| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 5°F | 19°F | 12°F | 2.9" |
| February | 7°F | 23°F | 15°F | 2.5" |
| March | 16°F | 33°F | 24°F | 3.6" |
| April | 30°F | 48°F | 39°F | 3.5" |
| May | 41°F | 62°F | 51°F | 3.9" |
| June | 51°F | 71°F | 61°F | 4.8" |
| July | 56°F | 77°F | 67°F | 4.3" |
| August | 53°F | 74°F | 64°F | 4.2" |
| September | 46°F | 66°F | 56°F | 4.3" |
| October | 36°F | 53°F | 44°F | 4.8" |
| November | 27°F | 40°F | 33°F | 4.4" |
| December | 13°F | 25°F | 19°F | 4.4" |
| Index | Van Buren | Maine | National |
| Air quality index | 31 | 33 | 42 |
| Pollution index | 3,228,440 | 3,417,521 | 2,726,193 |
| Measurement | Total |
| Days measured | 361 |
| Days with good air quality | 348 |
| Days with moderate air quality | 13 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.040% |
| Mercury | 0.030% |
| City | Population | Air Quality Index | National Avg. |
| Van Buren, ME | 1,648 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Fort St. James, BC | 1,648 | n/a | |
| Dauphin Island, AL | 1,649 | 32 | 36.0% |
| Maple Park, IL | 1,647 | 42 | 16.0% |
| Vienna, IL | 1,649 | 44 | 12.0% |
| Pine Prairie, LA | 1,647 | 30 | 40.0% |
| Van Buren, ME | 1,648 | 31 | 38.0% |