Hollandale, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.6 °C (low) to 14 °C (high). Annual precipitation averages 965.5 Millimeters. Hollandale 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 | -12.3 °C | -2.6 °C | 36.07 mm |
| February | -10.6 °C | -0.2 °C | 37.85 mm |
| March | -4.4 °C | 6.5 °C | 52.58 mm |
| April | 1.9 °C | 14.3 °C | 97.54 mm |
| May | 8.3 °C | 20.8 °C | 109.98 mm |
| June | 14.1 °C | 26.2 °C | 141.73 mm |
| July | 16.2 °C | 28.1 °C | 114.05 mm |
| August | 15.1 °C | 27.2 °C | 107.95 mm |
| September | 10.3 °C | 23.3 °C | 93.73 mm |
| October | 3.8 °C | 16.1 °C | 72.14 mm |
| November | -2.4 °C | 7.5 °C | 58.67 mm |
| December | -8.3 °C | 0.5 °C | 43.18 mm |
| Annual | 2.6 °C | 14 °C | 965.47 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |