| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F Zone 8a: 10°F to 15°F Zone 9b: 25°F to 30°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 78b - Oak Savanna Foothills |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 97526 - Grants Pass, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 31 | 32 | 33 | 35 | 40 | 45 | 50 | 50 | 45 | 39 | 34 | 31 | 39 |
| Avg Max Temp (°F) | 46 | 52 | 57 | 63 | 70 | 78 | 86 | 87 | 81 | 68 | 52 | 45 | 65 |
| Avg Precip (In.) | 5.18 | 4.44 | 3.71 | 2.1 | 1.26 | .61 | .37 | .49 | .87 | 2.26 | 5.24 | 5.56 | 32.09 |