| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 18°F | 32°F | 25°F | 3.5" |
| February | 16°F | 32°F | 24°F | 2.2" |
| March | 26°F | 43°F | 33°F | 2.2" |
| April | 36°F | 57°F | 45°F | 2.8" |
| May | 46°F | 69°F | 57°F | 3.2" |
| June | 56°F | 77°F | 66°F | 3.6" |
| July | 61°F | 81°F | 71°F | 4.0" |
| August | 60°F | 80°F | 69°F | 3.3" |
| September | 53°F | 74°F | 63°F | 3.1" |
| October | 43°F | 62°F | 52°F | 2.5" |
| November | 33°F | 49°F | 41°F | 2.9" |
| December | 24°F | 37°F | 30°F | 3.0" |
| Index | Croswell | Michigan | National |
| Air quality index | 38 | 69 | 42 |
| Pollution index | 30,180,300 | 4,161,606 | 2,726,193 |
| Measurement | Total |
| Days measured | 340 |
| Days with good air quality | 282 |
| Days with moderate air quality | 58 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.030% |
| Benzene | 0.390% |
| Carbon Tetrachloride | 0.080% |
| Lead | 0.130% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Port Sanilac, MI | 654 | 38 | 24.0% |
| Lexington, MI | 1,180 | 38 | 24.0% |
| Sandusky, MI | 2,796 | 38 | 24.0% |
| Peck, MI | 617 | 38 | 24.0% |
| Yale, MI | 2,216 | 38 | 24.0% |
| Croswell, MI | 2,402 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Caryville, TN | 2,402 | 46 | 8.0% |
| Boissevain-Morton, MB | 2,402 | n/a | |
| Rouses Point, NY | 2,403 | 37 | 26.0% |
| Dover, AR | 2,400 | 36 | 28.0% |
| Fort Polk North, LA | 2,400 | 30 | 40.0% |
| Croswell, MI | 2,402 | 38 | 24.0% |
Here are the best places to live in Michigan
Check out the 10 most dangerous cities in Michigan
Most Dangerous Cities In The US
These are the 10 cheapest cities in Michigan