| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 31°F | 53°F | 40°F | 4.4" |
| February | 34°F | 56°F | 44°F | 5.2" |
| March | 43°F | 66°F | 54°F | 6.4" |
| April | 51°F | 75°F | 63°F | 8.7" |
| May | 60°F | 82°F | 70°F | 8.2" |
| June | 69°F | 91°F | 80°F | 3.8" |
| July | 71°F | 93°F | 82°F | 7.7" |
| August | 71°F | 92°F | 81°F | 5.9" |
| September | 63°F | 86°F | 73°F | 5.7" |
| October | 51°F | 76°F | 62°F | 5.3" |
| November | 41°F | 64°F | 51°F | 5.8" |
| December | 34°F | 54°F | 43°F | 8.1" |
| Index | Jacksonville | Arkansas | National |
| Air quality index | 45 | 38 | 42 |
| Pollution index | 369,314 | 1,487,822 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 235 |
| Days with moderate air quality | 130 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.005% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Cabot, AR | 26,376 | 45 | 10.0% |
| McAlmont, AR | 1,692 | 45 | 10.0% |
| Sweet Home, AR | 926 | 45 | 10.0% |
| Cammack Village, AR | 887 | 45 | 10.0% |
| Gibson, AR | 4,701 | 45 | 10.0% |
| Jacksonville, AR | 28,442 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Woolwich, ON | 28,438 | n/a | |
| Williamsport, PA | 28,437 | 35 | 30.0% |
| Burbank, IL | 28,447 | 55 | 10.0% |
| Temescal Valley, CA | 28,420 | 89 | 78.0% |
| Henderson, KY | 28,469 | 45 | 10.0% |
| Jacksonville, AR | 28,442 | 45 | 10.0% |
Here are the best places to live in Arkansas
See the best places to live in Jacksonville
These are the 10 cheapest cities in Arkansas
Check out the 10 safest cities in Arkansas