May, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.6 °F (low) to 76.4 °F (high). Annual precipitation averages 30.1 Inches. May is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.2 °F | 57.7 °F | 1.38 in. |
| February | 36.0 °F | 61.6 °F | 1.92 in. |
| March | 43.5 °F | 68.6 °F | 2.46 in. |
| April | 50.0 °F | 76.5 °F | 2.25 in. |
| May | 60.1 °F | 83.5 °F | 4.22 in. |
| June | 67.8 °F | 90.1 °F | 4.06 in. |
| July | 70.7 °F | 94.2 °F | 2.21 in. |
| August | 70.2 °F | 94.2 °F | 2.32 in. |
| September | 63.0 °F | 87.2 °F | 2.75 in. |
| October | 52.1 °F | 78.1 °F | 2.98 in. |
| November | 41.2 °F | 66.7 °F | 2.05 in. |
| December | 32.9 °F | 58.4 °F | 1.5 in. |
| Annual | 51.6 °F | 76.4 °F | 30.1 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |