana
See the best places to live in Ventress
These are the 10 cheapest cities in Louisiana
These are the largest cities in Louisiana