Cedar City, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 2.4 °C (low) to 17.7 °C (high). Annual precipitation averages 308.6 Millimeters. Cedar City is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.4 °C | 5.7 °C | 21.84 mm |
| February | -5.6 °C | 7.7 °C | 27.94 mm |
| March | -2.4 °C | 12.3 °C | 38.35 mm |
| April | 0.4 °C | 15.8 °C | 26.42 mm |
| May | 5 °C | 21.2 °C | 22.86 mm |
| June | 10.3 °C | 27.7 °C | 10.92 mm |
| July | 14.6 °C | 30.8 °C | 24.13 mm |
| August | 13.9 °C | 29.9 °C | 29.21 mm |
| September | 9 °C | 25.6 °C | 23.62 mm |
| October | 2.4 °C | 18.8 °C | 34.29 mm |
| November | -3.5 °C | 11.5 °C | 23.88 mm |
| December | -7.6 °C | 5.5 °C | 25.15 mm |
| Annual | 2.4 °C | 17.7 °C | 308.61 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 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 |