Nevada City, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 7.8 °C (low) to 20.9 °C (high). Annual precipitation averages 1411 Millimeters. Nevada City is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.1 °C | 12.1 °C | 244.86 mm |
| February | 2.3 °C | 13 °C | 236.47 mm |
| March | 3.4 °C | 15.2 °C | 220.73 mm |
| April | 5 °C | 17.7 °C | 114.3 mm |
| May | 8.7 °C | 22.3 °C | 69.85 mm |
| June | 12.4 °C | 27.6 °C | 20.32 mm |
| July | 15.9 °C | 32.1 °C | 0.51 mm |
| August | 15.6 °C | 31.9 °C | 2.79 mm |
| September | 12.8 °C | 29.2 °C | 12.95 mm |
| October | 8.6 °C | 23.2 °C | 67.82 mm |
| November | 4.4 °C | 15.6 °C | 143.76 mm |
| December | 1.8 °C | 11.2 °C | 276.61 mm |
| Annual | 7.8 °C | 20.9 °C | 1410.97 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |