Toyah, Texas has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 9.8 °C (low) to 27.1 °C (high). Annual precipitation averages 262.9 Millimeters. Toyah is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.1 °C | 15.9 °C | 12.7 mm |
| February | 0.9 °C | 19.1 °C | 9.91 mm |
| March | 4.6 °C | 23.4 °C | 9.91 mm |
| April | 8.9 °C | 28.3 °C | 9.4 mm |
| May | 14.4 °C | 32.6 °C | 24.89 mm |
| June | 19.3 °C | 36.6 °C | 23.88 mm |
| July | 20.8 °C | 36.3 °C | 41.4 mm |
| August | 20.3 °C | 35.9 °C | 33.53 mm |
| September | 16.5 °C | 32.1 °C | 47.5 mm |
| October | 10.3 °C | 27.6 °C | 25.91 mm |
| November | 3.3 °C | 21 °C | 11.43 mm |
| December | -0.5 °C | 16.2 °C | 12.45 mm |
| Annual | 9.8 °C | 27.1 °C | 262.91 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |