Mount Pleasant, Utah has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.9 °C (low) to 16.2 °C (high). Annual precipitation averages 341.9 Millimeters. Mount Pleasant is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.3 °C | 2.3 °C | 31.5 mm |
| February | -8.7 °C | 5 °C | 30.99 mm |
| March | -4.7 °C | 10.4 °C | 28.7 mm |
| April | -1.8 °C | 14.5 °C | 33.78 mm |
| May | 2.4 °C | 20.1 °C | 35.81 mm |
| June | 6.5 °C | 26.7 °C | 24.89 mm |
| July | 10.7 °C | 30.9 °C | 17.78 mm |
| August | 9.7 °C | 29.8 °C | 21.84 mm |
| September | 4.8 °C | 25.2 °C | 29.46 mm |
| October | -0.9 °C | 17.7 °C | 30.23 mm |
| November | -6.3 °C | 9.4 °C | 26.16 mm |
| December | -11.1 °C | 2.4 °C | 30.73 mm |
| Annual | -0.9 °C | 16.2 °C | 341.87 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°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 |