| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 9°F | 25°F | 17°F | 2.1" |
| February | 11°F | 29°F | 19°F | 3.4" |
| March | 25°F | 43°F | 33°F | 3.4" |
| April | 37°F | 58°F | 46°F | 3.7" |
| May | 47°F | 70°F | 58°F | 7.3" |
| June | 57°F | 79°F | 68°F | 8.3" |
| July | 62°F | 84°F | 72°F | 7.2" |
| August | 60°F | 81°F | 70°F | 8.3" |
| September | 51°F | 73°F | 61°F | 7.3" |
| October | 40°F | 59°F | 48°F | 6.7" |
| November | 28°F | 45°F | 36°F | 3.9" |
| December | 15°F | 29°F | 21°F | 2.9" |
| Index | Knapp | Wisconsin | National |
| Air quality index | 34 | 69 | 42 |
| Pollution index | 2,108,790 | 2,842,418 | 2,726,193 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 305 |
| Days with moderate air quality | 58 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.001% |
| Mercury | 0.003% |
| City | Population | Air Quality Index | National Avg. |
| Boyceville, WI | 1,168 | 34 | 32.0% |
| Wheeler, WI | 302 | 34 | 32.0% |
| Tainter Lake, WI | 2,797 | 34 | 32.0% |
| Downing, WI | 137 | 34 | 32.0% |
| Glenwood City, WI | 1,112 | 34 | 32.0% |
| Knapp, WI | 641 | 34 | 32.0% |
| City | Population | Air Quality Index | National Avg. |
| Valley Acres, CA | 641 | 67 | 34.0% |
| Deer Creek, IL | 641 | 41 | 18.0% |
| Waverly, KS | 641 | 22 | 56.0% |
| Tangipahoa, LA | 641 | 30 | 40.0% |
| Eagle Bend, MN | 641 | 29 | 42.0% |
| Knapp, WI | 641 | 34 | 32.0% |
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