Montgomery, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.3 °C (low) to 24.7 °C (high). Annual precipitation averages 1350.8 Millimeters. Montgomery is located in USDA Plant Hardiness Zone 8b. 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 | 2.4 °C | 14.3 °C | 118.36 mm |
| February | 4.2 °C | 16.9 °C | 122.43 mm |
| March | 7.7 °C | 20.9 °C | 132.59 mm |
| April | 11.4 °C | 24.9 °C | 107.19 mm |
| May | 16.3 °C | 28.9 °C | 97.28 mm |
| June | 20.5 °C | 32 °C | 122.68 mm |
| July | 22.1 °C | 33.2 °C | 134.62 mm |
| August | 21.8 °C | 33.1 °C | 112.27 mm |
| September | 19 °C | 30.8 °C | 95.5 mm |
| October | 12.6 °C | 25.7 °C | 74.42 mm |
| November | 6.3 °C | 19.9 °C | 104.14 mm |
| December | 3.7 °C | 15.5 °C | 129.29 mm |
| Annual | 12.3 °C | 24.7 °C | 1350.77 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 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |