Lamesa, Texas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 47.4 °F (low) to 75.5 °F (high). Annual precipitation averages 17.5 Inches. Lamesa 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 | 27.6 °F | 55.7 °F | 0.64 in. |
| February | 30.6 °F | 60.3 °F | 0.75 in. |
| March | 37.6 °F | 68.6 °F | 0.99 in. |
| April | 45.5 °F | 76.8 °F | 0.94 in. |
| May | 55.9 °F | 84.6 °F | 2.35 in. |
| June | 64.6 °F | 91.6 °F | 2.51 in. |
| July | 67.3 °F | 93.4 °F | 1.67 in. |
| August | 66.3 °F | 92.3 °F | 1.58 in. |
| September | 59.5 °F | 85.0 °F | 2.9 in. |
| October | 48.5 °F | 76.9 °F | 1.44 in. |
| November | 36.2 °F | 64.7 °F | 0.91 in. |
| December | 28.8 °F | 56.4 °F | 0.84 in. |
| Annual | 47.4 °F | 75.5 °F | 17.52 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 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |