| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate |
| Ecoregion: | 12a - Treasure Valley |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 97918 - Vale, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 24 | 30 | 35 | 44 | 51 | 56 | 54 | 44 | 34 | 27 | 19 | 36 |
| Avg Max Temp (°F) | 36 | 45 | 56 | 65 | 75 | 84 | 93 | 91 | 80 | 66 | 48 | 37 | 65 |
| Avg Precip (In.) | 1.24 | .98 | 1.02 | .86 | 1.07 | .77 | .47 | .39 | .52 | .63 | 1.14 | 1.37 | 10.46 |