Grapevine, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.2 °C (low) to 24.8 °C (high). Annual precipitation averages 981.7 Millimeters. Grapevine is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.8 °C | 13.6 °C | 64.52 mm |
| February | 3.8 °C | 15.7 °C | 69.85 mm |
| March | 8.1 °C | 19.9 °C | 87.12 mm |
| April | 12.4 °C | 24.3 °C | 87.88 mm |
| May | 17.8 °C | 28.5 °C | 119.89 mm |
| June | 22.2 °C | 32.9 °C | 96.52 mm |
| July | 24.2 °C | 35.4 °C | 55.63 mm |
| August | 24 °C | 35.6 °C | 56.39 mm |
| September | 19.9 °C | 31.6 °C | 78.99 mm |
| October | 13.6 °C | 25.9 °C | 113.79 mm |
| November | 7.6 °C | 19.3 °C | 73.41 mm |
| December | 2.8 °C | 14.5 °C | 77.72 mm |
| Annual | 13.2 °C | 24.8 °C | 981.71 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |