Henefer, Utah has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.9 °F (low) to 61.3 °F (high). Annual precipitation averages 17.1 Inches. Henefer is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.5 °F | 35.8 °F | 1.65 in. |
| February | 17.3 °F | 40.8 °F | 1.29 in. |
| March | 25.5 °F | 50.9 °F | 1.49 in. |
| April | 31.2 °F | 58.7 °F | 1.81 in. |
| May | 38.2 °F | 68.4 °F | 2.06 in. |
| June | 44.2 °F | 79.6 °F | 1.23 in. |
| July | 51.4 °F | 88.6 °F | 0.71 in. |
| August | 50.1 °F | 87.1 °F | 0.83 in. |
| September | 41.3 °F | 77.6 °F | 1.31 in. |
| October | 31.6 °F | 64.0 °F | 1.56 in. |
| November | 23.1 °F | 48.4 °F | 1.53 in. |
| December | 15.0 °F | 36.2 °F | 1.62 in. |
| Annual | 31.9 °F | 61.3 °F | 17.09 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |