| 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 Zone 9a: 20°F to 25°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Nov. 1 - Nov. 10 | |
| Average Last Frost Date: | Apr. 1 - Apr. 10 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | 2c - San Juan Islands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98261 - Lopez Island, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 36 | 38 | 41 | 45 | 49 | 51 | 51 | 49 | 43 | 39 | 35 | 43 |
| Avg Max Temp (°F) | 45 | 48 | 52 | 57 | 63 | 67 | 71 | 71 | 67 | 58 | 50 | 45 | 58 |
| Avg Precip (In.) | 4.07 | 2.89 | 2.27 | 1.76 | 1.54 | 1.33 | .93 | 1.01 | 1.32 | 2.4 | 4.44 | 4.3 | 28.25 |