| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| 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: | 17aa - Dry Intermontane Sagebrush Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 83467 - Salmon, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 14 | 23 | 30 | 38 | 44 | 49 | 47 | 39 | 29 | 20 | 11 | 29 |
| Avg Max Temp (°F) | 29 | 37 | 49 | 58 | 68 | 76 | 86 | 84 | 74 | 60 | 40 | 29 | 58 |
| Avg Precip (In.) | .8 | .57 | .59 | .84 | 1.53 | 1.49 | 1.06 | .88 | .83 | .71 | .81 | .86 | 10.97 |