Camptonville, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 7.6 °C (low) to 20.9 °C (high). Annual precipitation averages 1595.4 Millimeters. 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 | 2.1 °C | 12.1 °C | 290.07 mm |
| February | 2.2 °C | 12.8 °C | 253.75 mm |
| March | 3.3 °C | 15 °C | 226.06 mm |
| April | 4.9 °C | 17.7 °C | 129.29 mm |
| May | 8.6 °C | 22.6 °C | 80.52 mm |
| June | 12.1 °C | 27.4 °C | 25.15 mm |
| July | 15.6 °C | 31.8 °C | 1.02 mm |
| August | 15.4 °C | 32.2 °C | 5.59 mm |
| September | 12.6 °C | 29.4 °C | 14.99 mm |
| October | 8.4 °C | 23.2 °C | 78.23 mm |
| November | 4.3 °C | 15.5 °C | 161.04 mm |
| December | 1.8 °C | 11.2 °C | 329.69 mm |
| Annual | 7.6 °C | 20.9 °C | 1595.4 mm |
| 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 : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |