| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 44°F | 63°F | 53°F | 11.1" |
| February | 47°F | 66°F | 55°F | 4.3" |
| March | 53°F | 73°F | 62°F | 6.1" |
| April | 60°F | 79°F | 69°F | 7.2" |
| May | 66°F | 85°F | 75°F | 20.3" |
| June | 73°F | 90°F | 81°F | 8.9" |
| July | 75°F | 91°F | 82°F | 10.1" |
| August | 76°F | 92°F | 83°F | 3.4" |
| September | 71°F | 89°F | 79°F | 17.1" |
| October | 60°F | 81°F | 69°F | 4.7" |
| November | 51°F | 72°F | 61°F | 5.6" |
| December | 47°F | 65°F | 54°F | 6.6" |
| Index | Roanoke | Louisiana | National |
| Air quality index | 45 | 106 | 42 |
| Pollution index | 907,803 | 2,526,475 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 239 |
| Days with moderate air quality | 126 |
| 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. |
| Gueydan, LA | 1,184 | 41 | 18.0% |
| Mermentau, LA | 616 | 41 | 18.0% |
| Morse, LA | 1,239 | 41 | 18.0% |
| Egan, LA | 1,002 | 41 | 18.0% |
| Lake Arthur, LA | 2,742 | 45 | 10.0% |
| Roanoke, LA | 550 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Eek, AK | 550 | 31 | 38.0% |
| New Cuyama, CA | 550 | 44 | 12.0% |
| San Simeon, CA | 550 | 46 | 8.0% |
| Camargo, IL | 550 | 42 | 16.0% |
| Thebes, IL | 550 | 44 | 12.0% |
| Roanoke, LA | 550 | 45 | 10.0% |
Here are the best places to live in Louisiana
See the best places to live in Roanoke
Check out the 10 safest cities in Louisiana
Most Dangerous States In The US