| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 17°F | 32°F | 24°F | 1.8" |
| February | 17°F | 33°F | 24°F | 1.2" |
| March | 27°F | 46°F | 35°F | 2.1" |
| April | 37°F | 59°F | 48°F | 2.7" |
| May | 48°F | 71°F | 60°F | 4.1" |
| June | 58°F | 80°F | 69°F | 3.5" |
| July | 62°F | 83°F | 73°F | 3.4" |
| August | 61°F | 81°F | 71°F | 3.2" |
| September | 54°F | 74°F | 63°F | 3.2" |
| October | 43°F | 62°F | 52°F | 2.7" |
| November | 32°F | 49°F | 40°F | 1.9" |
| December | 23°F | 36°F | 29°F | 1.7" |
| Index | Novi | Michigan | National |
| Air quality index | 40 | 69 | 42 |
| Pollution index | 180,667 | 4,161,606 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 292 |
| Days with moderate air quality | 73 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| 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. |
| Northville, MI | 5,968 | 40 | 20.0% |
| South Lyon, MI | 11,818 | 40 | 20.0% |
| Plymouth, MI | 9,168 | 40 | 20.0% |
| Milford, MI | 6,502 | 40 | 20.0% |
| Ann Arbor, MI | 121,093 | 40 | 20.0% |
| Novi, MI | 60,439 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Wesley Chapel, FL | 60,534 | 43 | 14.0% |
| Sanford, FL | 60,337 | 37 | 26.0% |
| Lakewood, WA | 60,564 | 30 | 40.0% |
| Mirabel, QC | 60,296 | n/a | |
| Monterey Park, CA | 60,597 | 72 | 44.0% |
| Novi, MI | 60,439 | 40 | 20.0% |
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