Joseph City, Arizona has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 39 °F (low) to 72.8 °F (high). Annual precipitation averages 7.9 Inches. Joseph City is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.4 °F | 50.4 °F | 0.6 in. |
| February | 24.3 °F | 56.4 °F | 0.46 in. |
| March | 29.8 °F | 64.3 °F | 0.68 in. |
| April | 35.9 °F | 71.9 °F | 0.26 in. |
| May | 44.3 °F | 81.0 °F | 0.3 in. |
| June | 53.1 °F | 91.7 °F | 0.18 in. |
| July | 61.7 °F | 94.6 °F | 1.2 in. |
| August | 60.2 °F | 91.6 °F | 1.34 in. |
| September | 51.9 °F | 85.6 °F | 0.99 in. |
| October | 38.5 °F | 74.7 °F | 0.75 in. |
| November | 27.2 °F | 61.7 °F | 0.51 in. |
| December | 20.4 °F | 50.0 °F | 0.64 in. |
| Annual | 39 °F | 72.8 °F | 7.91 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 | BWk - Cold Desert Climate |