Addison, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.9 °F (low) to 71.1 °F (high). Annual precipitation averages 61.8 Inches. Addison is located in USDA Plant Hardiness Zone 7b. 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 | 29.5 °F | 50.6 °F | 5.56 in. |
| February | 32.9 °F | 54.7 °F | 5.72 in. |
| March | 39.6 °F | 63.2 °F | 5.81 in. |
| April | 47.4 °F | 71.5 °F | 5.58 in. |
| May | 56.7 °F | 78.7 °F | 5.15 in. |
| June | 64.6 °F | 85.6 °F | 5.01 in. |
| July | 67.9 °F | 88.4 °F | 4.88 in. |
| August | 67.0 °F | 88.1 °F | 4.53 in. |
| September | 60.9 °F | 83.5 °F | 4.5 in. |
| October | 48.7 °F | 73.5 °F | 3.84 in. |
| November | 38.1 °F | 62.0 °F | 4.73 in. |
| December | 33.1 °F | 53.2 °F | 6.44 in. |
| Annual | 48.9 °F | 71.1 °F | 61.75 in. |
| 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |