| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 15°F | 28°F | 21°F | 1.8" |
| February | 15°F | 30°F | 22°F | 1.1" |
| March | 26°F | 43°F | 34°F | 3.6" |
| April | 36°F | 56°F | 45°F | 7.5" |
| May | 47°F | 68°F | 56°F | 4.1" |
| June | 56°F | 77°F | 66°F | 4.1" |
| July | 60°F | 81°F | 70°F | 1.5" |
| August | 59°F | 78°F | 68°F | 4.1" |
| September | 51°F | 72°F | 61°F | 5.1" |
| October | 42°F | 59°F | 50°F | 5.8" |
| November | 31°F | 46°F | 38°F | 2.1" |
| December | 20°F | 32°F | 26°F | 4.5" |
| Index | Campbellsport | Wisconsin | National |
| Air quality index | 36 | 69 | 42 |
| Pollution index | 1,468,840 | 2,842,418 | 2,726,193 |
| Measurement | Total |
| Days measured | 202 |
| Days with good air quality | 195 |
| Days with moderate air quality | 7 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Brownsville, WI | 692 | 36 | 28.0% |
| Theresa, WI | 1,199 | 36 | 28.0% |
| Oakfield, WI | 1,082 | 36 | 28.0% |
| North Fond du Lac, WI | 5,076 | 36 | 28.0% |
| Eden, WI | 799 | 36 | 28.0% |
| Campbellsport, WI | 1,830 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Mathews, LA | 1,830 | 41 | 18.0% |
| Devon, PA | 1,830 | 51 | 2.0% |
| Lynnwood-Pricedale, PA | 1,830 | 56 | 12.0% |
| McCrory, AR | 1,831 | 45 | 10.0% |
| Horton, KS | 1,829 | 43 | 14.0% |
| Campbellsport, WI | 1,830 | 36 | 28.0% |
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