Coleville, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 1 °C (low) to 19.2 °C (high). Annual precipitation averages 271.3 Millimeters. Coleville is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.2 °C | 8.4 °C | 45.97 mm |
| February | -5.1 °C | 9.8 °C | 39.62 mm |
| March | -2.7 °C | 13.4 °C | 35.56 mm |
| April | -0.6 °C | 16.9 °C | 15.49 mm |
| May | 3.4 °C | 21.6 °C | 21.08 mm |
| June | 6.7 °C | 27.4 °C | 12.95 mm |
| July | 10.4 °C | 32.1 °C | 10.16 mm |
| August | 10 °C | 31.8 °C | 8.13 mm |
| September | 5.9 °C | 27.4 °C | 5.84 mm |
| October | 0.9 °C | 20.7 °C | 16.51 mm |
| November | -4 °C | 13.1 °C | 22.86 mm |
| December | -6.4 °C | 8.1 °C | 37.08 mm |
| Annual | 1 °C | 19.2 °C | 271.25 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |