Valley Ranch, California has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 33.3 °F (low) to 64.4 °F (high). Annual precipitation averages 27.7 Inches. Valley Ranch is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.1 °F | 45.0 °F | 4.96 in. |
| February | 24.2 °F | 48.6 °F | 4.58 in. |
| March | 27.9 °F | 54.2 °F | 4.06 in. |
| April | 31.2 °F | 59.3 °F | 1.99 in. |
| May | 37.0 °F | 67.9 °F | 1.44 in. |
| June | 42.7 °F | 78.1 °F | 0.53 in. |
| July | 47.9 °F | 87.2 °F | 0.18 in. |
| August | 45.7 °F | 86.3 °F | 0.21 in. |
| September | 40.1 °F | 80.7 °F | 0.49 in. |
| October | 32.5 °F | 68.2 °F | 1.4 in. |
| November | 26.3 °F | 53.8 °F | 2.62 in. |
| December | 22.3 °F | 43.8 °F | 5.23 in. |
| Annual | 33.3 °F | 64.4 °F | 27.69 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |