| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Sep.1 - Sep. 10 | |
| Average Last Frost Date: | Jun. 11 - Jun. 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 12d - Dissected Plateaus and Teton Basin | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 83452 - Tetonia, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 6 | 10 | 17 | 26 | 34 | 40 | 46 | 44 | 36 | 27 | 17 | 7 | 26 |
| Avg Max Temp (°F) | 28 | 33 | 40 | 50 | 61 | 71 | 79 | 79 | 69 | 56 | 39 | 29 | 53 |
| Avg Precip (In.) | 1.75 | 1.21 | 1.34 | 1.44 | 2.54 | 1.61 | 1.35 | 1.22 | 1.33 | 1.45 | 1.48 | 1.63 | 18.36 |