Olivehurst, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 9.4 °C (low) to 24 °C (high). Annual precipitation averages 563.4 Millimeters. Olivehurst is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.7 °C | 13.1 °C | 111.51 mm |
| February | 5.1 °C | 16.1 °C | 98.81 mm |
| March | 6.6 °C | 19 °C | 84.84 mm |
| April | 7.9 °C | 22.3 °C | 46.23 mm |
| May | 11.4 °C | 27.2 °C | 23.37 mm |
| June | 14.4 °C | 31.7 °C | 6.35 mm |
| July | 16.2 °C | 34.9 °C | 0 mm |
| August | 15.4 °C | 34.2 °C | 1.27 mm |
| September | 13.5 °C | 31.8 °C | 3.05 mm |
| October | 9.7 °C | 26.3 °C | 27.43 mm |
| November | 5.6 °C | 18.2 °C | 55.12 mm |
| December | 3.3 °C | 13.1 °C | 105.41 mm |
| Annual | 9.4 °C | 24 °C | 563.39 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |