Clarkston, Utah has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.7 °C (low) to 15 °C (high). Annual precipitation averages 439.7 Millimeters. Clarkston is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.5 °C | -0.2 °C | 47.5 mm |
| February | -7.6 °C | 2.4 °C | 38.1 mm |
| March | -2.7 °C | 8.9 °C | 41.66 mm |
| April | 0.2 °C | 13.9 °C | 47.75 mm |
| May | 4.2 °C | 19.1 °C | 57.4 mm |
| June | 7.6 °C | 25.2 °C | 26.92 mm |
| July | 11.7 °C | 30.9 °C | 14.48 mm |
| August | 11.1 °C | 30.7 °C | 18.03 mm |
| September | 6.4 °C | 24.7 °C | 33.02 mm |
| October | 0.8 °C | 16.2 °C | 42.67 mm |
| November | -4.6 °C | 7.6 °C | 33.27 mm |
| December | -9.3 °C | 0.7 °C | 38.86 mm |
| Annual | 0.7 °C | 15 °C | 439.66 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |