Myra, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.8 °F (low) to 74.5 °F (high). Annual precipitation averages 38.3 Inches. Myra 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 30.9 °F | 54.1 °F | 1.83 in. |
| February | 34.4 °F | 58.1 °F | 2.51 in. |
| March | 42.5 °F | 66.2 °F | 3.27 in. |
| April | 50.1 °F | 73.8 °F | 3.55 in. |
| May | 60.1 °F | 80.7 °F | 5.0 in. |
| June | 68.7 °F | 89.0 °F | 4.14 in. |
| July | 72.3 °F | 94.0 °F | 2.64 in. |
| August | 71.7 °F | 94.6 °F | 2.37 in. |
| September | 64.0 °F | 87.0 °F | 3.53 in. |
| October | 52.2 °F | 76.4 °F | 4.19 in. |
| November | 41.7 °F | 64.9 °F | 2.66 in. |
| December | 33.1 °F | 55.6 °F | 2.58 in. |
| Annual | 51.8 °F | 74.5 °F | 38.27 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| 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 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |