| 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 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: | 78c - Umpqua Interior Foothills |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 97462 - Oakland, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 36 | 38 | 40 | 44 | 49 | 53 | 52 | 48 | 43 | 39 | 35 | 43 |
| Avg Max Temp (°F) | 49 | 53 | 58 | 63 | 69 | 76 | 83 | 84 | 79 | 67 | 54 | 48 | 65 |
| Avg Precip (In.) | 5.76 | 5.12 | 4.42 | 3.36 | 2.34 | 1.22 | .6 | .7 | 1.43 | 2.99 | 6.69 | 6.72 | 41.36 |