Griffithville, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.1 °F (low) to 71.6 °F (high). Annual precipitation averages 51.2 Inches. Griffithville 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 | 30.4 °F | 48.5 °F | 3.61 in. |
| February | 33.6 °F | 53.5 °F | 3.98 in. |
| March | 41.4 °F | 62.3 °F | 5.12 in. |
| April | 50.5 °F | 72.2 °F | 5.5 in. |
| May | 60.2 °F | 80.2 °F | 5.44 in. |
| June | 68.6 °F | 88.3 °F | 3.34 in. |
| July | 71.8 °F | 91.5 °F | 3.44 in. |
| August | 70.1 °F | 91.0 °F | 3.32 in. |
| September | 62.4 °F | 84.8 °F | 3.31 in. |
| October | 50.2 °F | 74.3 °F | 4.37 in. |
| November | 40.3 °F | 61.1 °F | 4.49 in. |
| December | 33.3 °F | 51.1 °F | 5.29 in. |
| Annual | 51.1 °F | 71.6 °F | 51.21 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 |