Lynn, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.2 °F (low) to 72 °F (high). Annual precipitation averages 62.3 Inches. Lynn is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.9 °F | 51.4 °F | 5.8 in. |
| February | 33.2 °F | 55.7 °F | 5.89 in. |
| March | 40.0 °F | 64.4 °F | 5.69 in. |
| April | 47.8 °F | 72.7 °F | 5.92 in. |
| May | 57.2 °F | 79.7 °F | 5.3 in. |
| June | 65.0 °F | 86.3 °F | 5.13 in. |
| July | 68.3 °F | 89.2 °F | 5.09 in. |
| August | 67.5 °F | 89.1 °F | 4.49 in. |
| September | 61.2 °F | 84.4 °F | 4.28 in. |
| October | 49.1 °F | 74.2 °F | 3.92 in. |
| November | 38.2 °F | 62.7 °F | 4.59 in. |
| December | 33.2 °F | 53.9 °F | 6.2 in. |
| Annual | 49.2 °F | 72 °F | 62.3 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| 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 |