Ravenna, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.3 °C (low) to 16.9 °C (high). Annual precipitation averages 667 Millimeters. Ravenna is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.1 °C | 2.2 °C | 12.95 mm |
| February | -8.4 °C | 4.3 °C | 16.26 mm |
| March | -3.2 °C | 10.9 °C | 36.83 mm |
| April | 2.4 °C | 16.9 °C | 70.36 mm |
| May | 8.7 °C | 22.3 °C | 108.2 mm |
| June | 14.8 °C | 28.1 °C | 106.17 mm |
| July | 17.5 °C | 30.5 °C | 83.06 mm |
| August | 16.3 °C | 29.3 °C | 85.09 mm |
| September | 10.7 °C | 25.7 °C | 52.58 mm |
| October | 3.3 °C | 18.6 °C | 53.09 mm |
| November | -3.7 °C | 10.4 °C | 24.13 mm |
| December | -8.7 °C | 3.7 °C | 18.29 mm |
| Annual | 3.3 °C | 16.9 °C | 667.01 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 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 |