Big Creek, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 41.6 °F (low) to 64 °F (high). Annual precipitation averages 34.4 Inches. Big Creek is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.2 °F | 50.0 °F | 6.6 in. |
| February | 30.3 °F | 50.2 °F | 5.97 in. |
| March | 32.4 °F | 53.2 °F | 5.26 in. |
| April | 35.6 °F | 57.2 °F | 2.99 in. |
| May | 42.7 °F | 65.4 °F | 1.95 in. |
| June | 50.5 °F | 75.5 °F | 0.56 in. |
| July | 57.3 °F | 83.4 °F | 0.7 in. |
| August | 56.7 °F | 83.4 °F | 0.11 in. |
| September | 51.9 °F | 77.7 °F | 0.29 in. |
| October | 43.9 °F | 67.1 °F | 2.13 in. |
| November | 36.0 °F | 56.5 °F | 2.61 in. |
| December | 30.7 °F | 48.8 °F | 5.25 in. |
| Annual | 41.6 °F | 64 °F | 34.42 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |