Cornlea, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3 °C (low) to 15.8 °C (high). Annual precipitation averages 720.6 Millimeters. Cornlea 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 | -11.1 °C | 0.4 °C | 15.49 mm |
| February | -9.2 °C | 2.8 °C | 18.54 mm |
| March | -3.8 °C | 9.4 °C | 39.37 mm |
| April | 2.1 °C | 15.9 °C | 74.42 mm |
| May | 8.7 °C | 21.8 °C | 113.03 mm |
| June | 14.8 °C | 27.4 °C | 114.55 mm |
| July | 17.2 °C | 29.5 °C | 84.33 mm |
| August | 15.8 °C | 28.2 °C | 87.63 mm |
| September | 10.6 °C | 24.8 °C | 65.79 mm |
| October | 3.2 °C | 17.7 °C | 55.88 mm |
| November | -3.9 °C | 9.1 °C | 29.72 mm |
| December | -9 °C | 2.2 °C | 21.84 mm |
| Annual | 3 °C | 15.8 °C | 720.59 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 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |