| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F 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: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dsa - Humid Continental Climate - Dry Warm Summer |
| Ecoregion: | 12f - Semiarid Foothills |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 83670 - Sweet, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 24 | 30 | 35 | 42 | 49 | 54 | 53 | 45 | 36 | 28 | 21 | 36 |
| Avg Max Temp (°F) | 36 | 44 | 54 | 63 | 72 | 81 | 90 | 89 | 79 | 65 | 47 | 37 | 63 |
| Avg Precip (In.) | 1.68 | 1.49 | 1.48 | 1.21 | 1.24 | .79 | .3 | .34 | .69 | .86 | 1.7 | 1.68 | 13.47 |