Camptonville, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 45.7 °F (low) to 69.6 °F (high). Annual precipitation averages 62.8 Inches. Camptonville is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.7 °F | 53.7 °F | 11.42 in. |
| February | 36.0 °F | 55.1 °F | 9.99 in. |
| March | 38.0 °F | 59.0 °F | 8.9 in. |
| April | 40.8 °F | 63.9 °F | 5.09 in. |
| May | 47.4 °F | 72.6 °F | 3.17 in. |
| June | 53.7 °F | 81.4 °F | 0.99 in. |
| July | 60.0 °F | 89.2 °F | 0.04 in. |
| August | 59.8 °F | 90.0 °F | 0.22 in. |
| September | 54.6 °F | 84.9 °F | 0.59 in. |
| October | 47.2 °F | 73.7 °F | 3.08 in. |
| November | 39.8 °F | 59.9 °F | 6.34 in. |
| December | 35.2 °F | 52.1 °F | 12.98 in. |
| Annual | 45.7 °F | 69.6 °F | 62.81 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |