Henefer, Utah has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.1 °C (low) to 16.3 °C (high). Annual precipitation averages 434.1 Millimeters. 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 | -10.3 °C | 2.1 °C | 41.91 mm |
| February | -8.2 °C | 4.9 °C | 32.77 mm |
| March | -3.6 °C | 10.5 °C | 37.85 mm |
| April | -0.4 °C | 14.8 °C | 45.97 mm |
| May | 3.4 °C | 20.2 °C | 52.32 mm |
| June | 6.8 °C | 26.4 °C | 31.24 mm |
| July | 10.8 °C | 31.4 °C | 18.03 mm |
| August | 10.1 °C | 30.6 °C | 21.08 mm |
| September | 5.2 °C | 25.3 °C | 33.27 mm |
| October | -0.2 °C | 17.8 °C | 39.62 mm |
| November | -4.9 °C | 9.1 °C | 38.86 mm |
| December | -9.4 °C | 2.3 °C | 41.15 mm |
| Annual | -0.1 °C | 16.3 °C | 434.07 mm |
| 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 : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |