Vail, Arizona has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 51.7 °F (low) to 81.9 °F (high). Annual precipitation averages 14.2 Inches. Vail is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.7 °F | 64.9 °F | 1.04 in. |
| February | 38.1 °F | 67.2 °F | 1.51 in. |
| March | 42.9 °F | 73.6 °F | 1.1 in. |
| April | 47.7 °F | 80.6 °F | 0.45 in. |
| May | 55.1 °F | 89.3 °F | 0.21 in. |
| June | 65.3 °F | 98.7 °F | 0.38 in. |
| July | 70.6 °F | 97.7 °F | 2.59 in. |
| August | 69.3 °F | 95.7 °F | 2.63 in. |
| September | 64.0 °F | 92.5 °F | 1.69 in. |
| October | 53.0 °F | 84.4 °F | 0.72 in. |
| November | 42.6 °F | 73.7 °F | 0.64 in. |
| December | 35.6 °F | 64.1 °F | 1.24 in. |
| Annual | 51.7 °F | 81.9 °F | 14.2 in. |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |