Big Bear City, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 1 °C (low) to 16.7 °C (high). Annual precipitation averages 507.3 Millimeters. Big Bear City 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 | -4.9 °C | 8.7 °C | 119.38 mm |
| February | -5.1 °C | 8.6 °C | 104.9 mm |
| March | -3.4 °C | 10.9 °C | 68.33 mm |
| April | -1.3 °C | 14.1 °C | 23.62 mm |
| May | 2 °C | 18.7 °C | 9.91 mm |
| June | 5.8 °C | 23.9 °C | 3.56 mm |
| July | 9.5 °C | 26.7 °C | 14.73 mm |
| August | 9.3 °C | 26.2 °C | 14.99 mm |
| September | 6.1 °C | 23.2 °C | 10.92 mm |
| October | 1.3 °C | 18.1 °C | 22.1 mm |
| November | -2.7 °C | 12.4 °C | 31.75 mm |
| December | -5.1 °C | 8.4 °C | 83.06 mm |
| Annual | 1 °C | 16.7 °C | 507.25 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |