Huntsville, Utah has a Humid Continental Climate - Dry Warm Summer climate (Köppen classification: Dsa). Average annual temperatures range from 35.5 °F (low) to 60.7 °F (high). Annual precipitation averages 21.8 Inches. Huntsville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.8 °F | 35.2 °F | 2.66 in. |
| February | 20.3 °F | 40.3 °F | 2.04 in. |
| March | 28.2 °F | 50.8 °F | 2.13 in. |
| April | 34.1 °F | 57.9 °F | 2.33 in. |
| May | 41.9 °F | 67.8 °F | 2.43 in. |
| June | 48.7 °F | 78.7 °F | 1.31 in. |
| July | 56.5 °F | 88.2 °F | 0.6 in. |
| August | 55.2 °F | 86.9 °F | 0.81 in. |
| September | 45.9 °F | 76.6 °F | 1.41 in. |
| October | 35.2 °F | 62.4 °F | 1.92 in. |
| November | 25.9 °F | 47.9 °F | 1.84 in. |
| December | 17.7 °F | 35.9 °F | 2.35 in. |
| Annual | 35.5 °F | 60.7 °F | 21.83 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsa - Humid Continental Climate - Dry Warm Summer |