Gonzales, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.6 °C (low) to 27.3 °C (high). Annual precipitation averages 892.6 Millimeters. Gonzales is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5 °C | 17.6 °C | 60.71 mm |
| February | 7.2 °C | 19.6 °C | 48.01 mm |
| March | 10.8 °C | 23.3 °C | 69.34 mm |
| April | 14.4 °C | 27.1 °C | 64.52 mm |
| May | 18.9 °C | 30.7 °C | 111.25 mm |
| June | 22.2 °C | 33.9 °C | 86.61 mm |
| July | 22.9 °C | 35.7 °C | 50.04 mm |
| August | 22.8 °C | 36.2 °C | 73.15 mm |
| September | 20.3 °C | 33.1 °C | 89.92 mm |
| October | 15.2 °C | 28.7 °C | 96.52 mm |
| November | 9.8 °C | 22.7 °C | 73.91 mm |
| December | 6 °C | 18.5 °C | 68.58 mm |
| Annual | 14.6 °C | 27.3 °C | 892.56 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |