| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | 3b - Willamette River and Tributaries Gallery Forest | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 97351 - Independence, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 35 | 37 | 39 | 44 | 48 | 51 | 51 | 47 | 41 | 38 | 34 | 42 |
| Avg Max Temp (°F) | 46 | 51 | 56 | 61 | 68 | 74 | 81 | 82 | 77 | 65 | 52 | 46 | 63 |
| Avg Precip (In.) | 7.14 | 6.22 | 5.16 | 3.17 | 2.31 | 1.41 | .48 | .62 | 1.41 | 3.39 | 7.11 | 7.86 | 46.3 |