Amarillo, Texas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 43 °F (low) to 71.4 °F (high). Annual precipitation averages 19.2 Inches. Amarillo is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.0 °F | 51.0 °F | 0.61 in. |
| February | 25.5 °F | 54.7 °F | 0.46 in. |
| March | 32.7 °F | 63.3 °F | 1.19 in. |
| April | 40.5 °F | 71.1 °F | 1.38 in. |
| May | 50.8 °F | 79.6 °F | 2.16 in. |
| June | 61.0 °F | 88.8 °F | 2.99 in. |
| July | 64.7 °F | 91.8 °F | 2.62 in. |
| August | 63.5 °F | 90.1 °F | 2.77 in. |
| September | 55.7 °F | 83.1 °F | 1.68 in. |
| October | 43.6 °F | 72.4 °F | 1.92 in. |
| November | 31.4 °F | 60.3 °F | 0.72 in. |
| December | 23.7 °F | 50.9 °F | 0.74 in. |
| Annual | 43 °F | 71.4 °F | 19.24 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |