| 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 7a: 0°F to 5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dsa - Humid Continental Climate - Dry Warm Summer |
| Ecoregion: | 15j - Lower Clearwater Canyons |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 83536 - Kamiah, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 28 | 32 | 36 | 43 | 49 | 52 | 51 | 44 | 36 | 31 | 25 | 37 |
| Avg Max Temp (°F) | 38 | 47 | 55 | 64 | 72 | 80 | 88 | 90 | 79 | 64 | 46 | 38 | 63 |
| Avg Precip (In.) | 2.24 | 1.82 | 2.59 | 2.52 | 2.94 | 2.16 | 1.23 | 1.09 | 1.43 | 1.73 | 2.59 | 2.14 | 24.49 |