| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F | |
| Average First Frost Date: | Nov. 21 - Nov. 30 | |
| Average Last Frost Date: | Mar. 11 - Mar. 20 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 30c - Balcones Canyonlands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 78258 - San Antonio, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 36 | 40 | 47 | 54 | 63 | 69 | 71 | 71 | 66 | 57 | 46 | 38 | 55 |
| Avg Max Temp (°F) | 61 | 66 | 73 | 79 | 85 | 90 | 94 | 94 | 89 | 81 | 70 | 63 | 79 |
| Avg Precip (In.) | 1.79 | 2.04 | 2.16 | 2.79 | 4.57 | 4.47 | 2.06 | 2.56 | 3.21 | 4.05 | 2.85 | 2.18 | 34.71 |