Oak City, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 2 °C (low) to 18.1 °C (high). Annual precipitation averages 352.5 Millimeters. Oak City is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.6 °C | 3.7 °C | 32.26 mm |
| February | -6 °C | 6.8 °C | 33.02 mm |
| March | -2.3 °C | 12.6 °C | 40.39 mm |
| April | 0.4 °C | 16.6 °C | 44.45 mm |
| May | 4.9 °C | 22.3 °C | 42.42 mm |
| June | 9.7 °C | 28.9 °C | 17.27 mm |
| July | 14.5 °C | 33.6 °C | 14.73 mm |
| August | 13.8 °C | 32.3 °C | 12.95 mm |
| September | 8.3 °C | 26.8 °C | 23.11 mm |
| October | 1.6 °C | 18.9 °C | 34.54 mm |
| November | -3.9 °C | 10.7 °C | 26.92 mm |
| December | -8.6 °C | 3.8 °C | 30.48 mm |
| Annual | 2 °C | 18.1 °C | 352.54 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |