| 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: | Frost Rare | |
| Average Last Frost Date: | Frost Rare | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 34b - Southern Subhumid Gulf Coastal Prairies | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 78380 - Robstown, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 45 | 48 | 55 | 62 | 69 | 73 | 75 | 75 | 71 | 63 | 54 | 47 | 61 |
| Avg Max Temp (°F) | 66 | 70 | 77 | 83 | 87 | 92 | 95 | 95 | 91 | 84 | 76 | 68 | 82 |
| Avg Precip (In.) | 1.78 | 1.9 | 1.69 | 1.92 | 3.48 | 3.63 | 2.3 | 3.48 | 4.89 | 3.87 | 2.09 | 1.47 | 32.48 |