Coarsegold, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 8.3 °C (low) to 23.2 °C (high). Annual precipitation averages 707.9 Millimeters. Coarsegold is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.9 °C | 13.8 °C | 144.78 mm |
| February | 2.4 °C | 14.6 °C | 130.3 mm |
| March | 4 °C | 16.9 °C | 113.54 mm |
| April | 5.6 °C | 19.7 °C | 56.9 mm |
| May | 9.1 °C | 25.1 °C | 29.21 mm |
| June | 13.2 °C | 30.8 °C | 10.41 mm |
| July | 17.2 °C | 34.9 °C | 4.83 mm |
| August | 16.9 °C | 34.6 °C | 1.78 mm |
| September | 14.1 °C | 31.2 °C | 5.59 mm |
| October | 9.3 °C | 24.7 °C | 29.97 mm |
| November | 4.7 °C | 18.2 °C | 60.45 mm |
| December | 1.7 °C | 13.4 °C | 120.14 mm |
| Annual | 8.3 °C | 23.2 °C | 707.9 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 75-100 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 |