Davenport, 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 17.4 °C (high). Annual precipitation averages 716.3 Millimeters. Davenport 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 | -9.4 °C | 2.3 °C | 19.56 mm |
| February | -7.5 °C | 4.9 °C | 21.84 mm |
| March | -2.3 °C | 11.6 °C | 37.34 mm |
| April | 3.4 °C | 17.6 °C | 62.48 mm |
| May | 9.9 °C | 22.9 °C | 115.82 mm |
| June | 16 °C | 28.7 °C | 98.3 mm |
| July | 18.4 °C | 30.9 °C | 101.85 mm |
| August | 17.2 °C | 29.8 °C | 85.6 mm |
| September | 11.9 °C | 26.3 °C | 61.98 mm |
| October | 4.8 °C | 19.3 °C | 55.63 mm |
| November | -2.3 °C | 10.9 °C | 30.48 mm |
| December | -7.4 °C | 4 °C | 25.4 mm |
| Annual | 4.4 °C | 17.4 °C | 716.28 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 |