| 2023 Hardiness Zone: | Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| Average First Frost Date: | Jan. 21 - Jan. 31 |
| Average Last Frost Date: | Jan. 21 - Jan. 31 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 34f - Lower Rio Grande Alluvial Floodplain |
| Heat Zone Days: | 151 - 180 days Over 86°F |
Annual Climate Data for ZIP Code 78586 - San Benito, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 49 | 52 | 58 | 65 | 71 | 74 | 75 | 75 | 72 | 65 | 57 | 51 | 63 |
| Avg Max Temp (°F) | 69 | 73 | 79 | 84 | 89 | 93 | 95 | 95 | 92 | 86 | 78 | 71 | 84 |
| Avg Precip (In.) | 1.47 | 1.71 | 1.19 | 2.15 | 2.73 | 2.9 | 1.84 | 2.86 | 5 | 2.93 | 1.47 | 1.35 | 27.6 |