| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°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.11 - Sep. 20 | |
| Average Last Frost Date: | Jun. 1 - Jun. 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 43q - Mesic Dissected Plains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 82801 - Sheridan, WY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 14 | 22 | 30 | 39 | 47 | 52 | 51 | 41 | 30 | 18 | 10 | 30 |
| Avg Max Temp (°F) | 33 | 39 | 48 | 58 | 67 | 77 | 86 | 85 | 74 | 60 | 44 | 35 | 59 |
| Avg Precip (In.) | .72 | .56 | .96 | 1.73 | 2.4 | 2.05 | 1.13 | .81 | 1.37 | 1.37 | .76 | .63 | 14.48 |