Oconto, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.4 °C (low) to 17 °C (high). Annual precipitation averages 599.2 Millimeters. Oconto is located in USDA Plant Hardiness Zone 5a. 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 | -10.4 °C | 2.9 °C | 9.91 mm |
| February | -8.8 °C | 4.9 °C | 13.21 mm |
| March | -3.8 °C | 10.9 °C | 30.23 mm |
| April | 1.3 °C | 16.2 °C | 67.56 mm |
| May | 7.6 °C | 22.1 °C | 106.93 mm |
| June | 13.7 °C | 27.6 °C | 97.28 mm |
| July | 16.4 °C | 30.6 °C | 79.76 mm |
| August | 15.2 °C | 29.4 °C | 70.1 mm |
| September | 9.6 °C | 25.8 °C | 48.01 mm |
| October | 2.2 °C | 18.6 °C | 45.47 mm |
| November | -4.7 °C | 10.4 °C | 18.54 mm |
| December | -9.3 °C | 4.2 °C | 12.19 mm |
| Annual | 2.4 °C | 17 °C | 599.19 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |