Arley, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.9 °F (low) to 71.4 °F (high). Annual precipitation averages 61.7 Inches. Arley 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 | 29.6 °F | 51.1 °F | 5.88 in. |
| February | 32.9 °F | 55.2 °F | 5.82 in. |
| March | 39.6 °F | 63.8 °F | 5.8 in. |
| April | 47.5 °F | 72.0 °F | 5.61 in. |
| May | 56.8 °F | 79.1 °F | 5.29 in. |
| June | 64.7 °F | 85.8 °F | 5.12 in. |
| July | 68.0 °F | 88.6 °F | 4.84 in. |
| August | 67.1 °F | 88.4 °F | 4.19 in. |
| September | 61.1 °F | 83.8 °F | 4.34 in. |
| October | 48.8 °F | 73.6 °F | 4.01 in. |
| November | 38.1 °F | 62.3 °F | 4.52 in. |
| December | 33.1 °F | 53.6 °F | 6.3 in. |
| Annual | 48.9 °F | 71.4 °F | 61.72 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 |