| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 14°F | 30°F | 22°F | 2.3" |
| February | 14°F | 31°F | 23°F | 2.8" |
| March | 26°F | 45°F | 35°F | 3.7" |
| April | 36°F | 58°F | 46°F | 5.9" |
| May | 46°F | 71°F | 58°F | 4.8" |
| June | 56°F | 79°F | 67°F | 7.8" |
| July | 59°F | 82°F | 70°F | 11.4" |
| August | 57°F | 81°F | 68°F | 5.4" |
| September | 50°F | 74°F | 61°F | 7.1" |
| October | 40°F | 61°F | 50°F | 5.8" |
| November | 29°F | 48°F | 38°F | 5.2" |
| December | 19°F | 34°F | 27°F | 3.3" |
| Index | Eagle Lake | Wisconsin | National |
| Air quality index | 39 | 69 | 42 |
| Pollution index | 4,091,350 | 2,842,418 | 2,726,193 |
| Measurement | Total |
| Days measured | 203 |
| Days with good air quality | 174 |
| Days with moderate air quality | 28 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Bloomfield, WI | 4,725 | 37 | 26.0% |
| Springfield, WI | 131 | 37 | 26.0% |
| Lake Ivanhoe, WI | 398 | 37 | 26.0% |
| East Troy, WI | 4,310 | 37 | 26.0% |
| Mukwonago, WI | 8,142 | 37 | 26.0% |
| Eagle Lake, WI | 1,010 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Chalfant, CA | 1,010 | 47 | 6.0% |
| Flovilla, GA | 1,010 | 38 | 24.0% |
| Rapids City, IL | 1,010 | 46 | 8.0% |
| Poseyville, IN | 1,010 | 45 | 10.0% |
| Grant City, MO | 1,010 | 43 | 14.0% |
| Eagle Lake, WI | 1,010 | 39 | 22.0% |
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