Valle Vista, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 49.2 °F (low) to 80.2 °F (high). Annual precipitation averages 12.8 Inches. 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 | 40.1 °F | 66.5 °F | 2.51 in. |
| February | 40.5 °F | 66.3 °F | 3.17 in. |
| March | 42.8 °F | 70.3 °F | 1.9 in. |
| April | 45.4 °F | 75.4 °F | 0.79 in. |
| May | 50.5 °F | 81.8 °F | 0.44 in. |
| June | 54.4 °F | 90.1 °F | 0.05 in. |
| July | 60.6 °F | 97.3 °F | 0.16 in. |
| August | 61.5 °F | 98.2 °F | 0.2 in. |
| September | 58.6 °F | 93.7 °F | 0.31 in. |
| October | 51.5 °F | 83.8 °F | 0.58 in. |
| November | 44.9 °F | 73.8 °F | 0.82 in. |
| December | 39.2 °F | 65.7 °F | 1.9 in. |
| Annual | 49.2 °F | 80.2 °F | 12.83 in. |
| 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 : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |