| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°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. 11 - Apr. 20 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | 2e - Eastern Puget Uplands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98258 - Lake Stevens, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 35 | 37 | 41 | 46 | 50 | 54 | 54 | 49 | 42 | 37 | 34 | 43 |
| Avg Max Temp (°F) | 46 | 50 | 54 | 59 | 64 | 69 | 74 | 75 | 69 | 60 | 51 | 45 | 60 |
| Avg Precip (In.) | 5.04 | 3.89 | 4.27 | 3.4 | 2.91 | 2.43 | 1.44 | 1.51 | 2.31 | 3.62 | 5.75 | 5.68 | 42.26 |