| 2023 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 5b: -15°F to -10°F Zone 4b: -25°F to -20°F Zone 5a: -20°F to -15°F Zone 4a: -30°F to -25°F | |
| 2012 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 4b: -25°F to -20°F Zone 5a: -20°F to -15°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: | May 21 - May 31 | |
| 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: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 82834 - Buffalo, WY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 8 | 13 | 22 | 31 | 40 | 49 | 55 | 53 | 43 | 32 | 19 | 10 | 31 |
| Avg Max Temp (°F) | 34 | 39 | 46 | 55 | 64 | 75 | 83 | 82 | 71 | 59 | 43 | 36 | 57 |
| Avg Precip (In.) | .48 | .41 | .77 | 1.68 | 2.55 | 2.22 | 1.49 | .92 | 1.42 | 1.09 | .52 | .5 | 14.05 |