| 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: | Nov. 21 - Nov. 30 | |
| Average Last Frost Date: | Mar. 1 - Mar. 10 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 31c - Texas-Tamaulipan Thornscrub | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 151 - 180 days Over 86°F |
Annual Climate Data for ZIP Code 78834 - Carrizo Springs, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 41 | 45 | 53 | 60 | 68 | 73 | 74 | 74 | 70 | 61 | 50 | 42 | 59 |
| Avg Max Temp (°F) | 66 | 71 | 79 | 85 | 90 | 95 | 98 | 98 | 93 | 84 | 74 | 66 | 83 |
| Avg Precip (In.) | .96 | 1.04 | 1 | 1.56 | 2.92 | 2.89 | 1.3 | 2.31 | 2.05 | 2.65 | 1.11 | .9 | 20.67 |