Phil Campbell, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50 °F (low) to 70.7 °F (high). Annual precipitation averages 63.1 Inches. Phil Campbell 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 30.7 °F | 50.1 °F | 5.64 in. |
| February | 33.6 °F | 54.0 °F | 5.82 in. |
| March | 40.9 °F | 62.8 °F | 5.56 in. |
| April | 49.0 °F | 71.4 °F | 5.86 in. |
| May | 58.0 °F | 78.4 °F | 5.67 in. |
| June | 65.4 °F | 85.7 °F | 5.01 in. |
| July | 68.6 °F | 88.6 °F | 5.16 in. |
| August | 67.9 °F | 88.4 °F | 4.76 in. |
| September | 62.0 °F | 83.2 °F | 4.24 in. |
| October | 50.4 °F | 73.0 °F | 4.12 in. |
| November | 39.6 °F | 61.1 °F | 4.7 in. |
| December | 34.2 °F | 52.2 °F | 6.59 in. |
| Annual | 50 °F | 70.7 °F | 63.13 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |