| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 16°F | 33°F | 25°F | 1.8" |
| February | 15°F | 34°F | 25°F | 1.6" |
| March | 26°F | 47°F | 36°F | 2.4" |
| April | 36°F | 61°F | 48°F | 3.4" |
| May | 46°F | 72°F | 59°F | 3.8" |
| June | 54°F | 80°F | 68°F | 3.7" |
| July | 58°F | 84°F | 72°F | 3.2" |
| August | 57°F | 82°F | 70°F | 2.7" |
| September | 50°F | 76°F | 62°F | 2.4" |
| October | 40°F | 63°F | 51°F | 2.5" |
| November | 29°F | 50°F | 40°F | 2.1" |
| December | 22°F | 38°F | 30°F | 1.9" |
| Index | Manchester | Michigan | National |
| Air quality index | 39 | 69 | 42 |
| Pollution index | 2,493,750 | 4,161,606 | 2,726,193 |
| Measurement | Total |
| Days measured | 358 |
| Days with good air quality | 286 |
| Days with moderate air quality | 72 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Vineyard Lake, MI | 817 | 39 | 22.0% |
| Manitou Beach-Devils Lake, MI | 1,923 | 39 | 22.0% |
| Clinton, MI | 2,885 | 39 | 22.0% |
| Brooklyn, MI | 1,088 | 39 | 22.0% |
| Onsted, MI | 1,249 | 39 | 22.0% |
| Manchester, MI | 2,170 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Centerville, CA | 2,170 | 60 | 20.0% |
| New Carlisle, IN | 2,169 | 42 | 16.0% |
| East Ithaca, NY | 2,169 | 34 | 32.0% |
| Spring Grove, PA | 2,169 | 41 | 18.0% |
| Lavallette, NJ | 2,171 | 41 | 18.0% |
| Manchester, MI | 2,170 | 39 | 22.0% |
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