Wallace, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.2 °C (low) to 17.6 °C (high). Annual precipitation averages 537 Millimeters. Wallace 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 | -9.8 °C | 4.2 °C | 7.87 mm |
| February | -8.7 °C | 5.8 °C | 13.46 mm |
| March | -4.1 °C | 11.8 °C | 23.11 mm |
| April | 0.8 °C | 16.5 °C | 55.88 mm |
| May | 7 °C | 21.9 °C | 86.61 mm |
| June | 13.1 °C | 28.3 °C | 93.47 mm |
| July | 16.1 °C | 31.6 °C | 84.84 mm |
| August | 14.8 °C | 30.4 °C | 65.79 mm |
| September | 9.3 °C | 26.1 °C | 40.13 mm |
| October | 1.8 °C | 18.4 °C | 42.42 mm |
| November | -4.8 °C | 10.8 °C | 13.46 mm |
| December | -9.2 °C | 4.8 °C | 9.91 mm |
| Annual | 2.2 °C | 17.6 °C | 536.95 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 | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |