Alvo, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.8 °C (low) to 16.7 °C (high). Annual precipitation averages 808.2 Millimeters. Alvo is located in USDA Plant Hardiness Zone 6a. 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 | -9.1 °C | 1.2 °C | 20.57 mm |
| February | -6.8 °C | 3.9 °C | 26.16 mm |
| March | -1.6 °C | 10.3 °C | 43.94 mm |
| April | 4.4 °C | 16.8 °C | 77.22 mm |
| May | 10.4 °C | 22.6 °C | 130.81 mm |
| June | 16.4 °C | 28.1 °C | 119.63 mm |
| July | 18.7 °C | 30.4 °C | 93.98 mm |
| August | 17.2 °C | 29.3 °C | 92.71 mm |
| September | 12.4 °C | 25.6 °C | 74.68 mm |
| October | 5.1 °C | 18.6 °C | 61.72 mm |
| November | -1.9 °C | 9.9 °C | 36.83 mm |
| December | -7.4 °C | 3.1 °C | 29.97 mm |
| Annual | 4.8 °C | 16.7 °C | 808.22 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 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |