| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -1°F | 20°F | 9°F | 0.4" |
| February | 0°F | 24°F | 12°F | 0.4" |
| March | 15°F | 39°F | 27°F | 1.0" |
| April | 28°F | 53°F | 40°F | 1.8" |
| May | 38°F | 66°F | 51°F | 3.0" |
| June | 47°F | 74°F | 61°F | 4.8" |
| July | 52°F | 80°F | 66°F | 2.9" |
| August | 50°F | 77°F | 63°F | 3.3" |
| September | 43°F | 69°F | 55°F | 3.1" |
| October | 33°F | 54°F | 43°F | 2.4" |
| November | 20°F | 38°F | 29°F | 1.0" |
| December | 5°F | 22°F | 14°F | 0.5" |
| Index | Floodwood | Minnesota | National |
| Air quality index | 35 | 35 | 42 |
| Pollution index | 521,015 | 1,854,519 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 326 |
| Days with moderate air quality | 38 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Meadowlands, MN | 140 | 35 | 30.0% |
| Brookston, MN | 117 | 35 | 30.0% |
| Floodwood, MN | 446 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Hamilton Branch, CA | 446 | 46 | 8.0% |
| Humboldt, IL | 446 | 42 | 16.0% |
| Utica, KY | 446 | 43 | 14.0% |
| Edgefield, LA | 446 | 39 | 22.0% |
| Georgetown, LA | 446 | 30 | 40.0% |
| Floodwood, MN | 446 | 35 | 30.0% |
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