Big Bend, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 42.1 °F (low) to 71.6 °F (high). Annual precipitation averages 69 Inches. Big Bend is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.0 °F | 50.5 °F | 11.74 in. |
| February | 32.8 °F | 55.3 °F | 10.92 in. |
| March | 35.5 °F | 60.9 °F | 10.26 in. |
| April | 38.9 °F | 67.4 °F | 5.34 in. |
| May | 45.3 °F | 76.8 °F | 3.65 in. |
| June | 51.4 °F | 86.2 °F | 1.38 in. |
| July | 56.3 °F | 95.6 °F | 0.13 in. |
| August | 54.4 °F | 94.8 °F | 0.27 in. |
| September | 49.0 °F | 89.0 °F | 1.01 in. |
| October | 41.4 °F | 74.7 °F | 4.17 in. |
| November | 35.7 °F | 58.5 °F | 6.94 in. |
| December | 31.9 °F | 49.4 °F | 13.18 in. |
| Annual | 42.1 °F | 71.6 °F | 68.99 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |