Pell City, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.9 °C (low) to 23.1 °C (high). Annual precipitation averages 1479.8 Millimeters. Pell City is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.3 °C | 12.2 °C | 138.94 mm |
| February | 1.3 °C | 14.7 °C | 143.51 mm |
| March | 4.7 °C | 19.2 °C | 145.54 mm |
| April | 8.7 °C | 23.4 °C | 123.19 mm |
| May | 14.1 °C | 27.3 °C | 117.86 mm |
| June | 18.7 °C | 30.8 °C | 120.14 mm |
| July | 20.6 °C | 32.4 °C | 125.98 mm |
| August | 20 °C | 32.1 °C | 107.44 mm |
| September | 16.7 °C | 29.6 °C | 105.41 mm |
| October | 9.8 °C | 24.1 °C | 85.6 mm |
| November | 3.7 °C | 18.2 °C | 121.92 mm |
| December | 1.2 °C | 13.7 °C | 144.27 mm |
| Annual | 9.9 °C | 23.1 °C | 1479.8 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |