Carbonville, Utah has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.7 °C (low) to 17.5 °C (high). Annual precipitation averages 256 Millimeters. Carbonville is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.3 °C | 2.8 °C | 20.57 mm |
| February | -7 °C | 6.1 °C | 20.32 mm |
| March | -2.7 °C | 12.2 °C | 19.3 mm |
| April | 0.6 °C | 16.7 °C | 17.78 mm |
| May | 5.2 °C | 22.2 °C | 18.29 mm |
| June | 10.5 °C | 28.8 °C | 16.76 mm |
| July | 14.3 °C | 32.5 °C | 21.08 mm |
| August | 13.2 °C | 31.1 °C | 28.19 mm |
| September | 9 °C | 26.1 °C | 31.75 mm |
| October | 1.8 °C | 18.3 °C | 27.69 mm |
| November | -4.7 °C | 9.9 °C | 13.21 mm |
| December | -9.6 °C | 3 °C | 21.08 mm |
| Annual | 1.7 °C | 17.5 °C | 256.02 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |