Bonanza, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 35.1 °F (low) to 62.4 °F (high). Annual precipitation averages 9.1 Inches. Bonanza 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 | 10.2 °F | 30.8 °F | 0.55 in. |
| February | 16.4 °F | 39.1 °F | 0.41 in. |
| March | 27.1 °F | 53.2 °F | 0.65 in. |
| April | 34.4 °F | 62.4 °F | 0.89 in. |
| May | 43.1 °F | 72.8 °F | 1.2 in. |
| June | 51.8 °F | 84.7 °F | 0.6 in. |
| July | 58.9 °F | 91.7 °F | 0.69 in. |
| August | 57.1 °F | 88.7 °F | 0.81 in. |
| September | 48.1 °F | 79.7 °F | 1.26 in. |
| October | 36.4 °F | 64.8 °F | 1.08 in. |
| November | 24.5 °F | 47.7 °F | 0.54 in. |
| December | 13.5 °F | 33.4 °F | 0.44 in. |
| Annual | 35.1 °F | 62.4 °F | 9.12 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 | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |