| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 6°F | 22°F | 14°F | 1.6" |
| February | 5°F | 25°F | 15°F | 1.1" |
| March | 17°F | 40°F | 28°F | 2.2" |
| April | 29°F | 52°F | 40°F | 4.0" |
| May | 41°F | 66°F | 53°F | 5.0" |
| June | 50°F | 74°F | 62°F | 5.9" |
| July | 54°F | 78°F | 66°F | 5.5" |
| August | 52°F | 76°F | 64°F | 4.5" |
| September | 45°F | 69°F | 56°F | 5.2" |
| October | 35°F | 54°F | 44°F | 3.7" |
| November | 25°F | 40°F | 32°F | 2.2" |
| December | 11°F | 26°F | 19°F | 3.1" |
| Index | Eagle River | Wisconsin | National |
| Air quality index | 34 | 69 | 42 |
| Pollution index | 3,625,510 | 2,842,418 | 2,726,193 |
| Measurement | Total |
| Days measured | 205 |
| Days with good air quality | 196 |
| Days with moderate air quality | 9 |
| 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 | 0.001% |
| Lead | 0.000% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Sayner, WI | 208 | 34 | 32.0% |
| Three Lakes, WI | 498 | 34 | 32.0% |
| Eagle River, WI | 1,536 | 34 | 32.0% |
| City | Population | Air Quality Index | National Avg. |
| Decatur, AR | 1,536 | 44 | 12.0% |
| Bokeelia, FL | 1,536 | 36 | 28.0% |
| McCaysville, GA | 1,536 | 1 | 98.0% |
| Limestone, IL | 1,536 | 0 | 100.0% |
| Farwell, TX | 1,535 | 25 | 50.0% |
| Eagle River, WI | 1,536 | 34 | 32.0% |
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