| 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 6a: -10°F to -5°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | Jun. 1 - Jun. 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 16d - Dry Partly Wooded Mountains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 83466 - North Fork, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 16 | 24 | 31 | 37 | 42 | 47 | 47 | 40 | 31 | 20 | 12 | 30 |
| Avg Max Temp (°F) | 29 | 35 | 46 | 53 | 63 | 70 | 80 | 81 | 72 | 55 | 36 | 27 | 54 |
| Avg Precip (In.) | 1.08 | .83 | .8 | 1.04 | 1.41 | 1.6 | .77 | .99 | .86 | .77 | 1.22 | 1.16 | 12.52 |