Greenwood, 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 16.9 °C (high). Annual precipitation averages 798.3 Millimeters. Greenwood 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.1 °C | 0.8 °C | 20.32 mm |
| February | -7.7 °C | 3.7 °C | 25.65 mm |
| March | -2.1 °C | 10.6 °C | 42.42 mm |
| April | 4 °C | 17.3 °C | 77.98 mm |
| May | 10.3 °C | 23.1 °C | 126.49 mm |
| June | 16.2 °C | 28.4 °C | 118.36 mm |
| July | 18.5 °C | 30.8 °C | 92.2 mm |
| August | 17.1 °C | 29.7 °C | 95 mm |
| September | 11.7 °C | 26.1 °C | 73.41 mm |
| October | 4.9 °C | 19.1 °C | 60.71 mm |
| November | -2.3 °C | 10.3 °C | 36.07 mm |
| December | -7.7 °C | 3.2 °C | 29.72 mm |
| Annual | 4.4 °C | 16.9 °C | 798.33 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |