Hebron, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.7 °C (low) to 17.8 °C (high). Annual precipitation averages 773.9 Millimeters. Hebron is located in USDA Plant Hardiness Zone 6a. 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 | -9.1 °C | 2.6 °C | 19.05 mm |
| February | -7.2 °C | 5.2 °C | 20.57 mm |
| March | -1.9 °C | 11.9 °C | 42.42 mm |
| April | 3.7 °C | 17.8 °C | 67.82 mm |
| May | 10.3 °C | 23.3 °C | 128.78 mm |
| June | 16.3 °C | 29.1 °C | 109.47 mm |
| July | 18.8 °C | 31.4 °C | 113.03 mm |
| August | 17.4 °C | 30.2 °C | 89.66 mm |
| September | 12.2 °C | 26.4 °C | 66.55 mm |
| October | 5.1 °C | 19.5 °C | 57.4 mm |
| November | -1.9 °C | 11.2 °C | 33.78 mm |
| December | -7.1 °C | 4.4 °C | 25.4 mm |
| Annual | 4.7 °C | 17.8 °C | 773.93 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 6a : -23.3°C to -20.6°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 |