Squirrel Mountain Valley, California has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 8.5 °C (low) to 24.1 °C (high). Annual precipitation averages 353.1 Millimeters. Squirrel Mountain Valley is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.6 °C | 14.6 °C | 70.87 mm |
| February | 2.2 °C | 15.6 °C | 78.23 mm |
| March | 3.9 °C | 18.1 °C | 58.42 mm |
| April | 6.2 °C | 20.8 °C | 21.59 mm |
| May | 10.3 °C | 25.8 °C | 11.18 mm |
| June | 14.6 °C | 31.3 °C | 4.57 mm |
| July | 17.7 °C | 36.3 °C | 4.83 mm |
| August | 16.9 °C | 36.1 °C | 4.57 mm |
| September | 14.3 °C | 32.1 °C | 2.79 mm |
| October | 8.8 °C | 25.6 °C | 11.94 mm |
| November | 3.9 °C | 19 °C | 36.07 mm |
| December | 1.2 °C | 14 °C | 48.01 mm |
| Annual | 8.5 °C | 24.1 °C | 353.07 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BWh - Hot Desert Climate |