| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°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 | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | 25d - Flat to Rolling Plains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 69301 - Alliance, NE | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 11 | 16 | 23 | 32 | 43 | 53 | 58 | 56 | 45 | 33 | 21 | 13 | 34 |
| Avg Max Temp (°F) | 35 | 41 | 48 | 58 | 68 | 80 | 87 | 85 | 75 | 63 | 46 | 39 | 60 |
| Avg Precip (In.) | .37 | .35 | .8 | 1.71 | 3.12 | 2.75 | 2.14 | 1.66 | 1.42 | .89 | .57 | .36 | 16.14 |