Greasewood, Arizona has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 2.6 °C (low) to 20.3 °C (high). Annual precipitation averages 229.6 Millimeters. Greasewood is located in USDA Plant Hardiness Zone 6b. 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 | -7.3 °C | 7.9 °C | 18.8 mm |
| February | -5.2 °C | 10.7 °C | 17.02 mm |
| March | -2.7 °C | 15.2 °C | 18.29 mm |
| April | 0.7 °C | 19.4 °C | 12.7 mm |
| May | 5.2 °C | 24.6 °C | 9.91 mm |
| June | 10.1 °C | 31 °C | 3.81 mm |
| July | 14.6 °C | 32.5 °C | 31.24 mm |
| August | 14.1 °C | 31 °C | 33.27 mm |
| September | 9.7 °C | 27.6 °C | 23.62 mm |
| October | 2.8 °C | 21.3 °C | 21.59 mm |
| November | -3.2 °C | 13.9 °C | 15.75 mm |
| December | -7.4 °C | 7.9 °C | 23.62 mm |
| Annual | 2.6 °C | 20.3 °C | 229.62 mm |
| 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 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |