Joseph, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.9 °C (low) to 18.5 °C (high). Annual precipitation averages 214.9 Millimeters. Joseph 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.8 °C | 5.2 °C | 13.46 mm |
| February | -6.2 °C | 8.3 °C | 14.73 mm |
| March | -3.1 °C | 13.3 °C | 18.03 mm |
| April | -0.3 °C | 17.1 °C | 17.02 mm |
| May | 3.9 °C | 22.4 °C | 21.84 mm |
| June | 8.4 °C | 28.8 °C | 11.18 mm |
| July | 12.5 °C | 32.7 °C | 17.02 mm |
| August | 11.6 °C | 31.4 °C | 24.13 mm |
| September | 6.4 °C | 26.9 °C | 18.29 mm |
| October | 0.3 °C | 19.6 °C | 29.72 mm |
| November | -4.9 °C | 11.6 °C | 13.97 mm |
| December | -9 °C | 5.2 °C | 15.49 mm |
| Annual | 0.9 °C | 18.5 °C | 214.88 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |