| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 18°F | 35°F | 26°F | 2.4" |
| February | 18°F | 36°F | 27°F | 2.3" |
| March | 27°F | 49°F | 37°F | 2.7" |
| April | 38°F | 63°F | 50°F | 3.2" |
| May | 49°F | 74°F | 61°F | 3.8" |
| June | 59°F | 83°F | 71°F | 3.7" |
| July | 63°F | 86°F | 74°F | 4.0" |
| August | 62°F | 84°F | 73°F | 4.5" |
| September | 55°F | 78°F | 65°F | 3.3" |
| October | 44°F | 65°F | 54°F | 2.5" |
| November | 33°F | 52°F | 42°F | 3.0" |
| December | 24°F | 39°F | 31°F | 2.9" |
| Index | Wayne | Michigan | National |
| Air quality index | 56 | 69 | 42 |
| Pollution index | 180,667 | 4,161,606 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 135 |
| Days with moderate air quality | 217 |
| Days w/ poor A.Q. for sensitive groups | 13 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.002% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Flat Rock, MI | 10,332 | 1 | 98.0% |
| Gibraltar, MI | 4,653 | 1 | 98.0% |
| Woodhaven, MI | 12,963 | 1 | 98.0% |
| South Rockwood, MI | 1,977 | 1 | 98.0% |
| Rockwood, MI | 3,275 | 1 | 98.0% |
| Wayne, MI | 17,566 | 56 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| East Cleveland, OH | 17,563 | 50 | = 100 |
| Poplar Bluff, MO | 17,570 | 26 | 48.0% |
| Islip, NY | 17,559 | 43 | 14.0% |
| Springfield, TN | 17,576 | 45 | 10.0% |
| South Ogden, UT | 17,591 | 45 | 10.0% |
| Wayne, MI | 17,566 | 56 | 12.0% |