| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 19°F | 35°F | 27°F | 2.0" |
| February | 19°F | 35°F | 27°F | 1.8" |
| March | 29°F | 49°F | 38°F | 2.9" |
| April | 40°F | 62°F | 50°F | 3.6" |
| May | 51°F | 74°F | 62°F | 3.8" |
| June | 61°F | 83°F | 71°F | 4.1" |
| July | 64°F | 86°F | 75°F | 4.2" |
| August | 63°F | 84°F | 73°F | 3.7" |
| September | 56°F | 77°F | 66°F | 3.6" |
| October | 45°F | 65°F | 54°F | 2.5" |
| November | 34°F | 52°F | 43°F | 2.6" |
| December | 25°F | 40°F | 32°F | 2.6" |
| Index | Williston | Ohio | National |
| Air quality index | 40 | 40 | 42 |
| Pollution index | 3,553,510 | 4,472,386 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 291 |
| Days with moderate air quality | 73 |
| 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 | 0.010% |
| Lead | 0.040% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Luna Pier, MI | 1,134 | 1 | 98.0% |
| Harbor View, OH | 156 | 40 | 20.0% |
| Oak Harbor, OH | 2,708 | 40 | 20.0% |
| Curtice, OH | 1,251 | 40 | 20.0% |
| Walbridge, OH | 3,145 | 40 | 20.0% |
| Williston, OH | 419 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Elkmont, AL | 419 | 44 | 12.0% |
| Sigel, IL | 419 | 40 | 20.0% |
| Gypsum, KS | 419 | 32 | 36.0% |
| Strathmoor Manor, KY | 419 | 49 | 2.0% |
| Allen, MD | 419 | 36 | 28.0% |
| Williston, OH | 419 | 40 | 20.0% |
Here are the best places to live in Ohio
Check out the 10 most dangerous cities in Ohio
Safest States In The US
See the best places to live in Williston