| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 1990 Hardiness Zone: | Zone 9a: 20F to 25F | |
| Average First Frost Date: | Jan. 11 - Jan. 20 | |
| Average Last Frost Date: | Jan. 21 - Jan. 31 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 34d - Coastal Sand Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 181 - 210 days Over 86°F |
Annual Climate Data for ZIP Code 78355 - Falfurrias, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 44 | 48 | 55 | 61 | 68 | 72 | 73 | 73 | 70 | 62 | 53 | 46 | 60 |
| Avg Max Temp (°F) | 68 | 72 | 79 | 85 | 90 | 94 | 97 | 97 | 92 | 85 | 77 | 70 | 84 |
| Avg Precip (In.) | 1.14 | 1.57 | .93 | 1.5 | 2.99 | 3.29 | 1.84 | 2.82 | 3.99 | 3.23 | 1.3 | 1.09 | 25.69 |