| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 20°F | 34°F | 27°F | 4.5" |
| February | 20°F | 35°F | 27°F | 3.8" |
| March | 30°F | 47°F | 37°F | 5.3" |
| April | 40°F | 60°F | 49°F | 3.0" |
| May | 51°F | 71°F | 61°F | 5.1" |
| June | 60°F | 80°F | 70°F | 5.5" |
| July | 63°F | 84°F | 73°F | 5.5" |
| August | 61°F | 81°F | 71°F | 6.2" |
| September | 55°F | 75°F | 64°F | 5.9" |
| October | 44°F | 64°F | 53°F | 3.6" |
| November | 34°F | 51°F | 42°F | 5.4" |
| December | 26°F | 39°F | 32°F | 2.9" |
| Index | South Monroe | Michigan | National |
| Air quality index | 1 | 69 | 42 |
| Pollution index | 1,741,370 | 4,161,606 | 2,726,193 |
| Measurement | Total |
| Days measured | 359 |
| Days with good air quality | 355 |
| Days with moderate air quality | 4 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Estral Beach, MI | 367 | 1 | 98.0% |
| Luna Pier, MI | 1,134 | 1 | 98.0% |
| Rockwood, MI | 3,177 | 1 | 98.0% |
| Carleton, MI | 2,449 | 1 | 98.0% |
| Maybee, MI | 613 | 1 | 98.0% |
| South Monroe, MI | 6,194 | 1 | 98.0% |
| City | Population | Air Quality Index | National Avg. |
| Rushville, IN | 6,194 | 28 | 44.0% |
| Salem, IN | 6,193 | 35 | 30.0% |
| St. Robert, MO | 6,193 | 39 | 22.0% |
| Jan Phyl Village, FL | 6,195 | 36 | 28.0% |
| Ocean Shores, WA | 6,196 | 20 | 60.0% |
| South Monroe, MI | 6,194 | 1 | 98.0% |
Here are the best places to live in Michigan
Check out the 10 safest cities in Michigan
These are the 10 most affordable cities in Michigan
10 Best cities in Michigan for employment