Clear Creek, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 32.8 °F (low) to 60.6 °F (high). Annual precipitation averages 40.3 Inches. Clear Creek is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.2 °F | 41.9 °F | 7.37 in. |
| February | 22.4 °F | 44.9 °F | 6.33 in. |
| March | 25.9 °F | 50.2 °F | 6.24 in. |
| April | 29.9 °F | 54.7 °F | 3.35 in. |
| May | 36.4 °F | 64.3 °F | 2.07 in. |
| June | 42.2 °F | 74.2 °F | 0.93 in. |
| July | 47.9 °F | 83.5 °F | 0.32 in. |
| August | 46.0 °F | 82.6 °F | 0.28 in. |
| September | 40.5 °F | 76.5 °F | 0.41 in. |
| October | 33.1 °F | 63.7 °F | 2.02 in. |
| November | 26.7 °F | 49.6 °F | 3.97 in. |
| December | 21.5 °F | 40.9 °F | 6.99 in. |
| Annual | 32.8 °F | 60.6 °F | 40.28 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |