Devine, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.7 °C (low) to 28.1 °C (high). Annual precipitation averages 731.8 Millimeters. Devine 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 | 4.9 °C | 18.6 °C | 38.61 mm |
| February | 7.1 °C | 21.1 °C | 37.85 mm |
| March | 10.9 °C | 24.6 °C | 64.01 mm |
| April | 14.4 °C | 28.3 °C | 53.59 mm |
| May | 19 °C | 31.6 °C | 94.74 mm |
| June | 22.1 °C | 34.6 °C | 71.37 mm |
| July | 23 °C | 36.1 °C | 50.04 mm |
| August | 22.9 °C | 36.6 °C | 56.9 mm |
| September | 20.4 °C | 33.5 °C | 97.54 mm |
| October | 15.6 °C | 29.3 °C | 79.5 mm |
| November | 10.1 °C | 23.3 °C | 44.96 mm |
| December | 5.9 °C | 19.3 °C | 42.67 mm |
| Annual | 14.7 °C | 28.1 °C | 731.78 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 |