Carrizo Hill, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 59.1 °F (low) to 84 °F (high). Annual precipitation averages 20.4 Inches. Carrizo Hill 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 | 40.8 °F | 66.5 °F | 1.01 in. |
| February | 45.2 °F | 71.3 °F | 0.82 in. |
| March | 52.7 °F | 78.2 °F | 1.49 in. |
| April | 59.0 °F | 85.5 °F | 1.43 in. |
| May | 67.3 °F | 91.4 °F | 3.11 in. |
| June | 72.8 °F | 96.8 °F | 1.99 in. |
| July | 74.1 °F | 98.6 °F | 1.63 in. |
| August | 74.4 °F | 99.2 °F | 1.3 in. |
| September | 69.6 °F | 92.9 °F | 3.43 in. |
| October | 60.5 °F | 85.2 °F | 1.99 in. |
| November | 50.2 °F | 74.6 °F | 1.21 in. |
| December | 42.1 °F | 67.3 °F | 0.97 in. |
| Annual | 59.1 °F | 84 °F | 20.38 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |