| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate |
| Ecoregion: | 12a - Treasure Valley |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 83676 - Wilder, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 26 | 32 | 38 | 46 | 52 | 57 | 55 | 46 | 36 | 29 | 22 | 38 |
| Avg Max Temp (°F) | 37 | 46 | 57 | 65 | 74 | 83 | 91 | 90 | 80 | 67 | 49 | 38 | 65 |
| Avg Precip (In.) | 1.26 | 1.01 | 1.13 | .95 | 1.08 | .76 | .33 | .33 | .56 | .67 | 1.13 | 1.21 | 10.42 |