Everett, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 6.1 °C (low) to 15.6 °C (high). Annual precipitation averages 991.6 Millimeters. Everett is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.7 °C | 8.1 °C | 119.38 mm |
| February | 1.6 °C | 9.7 °C | 90.17 mm |
| March | 2.9 °C | 11.9 °C | 104.39 mm |
| April | 4.9 °C | 14.9 °C | 85.85 mm |
| May | 7.8 °C | 18.4 °C | 66.29 mm |
| June | 10.2 °C | 20.6 °C | 58.42 mm |
| July | 11.7 °C | 23.7 °C | 22.61 mm |
| August | 11.7 °C | 24.1 °C | 23.11 mm |
| September | 9.6 °C | 21.3 °C | 49.28 mm |
| October | 6.3 °C | 15.8 °C | 96.27 mm |
| November | 3.6 °C | 10.7 °C | 142.49 mm |
| December | 1.6 °C | 7.6 °C | 133.35 mm |
| Annual | 6.1 °C | 15.6 °C | 991.61 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 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 |