| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 36°F | 29°F | 3.5" |
| February | 27°F | 43°F | 34°F | 1.7" |
| March | 36°F | 56°F | 45°F | 5.3" |
| April | 43°F | 65°F | 53°F | 5.1" |
| May | 53°F | 74°F | 63°F | 3.8" |
| June | 61°F | 83°F | 71°F | 3.9" |
| July | 61°F | 88°F | 75°F | 2.7" |
| August | 57°F | 86°F | 71°F | 5.4" |
| September | 54°F | 78°F | 65°F | 8.2" |
| October | 45°F | 66°F | 54°F | 4.8" |
| November | 35°F | 54°F | 43°F | 4.4" |
| December | 27°F | 40°F | 33°F | 5.4" |
| Index | Jonesboro | Indiana | National |
| Air quality index | 35 | 56 | 42 |
| Pollution index | 508,399 | 2,719,453 | 2,726,193 |
| Measurement | Total |
| Days measured | 352 |
| Days with good air quality | 319 |
| Days with moderate air quality | 33 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Van Buren, IN | 897 | 31 | 38.0% |
| Warren, IN | 1,199 | 31 | 38.0% |
| Landess, IN | 89 | 31 | 38.0% |
| Fowlerton, IN | 244 | 35 | 30.0% |
| Upland, IN | 3,701 | 35 | 30.0% |
| Jonesboro, IN | 1,302 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Westhaven-Moonstone, CA | 1,302 | 27 | 46.0% |
| Nelson, GA | 1,302 | 37 | 26.0% |
| Labadieville, LA | 1,302 | 41 | 18.0% |
| Brilliant, OH | 1,302 | 46 | 8.0% |
| L'Isle-aux-Allumettes, QC | 1,302 | n/a | |
| Jonesboro, IN | 1,302 | 35 | 30.0% |
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