Good Hope, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 49.4 °F (low) to 79.4 °F (high). Annual precipitation averages 11.2 Inches. Good Hope 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 | 40.2 °F | 66.1 °F | 2.63 in. |
| February | 40.5 °F | 66.4 °F | 3.12 in. |
| March | 43.3 °F | 70.1 °F | 1.42 in. |
| April | 46.0 °F | 74.9 °F | 0.72 in. |
| May | 51.5 °F | 80.7 °F | 0.26 in. |
| June | 55.3 °F | 88.3 °F | 0.05 in. |
| July | 61.2 °F | 95.3 °F | 0.04 in. |
| August | 61.9 °F | 96.6 °F | 0.08 in. |
| September | 58.6 °F | 92.4 °F | 0.15 in. |
| October | 51.6 °F | 82.7 °F | 0.36 in. |
| November | 44.2 °F | 73.7 °F | 0.71 in. |
| December | 38.8 °F | 65.7 °F | 1.62 in. |
| Annual | 49.4 °F | 79.4 °F | 11.16 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 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 | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |