Bellwood, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.8 °C (low) to 16.3 °C (high). Annual precipitation averages 745 Millimeters. Bellwood 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 | -10.9 °C | 0.3 °C | 16.76 mm |
| February | -8.7 °C | 2.9 °C | 19.81 mm |
| March | -2.9 °C | 9.9 °C | 39.62 mm |
| April | 3.1 °C | 16.6 °C | 73.91 mm |
| May | 9.8 °C | 22.5 °C | 120.14 mm |
| June | 15.8 °C | 28.2 °C | 119.38 mm |
| July | 18.2 °C | 30.4 °C | 82.04 mm |
| August | 16.7 °C | 29.1 °C | 93.47 mm |
| September | 11.5 °C | 25.4 °C | 67.06 mm |
| October | 4.3 °C | 18.1 °C | 55.63 mm |
| November | -2.9 °C | 9.7 °C | 32.51 mm |
| December | -8.6 °C | 2.4 °C | 24.64 mm |
| Annual | 3.8 °C | 16.3 °C | 744.97 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 |