Weaverville, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 4.4 °C (low) to 20.8 °C (high). Annual precipitation averages 970.5 Millimeters. Weaverville is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.2 °C | 8.8 °C | 176.02 mm |
| February | -0.1 °C | 11.9 °C | 146.81 mm |
| March | 0.9 °C | 15.1 °C | 127.51 mm |
| April | 2.4 °C | 18.8 °C | 66.8 mm |
| May | 5.7 °C | 23.9 °C | 43.43 mm |
| June | 8.3 °C | 28.9 °C | 24.89 mm |
| July | 11.8 °C | 34.2 °C | 6.1 mm |
| August | 10.9 °C | 33.9 °C | 3.56 mm |
| September | 7.7 °C | 30.5 °C | 9.14 mm |
| October | 3.7 °C | 22.6 °C | 47.75 mm |
| November | 1.7 °C | 13.2 °C | 113.03 mm |
| December | -0.3 °C | 7.9 °C | 205.49 mm |
| Annual | 4.4 °C | 20.8 °C | 970.53 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |