| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Frost Rare |
| Average Last Frost Date: | Frost Rare |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 75k - Gulf Barrier Islands and Coastal Marshes |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 36528 - Dauphin Island, AL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 44 | 46 | 54 | 61 | 69 | 74 | 76 | 76 | 73 | 64 | 55 | 47 | 62 |
| Avg Max Temp (°F) | 58 | 61 | 67 | 74 | 81 | 87 | 89 | 89 | 86 | 77 | 69 | 61 | 75 |
| Avg Precip (In.) | 6.13 | 5.14 | 6.28 | 4.44 | 5.23 | 4.98 | 7.29 | 6.86 | 5.25 | 3.53 | 4.64 | 4.58 | 64.35 |