Coalville, Utah has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 31.1 °F (low) to 61.2 °F (high). Annual precipitation averages 15.5 Inches. Coalville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.0 °F | 35.9 °F | 1.31 in. |
| February | 16.8 °F | 40.7 °F | 1.02 in. |
| March | 24.9 °F | 50.8 °F | 1.26 in. |
| April | 30.4 °F | 58.6 °F | 1.57 in. |
| May | 37.2 °F | 68.2 °F | 1.85 in. |
| June | 43.2 °F | 79.4 °F | 1.23 in. |
| July | 50.3 °F | 88.3 °F | 0.94 in. |
| August | 49.0 °F | 86.6 °F | 0.85 in. |
| September | 40.4 °F | 77.5 °F | 1.27 in. |
| October | 30.8 °F | 64.2 °F | 1.44 in. |
| November | 22.3 °F | 48.2 °F | 1.38 in. |
| December | 14.5 °F | 36.2 °F | 1.38 in. |
| Annual | 31.1 °F | 61.2 °F | 15.5 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |