Ambrose, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.9 °C (low) to 25.4 °C (high). Annual precipitation averages 1236 Millimeters. Ambrose 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 | 3.6 °C | 15.9 °C | 109.22 mm |
| February | 5.1 °C | 17.9 °C | 102.11 mm |
| March | 8.1 °C | 21.7 °C | 120.4 mm |
| April | 12.1 °C | 25.7 °C | 84.84 mm |
| May | 16.6 °C | 29.7 °C | 72.14 mm |
| June | 20.7 °C | 32.2 °C | 127.76 mm |
| July | 22.1 °C | 33.4 °C | 123.44 mm |
| August | 21.8 °C | 32.8 °C | 142.75 mm |
| September | 19.2 °C | 30.6 °C | 109.73 mm |
| October | 13.5 °C | 26.3 °C | 76.96 mm |
| November | 7.7 °C | 21.3 °C | 69.34 mm |
| December | 4.7 °C | 17.3 °C | 97.28 mm |
| Annual | 12.9 °C | 25.4 °C | 1235.97 mm |
| 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 : -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 |