Tremonton, Utah has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.8 °C (low) to 16.3 °C (high). Annual precipitation averages 405.6 Millimeters. Tremonton 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 | -8.2 °C | 1.2 °C | 48.26 mm |
| February | -6.1 °C | 4.1 °C | 36.58 mm |
| March | -1.2 °C | 10.7 °C | 37.34 mm |
| April | 2 °C | 15.2 °C | 42.16 mm |
| May | 6.6 °C | 20.6 °C | 54.86 mm |
| June | 10.7 °C | 26.7 °C | 25.91 mm |
| July | 14.9 °C | 32.2 °C | 13.21 mm |
| August | 14.1 °C | 31.3 °C | 15.49 mm |
| September | 8.8 °C | 25.4 °C | 29.72 mm |
| October | 2.4 °C | 17.3 °C | 36.83 mm |
| November | -2.8 °C | 8.8 °C | 27.18 mm |
| December | -7.3 °C | 1.9 °C | 38.1 mm |
| Annual | 2.8 °C | 16.3 °C | 405.64 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |