Gross, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.7 °C (low) to 15.4 °C (high). Annual precipitation averages 626.1 Millimeters. Gross 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 | -11.7 °C | -0.4 °C | 9.4 mm |
| February | -9.8 °C | 2.2 °C | 15.75 mm |
| March | -4.7 °C | 8.7 °C | 26.16 mm |
| April | 1.7 °C | 14.9 °C | 86.61 mm |
| May | 8 °C | 21 °C | 99.57 mm |
| June | 14.3 °C | 26.7 °C | 94.49 mm |
| July | 17.3 °C | 30.4 °C | 74.93 mm |
| August | 16.1 °C | 29.3 °C | 79.76 mm |
| September | 10.8 °C | 25.1 °C | 60.96 mm |
| October | 3.2 °C | 16.8 °C | 45.47 mm |
| November | -3.8 °C | 8.3 °C | 17.53 mm |
| December | -9.2 °C | 1.6 °C | 15.49 mm |
| Annual | 2.7 °C | 15.4 °C | 626.12 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 |