Halsey, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 1.7 °C (low) to 16.6 °C (high). Annual precipitation averages 612.1 Millimeters. Halsey is located in USDA Plant Hardiness Zone 5a. 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 | -10.9 °C | 2.7 °C | 13.21 mm |
| February | -9.5 °C | 4.3 °C | 20.83 mm |
| March | -4.5 °C | 10.3 °C | 32 mm |
| April | 0.7 °C | 15.4 °C | 75.18 mm |
| May | 6.8 °C | 21.3 °C | 101.85 mm |
| June | 12.7 °C | 27.2 °C | 98.55 mm |
| July | 15.7 °C | 30.8 °C | 70.61 mm |
| August | 14.3 °C | 29.8 °C | 67.56 mm |
| September | 8.8 °C | 25.6 °C | 52.32 mm |
| October | 1.2 °C | 18.1 °C | 45.47 mm |
| November | -5.1 °C | 9.9 °C | 20.32 mm |
| December | -9.9 °C | 3.8 °C | 14.22 mm |
| Annual | 1.7 °C | 16.6 °C | 612.12 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 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 |