Otoe, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.5 °C (low) to 17 °C (high). Annual precipitation averages 818.4 Millimeters. Otoe 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 | -10.1 °C | 0.9 °C | 20.32 mm |
| February | -7.8 °C | 3.7 °C | 26.16 mm |
| March | -2.1 °C | 10.9 °C | 45.97 mm |
| April | 3.8 °C | 17.4 °C | 76.2 mm |
| May | 10.4 °C | 23.1 °C | 138.43 mm |
| June | 16.4 °C | 28.4 °C | 117.09 mm |
| July | 18.6 °C | 30.6 °C | 102.62 mm |
| August | 17.2 °C | 29.6 °C | 85.34 mm |
| September | 11.9 °C | 26.1 °C | 75.18 mm |
| October | 5.1 °C | 19.2 °C | 63.75 mm |
| November | -2.1 °C | 10.4 °C | 37.59 mm |
| December | -7.4 °C | 3.5 °C | 29.72 mm |
| Annual | 4.5 °C | 17 °C | 818.37 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 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |