| 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: | Nov. 11 - Nov. 20 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 3c - Prairie Terraces |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 97362 - Mount Angel, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 36 | 39 | 41 | 46 | 51 | 55 | 55 | 51 | 44 | 39 | 34 | 44 |
| Avg Max Temp (°F) | 47 | 52 | 56 | 61 | 68 | 73 | 81 | 81 | 76 | 65 | 53 | 47 | 63 |
| Avg Precip (In.) | 6.12 | 5.01 | 4.49 | 3.18 | 2.55 | 1.81 | .66 | .91 | 1.71 | 3.52 | 6.47 | 6.67 | 43.12 |