Creston, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 5.8 °C (low) to 24.9 °C (high). Annual precipitation averages 547.1 Millimeters. Creston is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.4 °C | 16.4 °C | 124.21 mm |
| February | 2.2 °C | 17.2 °C | 118.87 mm |
| March | 3.4 °C | 19.3 °C | 95.25 mm |
| April | 4.2 °C | 22.9 °C | 33.53 mm |
| May | 6.5 °C | 27.1 °C | 12.19 mm |
| June | 9.1 °C | 31.7 °C | 2.03 mm |
| July | 11.7 °C | 34.1 °C | 0.76 mm |
| August | 11.2 °C | 34.6 °C | 0.25 mm |
| September | 9.5 °C | 32.3 °C | 2.29 mm |
| October | 6.2 °C | 26.8 °C | 23.37 mm |
| November | 2.9 °C | 20.6 °C | 41.91 mm |
| December | 0.7 °C | 16.1 °C | 92.46 mm |
| Annual | 5.8 °C | 24.9 °C | 547.12 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |