Byers, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.7 °F (low) to 75.4 °F (high). Annual precipitation averages 31.6 Inches. Byers 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 | 29.3 °F | 53.9 °F | 1.4 in. |
| February | 32.6 °F | 57.9 °F | 1.7 in. |
| March | 41.1 °F | 66.7 °F | 2.47 in. |
| April | 48.9 °F | 74.8 °F | 2.95 in. |
| May | 59.5 °F | 82.7 °F | 4.23 in. |
| June | 68.3 °F | 91.0 °F | 3.65 in. |
| July | 72.0 °F | 96.2 °F | 2.35 in. |
| August | 71.1 °F | 96.2 °F | 2.52 in. |
| September | 63.4 °F | 88.0 °F | 3.16 in. |
| October | 51.3 °F | 77.1 °F | 3.26 in. |
| November | 40.1 °F | 65.0 °F | 2.11 in. |
| December | 31.0 °F | 55.0 °F | 1.82 in. |
| Annual | 50.7 °F | 75.4 °F | 31.62 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |