Farmington, Utah has a Humid Continental Climate - Dry Warm Summer climate (Köppen classification: Dsa). Average annual temperatures range from 41 °F (low) to 63.9 °F (high). Annual precipitation averages 24.8 Inches. Farmington is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.0 °F | 38.3 °F | 2.66 in. |
| February | 25.9 °F | 43.5 °F | 2.23 in. |
| March | 33.2 °F | 53.9 °F | 2.69 in. |
| April | 38.6 °F | 61.0 °F | 3.1 in. |
| May | 46.8 °F | 71.1 °F | 3.2 in. |
| June | 54.6 °F | 82.5 °F | 1.38 in. |
| July | 63.6 °F | 92.1 °F | 0.58 in. |
| August | 61.9 °F | 90.4 °F | 0.89 in. |
| September | 52.4 °F | 80.0 °F | 1.51 in. |
| October | 40.5 °F | 65.4 °F | 2.06 in. |
| November | 30.2 °F | 50.1 °F | 2.09 in. |
| December | 22.6 °F | 38.6 °F | 2.39 in. |
| Annual | 41 °F | 63.9 °F | 24.78 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsa - Humid Continental Climate - Dry Warm Summer |