Bertrand, 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 17.2 °C (high). Annual precipitation averages 608.6 Millimeters. Bertrand is located in USDA Plant Hardiness Zone 6a. 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 | -9.6 °C | 3 °C | 10.41 mm |
| February | -7.5 °C | 5.1 °C | 15.49 mm |
| March | -3.5 °C | 11.4 °C | 33.53 mm |
| April | 2.7 °C | 16.5 °C | 59.44 mm |
| May | 8.5 °C | 22 °C | 97.54 mm |
| June | 14.6 °C | 28.2 °C | 89.15 mm |
| July | 17.1 °C | 30.8 °C | 94.74 mm |
| August | 15.9 °C | 29.2 °C | 78.49 mm |
| September | 10.7 °C | 25.9 °C | 44.2 mm |
| October | 3.3 °C | 18.7 °C | 45.97 mm |
| November | -3.7 °C | 10.8 °C | 23.37 mm |
| December | -8.6 °C | 4.3 °C | 16.26 mm |
| Annual | 3.3 °C | 17.2 °C | 608.59 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 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |