| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 9b: 25°F to 30°F | |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F | |
| Average First Frost Date: | Jan. 11 - Jan. 20 | |
| Average Last Frost Date: | Jan. 21 - Jan. 31 | |
| Koppen-Geiger Climate Zone: | BSh - Hot Semi-Arid Climate | |
| Ecoregion: | 31c - Texas-Tamaulipan Thornscrub | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 181 - 210 days Over 86°F |
Annual Climate Data for ZIP Code 78076 - Zapata, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 45 | 49 | 56 | 64 | 71 | 74 | 76 | 76 | 72 | 64 | 55 | 47 | 62 |
| Avg Max Temp (°F) | 67 | 72 | 81 | 88 | 93 | 97 | 98 | 98 | 93 | 86 | 76 | 68 | 85 |
| Avg Precip (In.) | .72 | 1.04 | .79 | 1.39 | 2.32 | 2.69 | 1.56 | 1.84 | 3.67 | 1.89 | .95 | .88 | 19.74 |