| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 5°F | 24°F | 15°F | 1.9" |
| February | 5°F | 27°F | 16°F | 1.7" |
| March | 18°F | 41°F | 29°F | 3.2" |
| April | 30°F | 54°F | 41°F | 5.0" |
| May | 40°F | 67°F | 53°F | 7.0" |
| June | 50°F | 75°F | 62°F | 8.0" |
| July | 53°F | 79°F | 66°F | 6.0" |
| August | 51°F | 77°F | 63°F | 8.7" |
| September | 44°F | 69°F | 56°F | 10.2" |
| October | 35°F | 55°F | 44°F | 8.0" |
| November | 24°F | 41°F | 32°F | 3.3" |
| December | 10°F | 26°F | 19°F | 2.3" |
| Index | Tomahawk | 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. |
| Rhinelander, WI | 7,839 | 34 | 32.0% |
| Tomahawk, WI | 3,259 | 34 | 32.0% |
| City | Population | Air Quality Index | National Avg. |
| Avondale Estates, GA | 3,259 | 52 | 4.0% |
| Galena, IL | 3,259 | 29 | 42.0% |
| Meadowdale, WA | 3,259 | 18 | 64.0% |
| Eden, NY | 3,258 | 39 | 22.0% |
| Marion, AL | 3,260 | 35 | 30.0% |
| Tomahawk, WI | 3,259 | 34 | 32.0% |