Henrietta, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.5 °F (low) to 76.1 °F (high). Annual precipitation averages 31.5 Inches. Henrietta is located in USDA Plant Hardiness Zone 8a. 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 | 29.3 °F | 54.9 °F | 1.61 in. |
| February | 32.5 °F | 59.0 °F | 1.85 in. |
| March | 41.0 °F | 67.6 °F | 2.51 in. |
| April | 48.7 °F | 75.7 °F | 3.02 in. |
| May | 59.5 °F | 83.2 °F | 4.07 in. |
| June | 67.7 °F | 91.3 °F | 3.82 in. |
| July | 71.5 °F | 96.6 °F | 2.09 in. |
| August | 70.5 °F | 96.7 °F | 2.49 in. |
| September | 62.7 °F | 88.7 °F | 2.7 in. |
| October | 51.1 °F | 78.0 °F | 3.35 in. |
| November | 40.0 °F | 65.7 °F | 2.0 in. |
| December | 31.1 °F | 56.0 °F | 1.95 in. |
| Annual | 50.5 °F | 76.1 °F | 31.46 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |