Arnoldsville, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.4 °F (low) to 72.9 °F (high). Annual precipitation averages 49.9 Inches. Arnoldsville 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 | 32.1 °F | 53.9 °F | 4.6 in. |
| February | 34.8 °F | 57.5 °F | 4.46 in. |
| March | 41.0 °F | 65.5 °F | 4.52 in. |
| April | 48.6 °F | 73.7 °F | 3.48 in. |
| May | 57.6 °F | 80.6 °F | 3.14 in. |
| June | 65.8 °F | 87.1 °F | 5.19 in. |
| July | 69.2 °F | 90.0 °F | 4.33 in. |
| August | 68.3 °F | 88.6 °F | 4.44 in. |
| September | 62.2 °F | 83.6 °F | 3.95 in. |
| October | 50.8 °F | 74.1 °F | 3.48 in. |
| November | 39.8 °F | 64.2 °F | 3.51 in. |
| December | 34.6 °F | 56.0 °F | 4.81 in. |
| Annual | 50.4 °F | 72.9 °F | 49.91 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |