Valle Vista, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 9.5 °C (low) to 26.8 °C (high). Annual precipitation averages 325.9 Millimeters. Valle Vista is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.5 °C | 19.2 °C | 63.75 mm |
| February | 4.7 °C | 19.1 °C | 80.52 mm |
| March | 6 °C | 21.3 °C | 48.26 mm |
| April | 7.4 °C | 24.1 °C | 20.07 mm |
| May | 10.3 °C | 27.7 °C | 11.18 mm |
| June | 12.4 °C | 32.3 °C | 1.27 mm |
| July | 15.9 °C | 36.3 °C | 4.06 mm |
| August | 16.4 °C | 36.8 °C | 5.08 mm |
| September | 14.8 °C | 34.3 °C | 7.87 mm |
| October | 10.8 °C | 28.8 °C | 14.73 mm |
| November | 7.2 °C | 23.2 °C | 20.83 mm |
| December | 4 °C | 18.7 °C | 48.26 mm |
| Annual | 9.5 °C | 26.8 °C | 325.88 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |