Olivehurst, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 48.9 °F (low) to 75.2 °F (high). Annual precipitation averages 22.2 Inches. 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 | 38.7 °F | 55.6 °F | 4.39 in. |
| February | 41.1 °F | 61.0 °F | 3.89 in. |
| March | 43.8 °F | 66.2 °F | 3.34 in. |
| April | 46.3 °F | 72.2 °F | 1.82 in. |
| May | 52.5 °F | 80.9 °F | 0.92 in. |
| June | 57.9 °F | 89.1 °F | 0.25 in. |
| July | 61.1 °F | 94.9 °F | 0.0 in. |
| August | 59.8 °F | 93.6 °F | 0.05 in. |
| September | 56.3 °F | 89.3 °F | 0.12 in. |
| October | 49.4 °F | 79.3 °F | 1.08 in. |
| November | 42.0 °F | 64.8 °F | 2.17 in. |
| December | 38.0 °F | 55.6 °F | 4.15 in. |
| Annual | 48.9 °F | 75.2 °F | 22.18 in. |
| 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 : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |