Garner, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.4 °F (low) to 71.7 °F (high). Annual precipitation averages 51.6 Inches. Garner is located in USDA Plant Hardiness Zone 8a. 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 | 29.6 °F | 48.8 °F | 3.63 in. |
| February | 32.9 °F | 53.8 °F | 3.95 in. |
| March | 40.7 °F | 62.5 °F | 5.12 in. |
| April | 49.8 °F | 72.3 °F | 5.45 in. |
| May | 59.6 °F | 80.2 °F | 5.63 in. |
| June | 68.1 °F | 88.4 °F | 3.37 in. |
| July | 71.3 °F | 91.8 °F | 3.55 in. |
| August | 69.7 °F | 91.2 °F | 3.41 in. |
| September | 62.0 °F | 85.1 °F | 3.39 in. |
| October | 49.5 °F | 74.5 °F | 4.34 in. |
| November | 39.3 °F | 61.1 °F | 4.57 in. |
| December | 32.3 °F | 51.2 °F | 5.22 in. |
| Annual | 50.4 °F | 71.7 °F | 51.63 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 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |