Jonesboro, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.1 °F (low) to 70.2 °F (high). Annual precipitation averages 52 Inches. Jonesboro is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.0 °F | 46.2 °F | 3.75 in. |
| February | 32.5 °F | 51.2 °F | 4.08 in. |
| March | 39.8 °F | 60.2 °F | 5.06 in. |
| April | 49.2 °F | 70.9 °F | 5.58 in. |
| May | 59.6 °F | 79.8 °F | 5.19 in. |
| June | 67.8 °F | 88.2 °F | 3.49 in. |
| July | 71.2 °F | 90.3 °F | 3.91 in. |
| August | 69.2 °F | 89.7 °F | 3.66 in. |
| September | 61.7 °F | 83.9 °F | 3.37 in. |
| October | 49.7 °F | 73.3 °F | 4.05 in. |
| November | 39.6 °F | 59.8 °F | 4.91 in. |
| December | 32.1 °F | 49.2 °F | 4.96 in. |
| Annual | 50.1 °F | 70.2 °F | 52.01 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |