Benton, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 1.8 °C (low) to 20.9 °C (high). Annual precipitation averages 181.6 Millimeters. Benton is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.3 °C | 10 °C | 27.43 mm |
| February | -4.8 °C | 11.1 °C | 29.46 mm |
| March | -2.6 °C | 14.8 °C | 22.35 mm |
| April | 0.3 °C | 18.6 °C | 11.68 mm |
| May | 4.4 °C | 23.8 °C | 12.7 mm |
| June | 8.9 °C | 30.1 °C | 12.7 mm |
| July | 12.3 °C | 34 °C | 11.18 mm |
| August | 10.9 °C | 33.2 °C | 6.35 mm |
| September | 7.1 °C | 28.8 °C | 7.62 mm |
| October | 1.6 °C | 22.1 °C | 10.16 mm |
| November | -3.7 °C | 14.9 °C | 12.19 mm |
| December | -6.7 °C | 9.5 °C | 17.78 mm |
| Annual | 1.8 °C | 20.9 °C | 181.6 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |