| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 9°F | 23°F | 15°F | 0.4" |
| February | 8°F | 25°F | 16°F | 1.1" |
| March | 19°F | 39°F | 28°F | 2.3" |
| April | 32°F | 54°F | 42°F | 2.7" |
| May | 45°F | 66°F | 54°F | 3.7" |
| June | 55°F | 79°F | 66°F | 4.9" |
| July | 57°F | 81°F | 68°F | 8.9" |
| August | 55°F | 77°F | 65°F | 4.6" |
| September | 50°F | 73°F | 60°F | 5.5" |
| October | 41°F | 58°F | 49°F | 5.2" |
| November | 26°F | 40°F | 32°F | 2.0" |
| December | 13°F | 25°F | 19°F | 0.6" |
| Index | Montreal | Wisconsin | National |
| Air quality index | 8 | 69 | 42 |
| Pollution index | 1,807,460 | 2,842,418 | 2,726,193 |
| Measurement | Total |
| Days measured | 59 |
| Days with good air quality | 59 |
| Days with moderate air quality | 0 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Hurley, WI | 1,395 | 8 | 84.0% |
| Wakefield, MI | 1,669 | 8 | 84.0% |
| Bessemer, MI | 1,659 | 8 | 84.0% |
| Ironwood, MI | 4,925 | 8 | 84.0% |
| Saxon, WI | 58 | 35 | 30.0% |
| Montreal, WI | 697 | 8 | 84.0% |
| City | Population | Air Quality Index | National Avg. |
| Athol, ID | 697 | 43 | 14.0% |
| Clifton, ID | 697 | 44 | 12.0% |
| Algoma, MS | 697 | 39 | 22.0% |
| Freedom Plains, NY | 697 | 36 | 28.0% |
| Merrill, OR | 697 | 29 | 42.0% |
| Montreal, WI | 697 | 8 | 84.0% |
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