| 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 8a: 10F to 15F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 3d - Valley Foothills |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 97405 - Eugene, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 35 | 37 | 39 | 44 | 48 | 51 | 51 | 48 | 42 | 38 | 34 | 42 |
| Avg Max Temp (°F) | 47 | 52 | 57 | 61 | 67 | 73 | 81 | 82 | 77 | 65 | 53 | 46 | 63 |
| Avg Precip (In.) | 7.15 | 6.16 | 5.88 | 3.66 | 3.1 | 1.73 | .43 | .64 | 1.31 | 4.18 | 6.76 | 7.9 | 48.88 |