Woodinville, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 6.8 °C (low) to 16 °C (high). Annual precipitation averages 1107.5 Millimeters. Woodinville is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.2 °C | 8.4 °C | 147.07 mm |
| February | 2.2 °C | 9.9 °C | 105.92 mm |
| March | 3.5 °C | 12.2 °C | 113.54 mm |
| April | 5.4 °C | 14.9 °C | 92.46 mm |
| May | 8.3 °C | 18.7 °C | 65.02 mm |
| June | 10.8 °C | 21 °C | 56.9 mm |
| July | 12.7 °C | 24.7 °C | 24.13 mm |
| August | 12.7 °C | 25.1 °C | 27.43 mm |
| September | 10.7 °C | 21.9 °C | 51.31 mm |
| October | 7.2 °C | 15.9 °C | 107.19 mm |
| November | 4.1 °C | 10.9 °C | 164.59 mm |
| December | 2 °C | 7.9 °C | 151.89 mm |
| Annual | 6.8 °C | 16 °C | 1107.45 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |