Manti, Utah has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.8 °F (low) to 62.4 °F (high). Annual precipitation averages 12.4 Inches. Manti is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.1 °F | 37.0 °F | 0.95 in. |
| February | 19.5 °F | 42.4 °F | 0.91 in. |
| March | 26.2 °F | 52.8 °F | 1.19 in. |
| April | 31.2 °F | 59.8 °F | 1.29 in. |
| May | 38.6 °F | 69.3 °F | 1.39 in. |
| June | 46.5 °F | 81.4 °F | 0.81 in. |
| July | 53.5 °F | 88.7 °F | 0.64 in. |
| August | 51.9 °F | 86.8 °F | 0.83 in. |
| September | 43.1 °F | 78.2 °F | 1.07 in. |
| October | 32.3 °F | 64.9 °F | 1.21 in. |
| November | 22.6 °F | 50.3 °F | 0.95 in. |
| December | 14.3 °F | 37.1 °F | 1.12 in. |
| Annual | 32.8 °F | 62.4 °F | 12.36 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |