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 | Romulus | 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. |
Rockwood, MI | 3,177 | 1 | 98.0% |
Maybee, MI | 613 | 1 | 98.0% |
Flat Rock, MI | 9,974 | 1 | 98.0% |
Carleton, MI | 2,449 | 1 | 98.0% |
Gibraltar, MI | 4,546 | 1 | 98.0% |
Romulus, MI | 23,544 | 56 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Hialeah Gardens, FL | 23,546 | 41 | 18.0% |
Barstow, CA | 23,547 | 89 | 78.0% |
West Puente Valley, CA | 23,555 | 72 | 44.0% |
Fish Hawk, FL | 23,556 | 43 | 14.0% |
Watertown, WI | 23,561 | 37 | 26.0% |
Romulus, MI | 23,544 | 56 | 12.0% |