Oak Park, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.5 °C (low) to 25.2 °C (high). Annual precipitation averages 1218.5 Millimeters. Oak Park 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.9 °C | 15.6 °C | 106.17 mm |
| February | 4.4 °C | 17.7 °C | 100.58 mm |
| March | 7.6 °C | 21.3 °C | 105.16 mm |
| April | 11.4 °C | 25.5 °C | 87.38 mm |
| May | 16.3 °C | 29.6 °C | 79.76 mm |
| June | 20.5 °C | 32.3 °C | 132.33 mm |
| July | 22.1 °C | 33.7 °C | 126.75 mm |
| August | 21.8 °C | 33.1 °C | 139.45 mm |
| September | 19.1 °C | 30.5 °C | 94.74 mm |
| October | 13 °C | 26 °C | 71.63 mm |
| November | 7.1 °C | 20.8 °C | 70.87 mm |
| December | 4.2 °C | 16.8 °C | 103.63 mm |
| Annual | 12.5 °C | 25.2 °C | 1218.45 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |