| 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 8b: 15F to 20F |
| Average First Frost Date: | Nov. 11 - Nov. 20 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 3a - Portland/Vancouver Basin |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98664 - Vancouver, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 35 | 38 | 41 | 46 | 51 | 55 | 55 | 50 | 43 | 39 | 34 | 43 |
| Avg Max Temp (°F) | 46 | 50 | 56 | 60 | 67 | 72 | 79 | 79 | 75 | 64 | 52 | 45 | 62 |
| Avg Precip (In.) | 5.51 | 4.53 | 4.01 | 2.88 | 2.5 | 1.72 | .74 | 1.05 | 1.75 | 3.12 | 6.01 | 6.12 | 39.94 |