Lake Hallie, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 1.6 °C (low) to 12.6 °C (high). Annual precipitation averages 851.7 Millimeters. Lake Hallie is located in USDA Plant Hardiness Zone 4b. 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 | -14.6 °C | -4.8 °C | 27.18 mm |
| February | -12.7 °C | -2.1 °C | 27.43 mm |
| March | -6 °C | 4.8 °C | 46.74 mm |
| April | 1.1 °C | 13.1 °C | 78.99 mm |
| May | 7.9 °C | 20.3 °C | 100.58 mm |
| June | 13.6 °C | 25.4 °C | 118.62 mm |
| July | 15.9 °C | 27.7 °C | 101.85 mm |
| August | 14.7 °C | 26.6 °C | 105.16 mm |
| September | 9.9 °C | 22.3 °C | 94.23 mm |
| October | 3.2 °C | 14.5 °C | 72.9 mm |
| November | -3.6 °C | 5.6 °C | 42.67 mm |
| December | -10.4 °C | -1.8 °C | 35.31 mm |
| Annual | 1.6 °C | 12.6 °C | 851.66 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 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |