Redcrest, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 7 °C (low) to 17.8 °C (high). Annual precipitation averages 1343.2 Millimeters. Redcrest is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 11 - Jan. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.8 °C | 11.9 °C | 252.22 mm |
| February | 4.1 °C | 13.2 °C | 207.01 mm |
| March | 4.8 °C | 14.5 °C | 190.25 mm |
| April | 5.7 °C | 15.9 °C | 108.2 mm |
| May | 7.9 °C | 19.1 °C | 51.82 mm |
| June | 9.7 °C | 21.9 °C | 19.05 mm |
| July | 11.3 °C | 24.7 °C | 2.54 mm |
| August | 11.2 °C | 24.6 °C | 3.3 mm |
| September | 9.6 °C | 23.3 °C | 12.19 mm |
| October | 7.2 °C | 18.4 °C | 71.37 mm |
| November | 5.2 °C | 14.6 °C | 147.07 mm |
| December | 3.5 °C | 11.1 °C | 278.13 mm |
| Annual | 7 °C | 17.8 °C | 1343.15 mm |
| Average First Frost Date | Jan. 11 - Jan. 20 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |