Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 22°F | 33°F | 27°F | 3.1" |
February | 21°F | 34°F | 27°F | 3.9" |
March | 30°F | 46°F | 37°F | 5.1" |
April | 41°F | 59°F | 49°F | 4.1" |
May | 52°F | 70°F | 60°F | 4.8" |
June | 62°F | 79°F | 70°F | 4.5" |
July | 67°F | 83°F | 74°F | 4.7" |
August | 65°F | 81°F | 73°F | 4.3" |
September | 59°F | 74°F | 66°F | 5.3" |
October | 47°F | 62°F | 54°F | 3.5" |
November | 36°F | 49°F | 42°F | 7.2" |
December | 28°F | 38°F | 32°F | 1.4" |
Index | Rockwood | Michigan | National |
Air quality index | 1 | 69 | 42 |
Pollution index | 1,741,370 | 4,161,606 | 2,726,193 |
Measurement | Total |
Days measured | 359 |
Days with good air quality | 355 |
Days with moderate air quality | 4 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.010% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Gibraltar, MI | 4,546 | 1 | 98.0% |
South Monroe, MI | 6,194 | 1 | 98.0% |
Estral Beach, MI | 367 | 1 | 98.0% |
Detroit Beach, MI | 2,128 | 1 | 98.0% |
Stony Point, MI | 1,624 | 1 | 98.0% |
Rockwood, MI | 3,177 | 1 | 98.0% |
City | Population | Air Quality Index | National Avg. |
Ripley, WV | 3,177 | 35 | 30.0% |
Nyssa, OR | 3,176 | 36 | 28.0% |
Havana, IL | 3,178 | 41 | 18.0% |
Annetta, TX | 3,178 | 33 | 34.0% |
Rush City, MN | 3,175 | 46 | 8.0% |
Rockwood, MI | 3,177 | 1 | 98.0% |