Sonora, Texas has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 51.3 °F (low) to 78.3 °F (high). Annual precipitation averages 19.7 Inches. Sonora 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 | 30.8 °F | 60.1 °F | 0.92 in. |
| February | 34.8 °F | 64.2 °F | 1.0 in. |
| March | 43.4 °F | 71.9 °F | 1.49 in. |
| April | 50.2 °F | 79.8 °F | 1.57 in. |
| May | 60.6 °F | 86.2 °F | 2.49 in. |
| June | 68.5 °F | 92.2 °F | 2.31 in. |
| July | 70.0 °F | 94.2 °F | 1.71 in. |
| August | 69.6 °F | 94.3 °F | 2.31 in. |
| September | 63.0 °F | 88.0 °F | 2.12 in. |
| October | 52.4 °F | 79.5 °F | 1.83 in. |
| November | 40.6 °F | 68.3 °F | 1.28 in. |
| December | 32.0 °F | 61.0 °F | 0.7 in. |
| Annual | 51.3 °F | 78.3 °F | 19.73 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 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |