| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°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 4a: -30°F to -25°F | |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | BWk - Cold Desert Climate | |
| Ecoregion: | 18g - Bighorn Salt Desert Shrub Basin | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 82649 - Shoshoni, WY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 1 | 8 | 21 | 30 | 40 | 49 | 54 | 52 | 42 | 30 | 16 | 4 | 29 |
| Avg Max Temp (°F) | 28 | 36 | 50 | 59 | 69 | 81 | 89 | 87 | 75 | 61 | 42 | 29 | 59 |
| Avg Precip (In.) | .19 | .12 | .29 | .89 | 1.64 | 1.01 | .68 | .56 | .77 | .6 | .28 | .15 | 7.18 |