White Mountain Lake, Arizona has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 2.8 °C (low) to 20.2 °C (high). Annual precipitation averages 338.8 Millimeters. White Mountain Lake 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 | -6.2 °C | 9.1 °C | 24.64 mm |
| February | -4.6 °C | 11.5 °C | 16.26 mm |
| March | -2.1 °C | 15.2 °C | 23.62 mm |
| April | 0.8 °C | 19.3 °C | 12.45 mm |
| May | 4.9 °C | 24.2 °C | 14.48 mm |
| June | 9.6 °C | 30.1 °C | 10.16 mm |
| July | 14 °C | 31.2 °C | 52.83 mm |
| August | 13.4 °C | 29.7 °C | 64.77 mm |
| September | 9.6 °C | 26.9 °C | 38.61 mm |
| October | 2.9 °C | 21.3 °C | 30.73 mm |
| November | -2.5 °C | 14.7 °C | 24.64 mm |
| December | -6.3 °C | 9 °C | 25.65 mm |
| Annual | 2.8 °C | 20.2 °C | 338.84 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 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |