| 2023 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 Zone 5b: -15°F to -10°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 Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Sep.11 - Sep. 20 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate |
| Ecoregion: | 80f - Owyhee Uplands and Canyons |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 97910 - Jordan Valley, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 22 | 26 | 30 | 37 | 44 | 50 | 48 | 39 | 31 | 24 | 17 | 32 |
| Avg Max Temp (°F) | 37 | 43 | 51 | 59 | 67 | 77 | 87 | 86 | 76 | 64 | 47 | 39 | 61 |
| Avg Precip (In.) | 1.46 | 1.27 | 1.47 | 1.4 | 1.39 | 1.2 | .5 | .48 | .68 | .97 | 1.35 | 1.37 | 13.54 |