| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 10°F | 27°F | 18°F | 2.7" |
| February | 15°F | 38°F | 26°F | 3.2" |
| March | 26°F | 47°F | 36°F | 4.1" |
| April | 35°F | 61°F | 47°F | 5.3" |
| May | 41°F | 71°F | 56°F | 5.7" |
| June | 53°F | 81°F | 67°F | 9.3" |
| July | 55°F | 84°F | 70°F | 11.4" |
| August | 55°F | 82°F | 68°F | 13.1" |
| September | 51°F | 78°F | 64°F | 7.2" |
| October | 37°F | 63°F | 49°F | 6.7" |
| November | 27°F | 50°F | 38°F | 3.5" |
| December | 16°F | 33°F | 24°F | 3.6" |
| Index | Millston | Wisconsin | National |
| Air quality index | 35 | 69 | 42 |
| Pollution index | 1,453,040 | 2,842,418 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 310 |
| Days with moderate air quality | 55 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Tomah, WI | 9,342 | 35 | 30.0% |
| Black River Falls, WI | 3,473 | 35 | 30.0% |
| Warrens, WI | 493 | 35 | 30.0% |
| Cataract, WI | 166 | 35 | 30.0% |
| Wyeville, WI | 158 | 35 | 30.0% |
| Millston, WI | 108 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Arlington, AZ | 108 | 74 | 48.0% |
| Calvary, GA | 108 | 40 | 20.0% |
| New Liberty, IA | 108 | 46 | 8.0% |
| Shannon City, IA | 108 | 39 | 22.0% |
| Smiths Ferry, ID | 108 | 36 | 28.0% |
| Millston, WI | 108 | 35 | 30.0% |
Here are the best places to live in Wisconsin
See the best places to live in Millston
Check out the 10 safest cities in Wisconsin
Most Dangerous States In The US