| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 13°F | 28°F | 21°F | 3.6" |
| February | 14°F | 30°F | 22°F | 1.7" |
| March | 26°F | 45°F | 35°F | 3.4" |
| April | 37°F | 59°F | 47°F | 6.3" |
| May | 47°F | 71°F | 59°F | 5.1" |
| June | 57°F | 79°F | 68°F | 7.3" |
| July | 61°F | 83°F | 72°F | 3.8" |
| August | 59°F | 81°F | 70°F | 5.7" |
| September | 51°F | 74°F | 62°F | 4.6" |
| October | 41°F | 61°F | 50°F | 6.5" |
| November | 30°F | 47°F | 38°F | 4.2" |
| December | 18°F | 33°F | 25°F | 3.3" |
| Index | Hebron | Wisconsin | National |
| Air quality index | 37 | 69 | 42 |
| Pollution index | 2,796,310 | 2,842,418 | 2,726,193 |
| Measurement | Total |
| Days measured | 205 |
| Days with good air quality | 189 |
| Days with moderate air quality | 15 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.005% |
| Lead | 0.001% |
| Mercury | 0.004% |
| City | Population | Air Quality Index | National Avg. |
| Nashotah, WI | 1,287 | 37 | 26.0% |
| Eagle, WI | 2,138 | 37 | 26.0% |
| Summit, WI | 4,922 | 37 | 26.0% |
| Lake Koshkonong, WI | 958 | 37 | 26.0% |
| Johnson Creek, WI | 3,029 | 37 | 26.0% |
| Hebron, WI | 317 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| Gillsville, GA | 317 | 37 | 26.0% |
| Maunaloa, HI | 317 | 30 | 40.0% |
| Granville, IA | 317 | 35 | 30.0% |
| Mystic, IA | 317 | 39 | 22.0% |
| Ute, IA | 317 | 35 | 30.0% |
| Hebron, WI | 317 | 37 | 26.0% |
Here are the best places to live in Wisconsin
See the best places to live in Hebron
Check out the 10 most dangerous cities in Wisconsin
Most Dangerous Cities In The US