Dixon, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 9.1 °C (low) to 23.1 °C (high). Annual precipitation averages 522 Millimeters. Dixon is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.8 °C | 13.1 °C | 108.2 mm |
| February | 5.1 °C | 15.9 °C | 103.12 mm |
| March | 6.6 °C | 18.7 °C | 73.91 mm |
| April | 8.1 °C | 21.5 °C | 33.27 mm |
| May | 10.9 °C | 25.8 °C | 18.03 mm |
| June | 13.3 °C | 29.8 °C | 6.1 mm |
| July | 14.5 °C | 32.6 °C | 0.25 mm |
| August | 14.2 °C | 32.2 °C | 0.51 mm |
| September | 13.2 °C | 30.6 °C | 2.54 mm |
| October | 10.1 °C | 25.5 °C | 22.35 mm |
| November | 5.9 °C | 18.3 °C | 48.26 mm |
| December | 3.4 °C | 13.3 °C | 105.41 mm |
| Annual | 9.1 °C | 23.1 °C | 521.95 mm |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| 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 | Normal |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |