Milford, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 1.5 °C (low) to 19.1 °C (high). Annual precipitation averages 271.5 Millimeters. Milford is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.6 °C | 4.6 °C | 21.84 mm |
| February | -6.3 °C | 7.7 °C | 28.96 mm |
| March | -2.8 °C | 13.8 °C | 26.92 mm |
| April | -0.2 °C | 17.6 °C | 24.13 mm |
| May | 4.4 °C | 23.3 °C | 30.23 mm |
| June | 9.4 °C | 30.2 °C | 10.16 mm |
| July | 14.2 °C | 34.1 °C | 14.22 mm |
| August | 13.5 °C | 32.8 °C | 14.73 mm |
| September | 7.7 °C | 27.8 °C | 19.3 mm |
| October | 0.9 °C | 20 °C | 35.31 mm |
| November | -4.6 °C | 11.9 °C | 15.49 mm |
| December | -9.3 °C | 4.8 °C | 30.23 mm |
| Annual | 1.5 °C | 19.1 °C | 271.52 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |