| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 14°F | 32°F | 23°F | 1.7" |
| February | 15°F | 35°F | 25°F | 1.6" |
| March | 27°F | 50°F | 38°F | 2.7" |
| April | 37°F | 64°F | 50°F | 4.3" |
| May | 47°F | 75°F | 61°F | 3.4" |
| June | 58°F | 84°F | 71°F | 5.1" |
| July | 62°F | 86°F | 74°F | 4.9" |
| August | 61°F | 84°F | 72°F | 5.3" |
| September | 53°F | 79°F | 65°F | 2.8" |
| October | 42°F | 66°F | 53°F | 2.9" |
| November | 30°F | 51°F | 40°F | 2.4" |
| December | 18°F | 36°F | 27°F | 2.5" |
| Index | Clinton | Wisconsin | National |
| Air quality index | 38 | 69 | 42 |
| Pollution index | 9,518,930 | 2,842,418 | 2,726,193 |
| Measurement | Total |
| Days measured | 203 |
| Days with good air quality | 185 |
| Days with moderate air quality | 18 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.005% |
| Benzene | 0.090% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.160% |
| Mercury | 0.090% |
| City | Population | Air Quality Index | National Avg. |
| Lake Lorraine, WI | 259 | 37 | 26.0% |
| Lauderdale Lakes, WI | 1,437 | 37 | 26.0% |
| Delavan, WI | 8,296 | 37 | 26.0% |
| Delavan Lake, WI | 2,752 | 37 | 26.0% |
| Walworth, WI | 2,835 | 37 | 26.0% |
| Clinton, WI | 1,994 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Hurstbourne Acres, KY | 1,995 | 49 | 2.0% |
| Warsaw, KY | 1,995 | 54 | 8.0% |
| Valencia, NM | 1,995 | 53 | 6.0% |
| Churchill, OH | 1,995 | 42 | 16.0% |
| Elida, OH | 1,995 | 39 | 22.0% |
| Clinton, WI | 1,994 | 38 | 24.0% |
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