Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 1°F | 19°F | 9°F | 0.3" |
February | 1°F | 22°F | 11°F | 1.2" |
March | 18°F | 38°F | 27°F | 5.4" |
April | 30°F | 52°F | 40°F | 3.6" |
May | 42°F | 65°F | 53°F | 3.7" |
June | 52°F | 74°F | 63°F | 9.0" |
July | 57°F | 80°F | 68°F | 18.1" |
August | 54°F | 77°F | 65°F | 1.7" |
September | 47°F | 68°F | 57°F | 13.9" |
October | 36°F | 53°F | 44°F | 4.1" |
November | 22°F | 38°F | 29°F | 5.0" |
December | 6°F | 21°F | 13°F | 2.4" |
Index | Cass Lake | Minnesota | National |
Air quality index | 29 | 35 | 42 |
Pollution index | 2,321,370 | 1,854,519 | 2,726,193 |
Measurement | Total |
Days measured | 359 |
Days with good air quality | 328 |
Days with moderate air quality | 29 |
Days w/ poor A.Q. for sensitive groups | 2 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.010% |
Lead | 0.010% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Bemidji, MN | 15,277 | 29 | 42.0% |
Laporte, MN | 105 | 29 | 42.0% |
Turtle River, MN | 85 | 29 | 42.0% |
Cass Lake, MN | 896 | 29 | 42.0% |
City | Population | Air Quality Index | National Avg. |
Courtland, AL | 896 | 41 | 18.0% |
Clay City, IL | 896 | 40 | 20.0% |
Buras, LA | 896 | 45 | 10.0% |
Cankton, LA | 896 | 41 | 18.0% |
Walhalla, ND | 896 | 33 | 34.0% |
Cass Lake, MN | 896 | 29 | 42.0% |