| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F | |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F | |
| Average First Frost Date: | Sep.1 - Sep. 10 | |
| Average Last Frost Date: | Jun. 1 - Jun. 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 12e - Upper Snake River Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 83448 - Sugar City, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 13 | 20 | 28 | 36 | 43 | 47 | 45 | 37 | 28 | 20 | 10 | 28 |
| Avg Max Temp (°F) | 29 | 35 | 44 | 55 | 67 | 75 | 84 | 83 | 73 | 60 | 42 | 30 | 57 |
| Avg Precip (In.) | 1.27 | .99 | 1.1 | 1.12 | 1.9 | 1.44 | .92 | .74 | .91 | 1.06 | 1.25 | 1.21 | 13.92 |