| 2023 Hardiness Zone: | Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 9b: 25°F to 30°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: | 34h - Mid-Coast Barrier Islands and Coastal Marshes |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 77551 - Galveston, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 49 | 51 | 58 | 65 | 72 | 78 | 80 | 79 | 75 | 68 | 59 | 52 | 65 |
| Avg Max Temp (°F) | 61 | 64 | 69 | 75 | 81 | 86 | 89 | 89 | 86 | 79 | 71 | 64 | 76 |
| Avg Precip (In.) | 4.09 | 2.62 | 2.78 | 2.6 | 3.73 | 4.09 | 3.47 | 4.26 | 5.8 | 3.48 | 3.69 | 3.56 | 44.18 |