Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 11°F | 30°F | 21°F | 2.0" |
February | 11°F | 31°F | 21°F | 1.4" |
March | 18°F | 41°F | 29°F | 1.8" |
April | 30°F | 55°F | 42°F | 3.5" |
May | 40°F | 69°F | 54°F | 2.8" |
June | 50°F | 78°F | 64°F | 3.7" |
July | 55°F | 83°F | 69°F | 3.3" |
August | 54°F | 81°F | 67°F | 3.5" |
September | 47°F | 74°F | 60°F | 3.2" |
October | 38°F | 60°F | 48°F | 3.4" |
November | 28°F | 47°F | 37°F | 2.0" |
December | 18°F | 34°F | 26°F | 2.1" |
Index | Alpena | Michigan | National |
Air quality index | 26 | 69 | 42 |
Pollution index | 2,801,040 | 4,161,606 | 2,726,193 |
Measurement | Total |
Days measured | 316 |
Days with good air quality | 288 |
Days with moderate air quality | 28 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.050% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.002% |
Lead | 0.030% |
Mercury | 0.220% |
City | Population | Air Quality Index | National Avg. |
Ossineke, MI | 828 | 26 | 48.0% |
Posen, MI | 205 | 32 | 36.0% |
Alpena, MI | 9,987 | 26 | 48.0% |
City | Population | Air Quality Index | National Avg. |
Linganore, MD | 9,988 | 40 | 20.0% |
Kinnelon, NJ | 9,988 | 51 | 2.0% |
Friendly, MD | 9,984 | 47 | 6.0% |
Temiskaming Shores, ON | 9,984 | n/a | |
Madera Acres, CA | 9,990 | 50 | = 100 |
Alpena, MI | 9,987 | 26 | 48.0% |