Unadilla, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.4 °C (low) to 17.2 °C (high). Annual precipitation averages 810.5 Millimeters. Unadilla is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10 °C | 1.2 °C | 20.07 mm |
| February | -7.7 °C | 4 °C | 26.16 mm |
| March | -2.1 °C | 10.9 °C | 46.23 mm |
| April | 3.9 °C | 17.6 °C | 73.41 mm |
| May | 10.3 °C | 23.2 °C | 139.19 mm |
| June | 16.3 °C | 28.7 °C | 114.55 mm |
| July | 18.5 °C | 30.8 °C | 102.11 mm |
| August | 17.2 °C | 29.8 °C | 85.34 mm |
| September | 11.8 °C | 26.2 °C | 74.42 mm |
| October | 4.9 °C | 19.3 °C | 62.74 mm |
| November | -2.2 °C | 10.6 °C | 37.08 mm |
| December | -7.6 °C | 3.6 °C | 29.21 mm |
| Annual | 4.4 °C | 17.2 °C | 810.51 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |