Oxnard, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 11.2 °C (low) to 20.5 °C (high). Annual precipitation averages 386.8 Millimeters. Oxnard is located in USDA Plant Hardiness Zone 10b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.2 °C | 18.8 °C | 91.44 mm |
| February | 8.2 °C | 18.5 °C | 98.3 mm |
| March | 8.8 °C | 18.8 °C | 64.52 mm |
| April | 9.4 °C | 18.8 °C | 19.3 mm |
| May | 11.4 °C | 19.7 °C | 7.62 mm |
| June | 13.4 °C | 20.7 °C | 1.52 mm |
| July | 15.1 °C | 22.4 °C | 0.76 mm |
| August | 15.2 °C | 22.7 °C | 0 mm |
| September | 14.4 °C | 23.1 °C | 2.03 mm |
| October | 12.7 °C | 22.6 °C | 13.21 mm |
| November | 9.9 °C | 21.2 °C | 28.96 mm |
| December | 7.9 °C | 18.6 °C | 59.18 mm |
| Annual | 11.2 °C | 20.5 °C | 386.84 mm |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10b : 1.7°C to 4.4°C |
| Plant Hardiness Zone - 2012 | Zone 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |