| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 6b: -5°F to 0°F Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F |
| 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: | 9c - Oak/Conifer Foothills |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 97031 - Hood River, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 28 | 30 | 34 | 38 | 44 | 50 | 54 | 53 | 45 | 37 | 34 | 29 | 40 |
| Avg Max Temp (°F) | 41 | 46 | 54 | 61 | 68 | 75 | 82 | 83 | 76 | 64 | 49 | 41 | 61 |
| Avg Precip (In.) | 4.94 | 3.98 | 2.82 | 1.74 | 1.09 | .8 | .31 | .34 | 1.04 | 2.14 | 4.69 | 5.26 | 29.15 |