| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 49°F | 39°F | 3.2" |
| February | 33°F | 51°F | 41°F | 3.1" |
| March | 42°F | 63°F | 52°F | 5.3" |
| April | 51°F | 73°F | 62°F | 6.2" |
| May | 60°F | 81°F | 70°F | 7.1" |
| June | 69°F | 91°F | 80°F | 2.7" |
| July | 72°F | 91°F | 81°F | 3.4" |
| August | 71°F | 91°F | 80°F | 3.1" |
| September | 63°F | 85°F | 73°F | 3.5" |
| October | 51°F | 75°F | 61°F | 4.1" |
| November | 41°F | 61°F | 50°F | 4.0" |
| December | 34°F | 51°F | 42°F | 5.5" |
| Index | Jonesboro | Arkansas | National |
| Air quality index | 45 | 38 | 42 |
| Pollution index | 1,119,950 | 1,487,822 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 221 |
| Days with moderate air quality | 139 |
| Days w/ poor A.Q. for sensitive groups | 5 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.270% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Paragould, AR | 28,821 | 26 | 48.0% |
| Sedgwick, AR | 168 | 45 | 10.0% |
| Cash, AR | 319 | 45 | 10.0% |
| Bay, AR | 2,341 | 45 | 10.0% |
| Trumann, AR | 7,000 | 45 | 10.0% |
| Jonesboro, AR | 77,391 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Upland, CA | 77,348 | 89 | 78.0% |
| Layton, UT | 77,268 | 45 | 10.0% |
| Kendall, FL | 77,228 | 41 | 18.0% |
| Cedar Park, TX | 77,181 | 44 | 12.0% |
| Perris, CA | 77,708 | 89 | 78.0% |
| Jonesboro, AR | 77,391 | 45 | 10.0% |
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