Chief Lake, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1 °C (low) to 11.2 °C (high). Annual precipitation averages 884.4 Millimeters. Chief Lake is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.2 °C | -6.1 °C | 27.18 mm |
| February | -15.9 °C | -3 °C | 27.43 mm |
| March | -9.2 °C | 3.8 °C | 42.93 mm |
| April | -1.8 °C | 11.4 °C | 77.22 mm |
| May | 4.9 °C | 18.9 °C | 102.62 mm |
| June | 10.5 °C | 23.8 °C | 116.33 mm |
| July | 13 °C | 26.1 °C | 111.76 mm |
| August | 11.7 °C | 24.9 °C | 103.38 mm |
| September | 7.8 °C | 20.7 °C | 101.09 mm |
| October | 1.3 °C | 12.7 °C | 88.65 mm |
| November | -5.2 °C | 4.1 °C | 49.02 mm |
| December | -12.4 °C | -3.2 °C | 36.83 mm |
| Annual | -1 °C | 11.2 °C | 884.44 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |