| 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 | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 47k - Northeastern Nebraska Loess Hills | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 68771 - Randolph, NE | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 15 | 25 | 36 | 48 | 58 | 62 | 60 | 50 | 37 | 24 | 13 | 37 |
| Avg Max Temp (°F) | 31 | 37 | 48 | 62 | 73 | 83 | 87 | 85 | 77 | 64 | 45 | 34 | 61 |
| Avg Precip (In.) | .54 | .71 | 2.04 | 2.81 | 4 | 4.04 | 3.28 | 2.87 | 2.38 | 1.85 | 1.43 | .68 | 26.64 |