| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 18°F | 35°F | 26°F | 2.3" |
| February | 19°F | 36°F | 27°F | 1.8" |
| March | 32°F | 52°F | 41°F | 3.1" |
| April | 42°F | 65°F | 53°F | 4.7" |
| May | 53°F | 75°F | 63°F | 5.5" |
| June | 63°F | 83°F | 73°F | 4.4" |
| July | 65°F | 85°F | 75°F | 4.7" |
| August | 63°F | 84°F | 73°F | 4.4" |
| September | 56°F | 79°F | 66°F | 4.9" |
| October | 45°F | 66°F | 54°F | 4.7" |
| November | 33°F | 52°F | 42°F | 3.2" |
| December | 23°F | 38°F | 30°F | 3.1" |
| Index | Panola | Illinois | National |
| Air quality index | 44 | 41 | 42 |
| Pollution index | 7,745,200 | 3,148,694 | 2,726,193 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 256 |
| Days with moderate air quality | 108 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.030% |
| Benzene | 0.070% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.860% |
| Mercury | 0.210% |
| City | Population | Air Quality Index | National Avg. |
| Rutland, IL | 279 | 0 | 100.0% |
| Dana, IL | 99 | 0 | 100.0% |
| La Rose, IL | 114 | 41 | 18.0% |
| Eureka, IL | 5,485 | 41 | 18.0% |
| Washburn, IL | 1,109 | 41 | 18.0% |
| Panola, IL | 18 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Rockville, AL | 18 | 42 | 16.0% |
| Shoshone, CA | 18 | 15 | 70.0% |
| Conejos, CO | 18 | 15 | 70.0% |
| Piedra, CO | 18 | 44 | 12.0% |
| Elkport, IA | 18 | 29 | 42.0% |
| Panola, IL | 18 | 44 | 12.0% |
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