| 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 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Sep.11 - Sep. 20 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | Dsa - Humid Continental Climate - Dry Warm Summer | |
| Ecoregion: | 15j - Lower Clearwater Canyons | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 83544 - Orofino, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 27 | 31 | 36 | 43 | 49 | 53 | 52 | 44 | 36 | 30 | 25 | 37 |
| Avg Max Temp (°F) | 37 | 44 | 53 | 62 | 70 | 77 | 87 | 88 | 77 | 62 | 45 | 37 | 62 |
| Avg Precip (In.) | 2.8 | 2.46 | 2.49 | 2.38 | 2.59 | 1.7 | 1.08 | .91 | 1.28 | 1.93 | 3.25 | 3.25 | 26.11 |