| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 2f - Central Puget Lowland |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98201 - Everett, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 35 | 38 | 41 | 47 | 51 | 54 | 54 | 49 | 43 | 38 | 34 | 43 |
| Avg Max Temp (°F) | 46 | 49 | 53 | 58 | 64 | 68 | 73 | 74 | 69 | 60 | 51 | 45 | 59 |
| Avg Precip (In.) | 4.38 | 3.36 | 3.77 | 2.91 | 2.55 | 2.2 | 1.3 | 1.35 | 2.06 | 3.18 | 5.1 | 4.94 | 37.11 |