Brooks, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.2 °C (low) to 22.6 °C (high). Annual precipitation averages 1293.1 Millimeters. Brooks is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.2 °C | 12.3 °C | 117.35 mm |
| February | 1.7 °C | 14.3 °C | 122.17 mm |
| March | 5.2 °C | 18.6 °C | 132.84 mm |
| April | 9.3 °C | 22.9 °C | 105.92 mm |
| May | 14.4 °C | 27 °C | 78.99 mm |
| June | 18.6 °C | 30.2 °C | 104.9 mm |
| July | 20.3 °C | 31.7 °C | 128.02 mm |
| August | 19.9 °C | 31.2 °C | 106.93 mm |
| September | 16.7 °C | 28.5 °C | 89.15 mm |
| October | 10.5 °C | 23.4 °C | 85.09 mm |
| November | 4.5 °C | 17.9 °C | 97.28 mm |
| December | 1.6 °C | 13.6 °C | 124.46 mm |
| Annual | 10.2 °C | 22.6 °C | 1293.1 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |