Oliver, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.7 °F (low) to 77.4 °F (high). Annual precipitation averages 48.3 Inches. Oliver is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 36.9 °F | 60.3 °F | 3.94 in. |
| February | 39.7 °F | 63.8 °F | 3.76 in. |
| March | 45.6 °F | 70.8 °F | 3.79 in. |
| April | 52.8 °F | 77.9 °F | 3.27 in. |
| May | 61.4 °F | 84.7 °F | 3.31 in. |
| June | 69.0 °F | 90.4 °F | 5.53 in. |
| July | 72.1 °F | 92.8 °F | 5.18 in. |
| August | 71.7 °F | 91.1 °F | 5.73 in. |
| September | 66.8 °F | 86.4 °F | 4.18 in. |
| October | 55.8 °F | 78.4 °F | 2.79 in. |
| November | 44.6 °F | 69.2 °F | 2.8 in. |
| December | 39.5 °F | 62.4 °F | 4.05 in. |
| Annual | 54.7 °F | 77.4 °F | 48.33 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |