Fayette, Utah has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1 °C (low) to 18.7 °C (high). Annual precipitation averages 231.7 Millimeters. Fayette is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.2 °C | 4.1 °C | 20.83 mm |
| February | -6.4 °C | 7.2 °C | 16 mm |
| March | -2.8 °C | 13 °C | 23.37 mm |
| April | -0.3 °C | 17.3 °C | 28.45 mm |
| May | 4 °C | 23 °C | 24.89 mm |
| June | 8.7 °C | 29.8 °C | 12.7 mm |
| July | 13 °C | 33.9 °C | 10.67 mm |
| August | 12.2 °C | 32.8 °C | 13.97 mm |
| September | 6.8 °C | 27.8 °C | 19.56 mm |
| October | 0.6 °C | 20 °C | 23.62 mm |
| November | -4.9 °C | 11.3 °C | 17.78 mm |
| December | -9.2 °C | 4.2 °C | 19.81 mm |
| Annual | 1 °C | 18.7 °C | 231.65 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |