Avalon, California has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 55.6 °F (low) to 70.7 °F (high). Annual precipitation averages 12.6 Inches. Avalon is located in USDA Plant Hardiness Zone 10b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 48.8 °F | 65.5 °F | 2.81 in. |
| February | 50.1 °F | 64.4 °F | 3.3 in. |
| March | 51.5 °F | 65.7 °F | 1.82 in. |
| April | 52.8 °F | 68.7 °F | 0.65 in. |
| May | 56.4 °F | 70.6 °F | 0.26 in. |
| June | 58.9 °F | 72.8 °F | 0.07 in. |
| July | 62.1 °F | 75.9 °F | 0.03 in. |
| August | 63.3 °F | 78.0 °F | 0.02 in. |
| September | 62.5 °F | 77.1 °F | 0.1 in. |
| October | 58.5 °F | 74.8 °F | 0.42 in. |
| November | 53.3 °F | 69.9 °F | 0.74 in. |
| December | 49.3 °F | 65.0 °F | 2.34 in. |
| Annual | 55.6 °F | 70.7 °F | 12.56 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10b : 35°F to 30°F |
| Plant Hardiness Zone - 2012 | Zone 10b : 35°F to 30°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BWk - Cold Desert Climate |