Mapleton, Utah has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.4 °C (low) to 17.8 °C (high). Annual precipitation averages 453.4 Millimeters. Mapleton is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.9 °C | 3.3 °C | 46.48 mm |
| February | -4.6 °C | 6.7 °C | 42.16 mm |
| March | -0.7 °C | 12.6 °C | 42.93 mm |
| April | 2.2 °C | 16.7 °C | 53.85 mm |
| May | 6.4 °C | 22.1 °C | 51.31 mm |
| June | 10.5 °C | 28.4 °C | 22.61 mm |
| July | 15 °C | 33.1 °C | 14.48 mm |
| August | 14.5 °C | 32 °C | 18.8 mm |
| September | 9.3 °C | 26.6 °C | 33.02 mm |
| October | 3.2 °C | 18.6 °C | 43.94 mm |
| November | -1.9 °C | 10.3 °C | 39.12 mm |
| December | -6.2 °C | 3.7 °C | 44.7 mm |
| Annual | 3.4 °C | 17.8 °C | 453.4 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |