Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 6°F | 28°F | 17°F | 0.5" |
February | 9°F | 34°F | 20°F | 0.7" |
March | 22°F | 48°F | 34°F | 1.0" |
April | 33°F | 62°F | 47°F | 2.2" |
May | 44°F | 73°F | 58°F | 3.2" |
June | 55°F | 83°F | 69°F | 4.5" |
July | 61°F | 89°F | 75°F | 2.7" |
August | 58°F | 85°F | 71°F | 3.3" |
September | 49°F | 79°F | 63°F | 2.8" |
October | 36°F | 64°F | 49°F | 2.2" |
November | 22°F | 49°F | 34°F | 0.8" |
December | 9°F | 31°F | 19°F | 1.3" |
Index | Alpena | South Dakota | National |
Air quality index | 25 | 36 | 42 |
Pollution index | 83,825 | 345,623 | 2,726,193 |
Measurement | Total |
Days measured | 361 |
Days with good air quality | 325 |
Days with moderate air quality | 36 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.001% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Huron, SD | 13,289 | 25 | 50.0% |
Virgil, SD | 26 | 25 | 50.0% |
Morningside, SD | 73 | 25 | 50.0% |
Woonsocket, SD | 748 | 42 | 16.0% |
Lane, SD | 31 | 42 | 16.0% |
Alpena, SD | 400 | 25 | 50.0% |
City | Population | Air Quality Index | National Avg. |
Edmondson, AR | 400 | 45 | 10.0% |
Terminous, CA | 400 | 45 | 10.0% |
Cloud Lake, FL | 400 | 36 | 28.0% |
Lakota, IA | 400 | 15 | 70.0% |
Arenzville, IL | 400 | 40 | 20.0% |
Alpena, SD | 400 | 25 | 50.0% |