Tehachapi, California has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 6.3 °C (low) to 20 °C (high). Annual precipitation averages 256.5 Millimeters. Tehachapi is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.4 °C | 12 °C | 50.29 mm |
| February | 0.6 °C | 12.5 °C | 53.85 mm |
| March | 1.9 °C | 14.8 °C | 42.16 mm |
| April | 3.6 °C | 16.5 °C | 18.03 mm |
| May | 7.6 °C | 21.2 °C | 11.43 mm |
| June | 11.8 °C | 26.4 °C | 2.54 mm |
| July | 15.2 °C | 30.1 °C | 2.54 mm |
| August | 14.3 °C | 30.4 °C | 2.54 mm |
| September | 11.1 °C | 27.5 °C | 3.3 mm |
| October | 6.1 °C | 21.4 °C | 13.21 mm |
| November | 2.4 °C | 15.8 °C | 21.84 mm |
| December | 0.1 °C | 11.1 °C | 34.8 mm |
| Annual | 6.3 °C | 20 °C | 256.53 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |