Unadilla, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40 °F (low) to 62.9 °F (high). Annual precipitation averages 31.9 Inches. 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 | 14.0 °F | 34.1 °F | 0.79 in. |
| February | 18.2 °F | 39.2 °F | 1.03 in. |
| March | 28.3 °F | 51.7 °F | 1.82 in. |
| April | 39.1 °F | 63.6 °F | 2.89 in. |
| May | 50.6 °F | 73.8 °F | 5.48 in. |
| June | 61.3 °F | 83.6 °F | 4.51 in. |
| July | 65.3 °F | 87.5 °F | 4.02 in. |
| August | 63.0 °F | 85.7 °F | 3.36 in. |
| September | 53.3 °F | 79.2 °F | 2.93 in. |
| October | 40.8 °F | 66.7 °F | 2.47 in. |
| November | 28.0 °F | 51.0 °F | 1.46 in. |
| December | 18.3 °F | 38.5 °F | 1.15 in. |
| Annual | 40 °F | 62.9 °F | 31.91 in. |
| 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 : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |