Norman Park, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.3 °C (low) to 25.3 °C (high). Annual precipitation averages 1280.7 Millimeters. Norman Park is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.9 °C | 16.1 °C | 119.38 mm |
| February | 5.7 °C | 18.2 °C | 108.97 mm |
| March | 8.6 °C | 21.8 °C | 130.81 mm |
| April | 12.4 °C | 25.6 °C | 89.92 mm |
| May | 17 °C | 29.3 °C | 69.6 mm |
| June | 20.9 °C | 31.7 °C | 139.19 mm |
| July | 22.1 °C | 32.8 °C | 135.13 mm |
| August | 21.9 °C | 32.4 °C | 132.08 mm |
| September | 19.5 °C | 30.6 °C | 110.49 mm |
| October | 14 °C | 26.3 °C | 76.45 mm |
| November | 8.1 °C | 21.2 °C | 72.39 mm |
| December | 5.3 °C | 17.4 °C | 96.27 mm |
| Annual | 13.3 °C | 25.3 °C | 1280.68 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| 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 |