| 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. 11 - Oct. 20 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate |
| Ecoregion: | 12i - Magic Valley |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 83332 - Hagerman, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 22 | 28 | 34 | 41 | 49 | 54 | 52 | 44 | 34 | 27 | 19 | 35 |
| Avg Max Temp (°F) | 35 | 42 | 52 | 62 | 73 | 83 | 91 | 90 | 79 | 65 | 49 | 37 | 63 |
| Avg Precip (In.) | 1.31 | .99 | 1.08 | .66 | .9 | .69 | .23 | .27 | .39 | .64 | 1.28 | 1.35 | 9.77 |