| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 17°F | 37°F | 26°F | 2.3" |
| February | 18°F | 39°F | 28°F | 2.1" |
| March | 31°F | 54°F | 42°F | 3.1" |
| April | 41°F | 67°F | 54°F | 4.7" |
| May | 51°F | 77°F | 64°F | 4.4" |
| June | 62°F | 85°F | 73°F | 5.4" |
| July | 65°F | 88°F | 76°F | 3.4" |
| August | 64°F | 86°F | 74°F | 3.5" |
| September | 56°F | 81°F | 68°F | 4.1" |
| October | 44°F | 68°F | 55°F | 3.4" |
| November | 33°F | 55°F | 43°F | 2.9" |
| December | 22°F | 39°F | 30°F | 2.7" |
| Index | Liverpool | Illinois | National |
| Air quality index | 41 | 41 | 42 |
| Pollution index | 1,001,710 | 3,148,694 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 285 |
| Days with moderate air quality | 78 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.004% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.020% |
| City | Population | Air Quality Index | National Avg. |
| Easton, IL | 235 | 40 | 20.0% |
| Bath, IL | 300 | 40 | 20.0% |
| Topeka, IL | 62 | 41 | 18.0% |
| Banner, IL | 207 | 41 | 18.0% |
| Goofy Ridge, IL | 238 | 41 | 18.0% |
| Liverpool, IL | 128 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Ouzinkie, AK | 128 | 31 | 38.0% |
| East Pleasant View, CO | 128 | 58 | 16.0% |
| St. Olaf, IA | 128 | 29 | 42.0% |
| Conkling Park, ID | 128 | 43 | 14.0% |
| LaPlace, IL | 128 | 44 | 12.0% |
| Liverpool, IL | 128 | 41 | 18.0% |
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