Kernville, California has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 9.1 °C (low) to 24.8 °C (high). Annual precipitation averages 289.3 Millimeters. Kernville 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.7 °C | 15.1 °C | 62.48 mm |
| February | 2.8 °C | 16.3 °C | 63.5 mm |
| March | 4.6 °C | 18.7 °C | 39.62 mm |
| April | 6.9 °C | 21.6 °C | 14.73 mm |
| May | 11.1 °C | 26.5 °C | 6.86 mm |
| June | 15.4 °C | 32.2 °C | 4.06 mm |
| July | 18.8 °C | 36.4 °C | 3.56 mm |
| August | 18 °C | 36.4 °C | 2.79 mm |
| September | 15.2 °C | 33.1 °C | 3.81 mm |
| October | 9.6 °C | 26.5 °C | 12.19 mm |
| November | 4.5 °C | 19.8 °C | 23.62 mm |
| December | 1 °C | 14.5 °C | 52.07 mm |
| Annual | 9.1 °C | 24.8 °C | 289.29 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | BWh - Hot Desert Climate |