Arbuckle, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 9.4 °C (low) to 24.1 °C (high). Annual precipitation averages 470.7 Millimeters. Arbuckle is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.8 °C | 13.4 °C | 96.52 mm |
| February | 5 °C | 16.2 °C | 94.74 mm |
| March | 6.4 °C | 19.2 °C | 60.2 mm |
| April | 7.9 °C | 22.8 °C | 30.99 mm |
| May | 11.5 °C | 27.4 °C | 19.3 mm |
| June | 14.4 °C | 31.5 °C | 5.08 mm |
| July | 15.8 °C | 34.3 °C | 0.25 mm |
| August | 14.9 °C | 33.8 °C | 2.03 mm |
| September | 13.3 °C | 32 °C | 3.81 mm |
| October | 9.8 °C | 26.7 °C | 21.34 mm |
| November | 5.8 °C | 18.6 °C | 47.75 mm |
| December | 3.6 °C | 13.4 °C | 88.65 mm |
| Annual | 9.4 °C | 24.1 °C | 470.66 mm |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 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 |