Creston, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 42.4 °F (low) to 76.9 °F (high). Annual precipitation averages 21.5 Inches. 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 | 34.5 °F | 61.5 °F | 4.89 in. |
| February | 35.9 °F | 63.0 °F | 4.68 in. |
| March | 38.2 °F | 66.8 °F | 3.75 in. |
| April | 39.6 °F | 73.2 °F | 1.32 in. |
| May | 43.7 °F | 80.7 °F | 0.48 in. |
| June | 48.4 °F | 89.0 °F | 0.08 in. |
| July | 53.0 °F | 93.4 °F | 0.03 in. |
| August | 52.2 °F | 94.3 °F | 0.01 in. |
| September | 49.1 °F | 90.2 °F | 0.09 in. |
| October | 43.2 °F | 80.3 °F | 0.92 in. |
| November | 37.2 °F | 69.1 °F | 1.65 in. |
| December | 33.3 °F | 60.9 °F | 3.64 in. |
| Annual | 42.4 °F | 76.9 °F | 21.54 in. |
| 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 : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |