| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 9a: 20F to 25F |
| Average First Frost Date: | Frost Rare |
| Average Last Frost Date: | Frost Rare |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 75j - Sea Islands/Coastal Marsh |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 32034 - Fernandina Beach, FL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 44 | 46 | 52 | 58 | 65 | 72 | 74 | 75 | 72 | 64 | 55 | 47 | 60 |
| Avg Max Temp (°F) | 63 | 65 | 71 | 77 | 83 | 87 | 90 | 89 | 86 | 78 | 72 | 65 | 77 |
| Avg Precip (In.) | 3.81 | 3.19 | 4.02 | 2.9 | 2.89 | 5.33 | 5.74 | 5.47 | 7.64 | 4.14 | 2.63 | 2.74 | 50.5 |