Lehi, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 39.6 °F (low) to 64.4 °F (high). Annual precipitation averages 14 Inches. Lehi 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.9 °F | 38.6 °F | 1.35 in. |
| February | 24.9 °F | 44.5 °F | 1.18 in. |
| March | 32.3 °F | 54.9 °F | 1.28 in. |
| April | 37.2 °F | 62.3 °F | 1.62 in. |
| May | 45.1 °F | 72.0 °F | 1.7 in. |
| June | 52.6 °F | 83.9 °F | 0.82 in. |
| July | 61.0 °F | 91.9 °F | 0.5 in. |
| August | 59.9 °F | 90.1 °F | 0.77 in. |
| September | 50.5 °F | 80.0 °F | 1.03 in. |
| October | 39.1 °F | 65.6 °F | 1.33 in. |
| November | 29.8 °F | 50.4 °F | 1.08 in. |
| December | 22.2 °F | 38.8 °F | 1.3 in. |
| Annual | 39.6 °F | 64.4 °F | 13.96 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 6b : -5°F to 0°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |