Derby Acres, California has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 51.3 °F (low) to 77.1 °F (high). Annual precipitation averages 7.1 Inches. Derby Acres is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.2 °F | 58.2 °F | 1.32 in. |
| February | 41.9 °F | 61.7 °F | 1.53 in. |
| March | 44.8 °F | 66.7 °F | 1.29 in. |
| April | 47.4 °F | 74.7 °F | 0.51 in. |
| May | 53.4 °F | 83.0 °F | 0.34 in. |
| June | 59.8 °F | 91.5 °F | 0.07 in. |
| July | 66.4 °F | 97.7 °F | 0.02 in. |
| August | 65.4 °F | 96.5 °F | 0.02 in. |
| September | 60.8 °F | 91.1 °F | 0.05 in. |
| October | 52.8 °F | 79.3 °F | 0.29 in. |
| November | 44.4 °F | 66.4 °F | 0.55 in. |
| December | 39.0 °F | 58.0 °F | 1.08 in. |
| Annual | 51.3 °F | 77.1 °F | 7.07 in. |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BWk - Cold Desert Climate |