| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F | |
| 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: | 27f - Rainwater Basin Plains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 68434 - Seward, NE | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 19 | 29 | 40 | 51 | 61 | 65 | 63 | 54 | 42 | 29 | 18 | 40 |
| Avg Max Temp (°F) | 33 | 40 | 51 | 64 | 74 | 85 | 89 | 86 | 78 | 66 | 48 | 36 | 62 |
| Avg Precip (In.) | .63 | .58 | 2.14 | 2.77 | 4.46 | 3.75 | 3.54 | 3.33 | 2.79 | 2.03 | 1.58 | .73 | 28.32 |