| 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: | September 21 - 30 | |
| Average Last Frost Date: | May 11 - 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 27e - Central Nebraska Loess Plains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 68822 - Broken Bow, NE | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 8 | 14 | 22 | 32 | 44 | 54 | 60 | 57 | 46 | 34 | 20 | 12 | 34 |
| Avg Max Temp (°F) | 34 | 40 | 49 | 60 | 70 | 80 | 86 | 84 | 76 | 64 | 46 | 37 | 60 |
| Avg Precip (In.) | .44 | .51 | 1.52 | 2.34 | 3.55 | 3.88 | 3.55 | 2.55 | 1.97 | 1.46 | 1.07 | .41 | 23.26 |