Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 16°F | 33°F | 24°F | 2.6" |
February | 16°F | 34°F | 25°F | 1.7" |
March | 25°F | 47°F | 35°F | 2.4" |
April | 35°F | 62°F | 48°F | 3.5" |
May | 46°F | 72°F | 59°F | 3.9" |
June | 56°F | 81°F | 69°F | 4.5" |
July | 60°F | 85°F | 72°F | 3.5" |
August | 58°F | 83°F | 70°F | 4.4" |
September | 51°F | 76°F | 63°F | 3.0" |
October | 41°F | 63°F | 51°F | 3.7" |
November | 31°F | 50°F | 40°F | 2.6" |
December | 22°F | 37°F | 29°F | 2.3" |
Index | DeWitt | Michigan | National |
Air quality index | 36 | 69 | 42 |
Pollution index | 8,357,230 | 4,161,606 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 330 |
Days with moderate air quality | 35 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.070% |
Benzene | 0.070% |
Carbon Tetrachloride | 0.020% |
Lead | 0.090% |
Mercury | 0.120% |
City | Population | Air Quality Index | National Avg. |
Ovid, MI | 1,559 | 36 | 28.0% |
Potterville, MI | 2,731 | 36 | 28.0% |
Edgemont Park, MI | 2,413 | 36 | 28.0% |
Okemos, MI | 24,295 | 36 | 28.0% |
Laingsburg, MI | 1,586 | 36 | 28.0% |
DeWitt, MI | 4,743 | 36 | 28.0% |
City | Population | Air Quality Index | National Avg. |
Dallas, NC | 4,744 | 36 | 28.0% |
West Elmira, NY | 4,745 | 35 | 30.0% |
Berlin, MD | 4,740 | 36 | 28.0% |
Brookdale, SC | 4,740 | 43 | 14.0% |
Madisonville, TX | 4,740 | 41 | 18.0% |
DeWitt, MI | 4,743 | 36 | 28.0% |