Balsam Lake, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.5 °F (low) to 53.4 °F (high). Annual precipitation averages 32.4 Inches. Balsam Lake 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 | 3.9 °F | 21.6 °F | 0.87 in. |
| February | 7.0 °F | 26.9 °F | 0.88 in. |
| March | 19.6 °F | 39.5 °F | 1.51 in. |
| April | 32.5 °F | 54.2 °F | 2.86 in. |
| May | 45.0 °F | 67.5 °F | 3.93 in. |
| June | 55.1 °F | 76.7 °F | 4.43 in. |
| July | 59.4 °F | 80.8 °F | 4.32 in. |
| August | 57.3 °F | 78.9 °F | 4.1 in. |
| September | 49.3 °F | 71.0 °F | 3.5 in. |
| October | 37.1 °F | 56.7 °F | 3.08 in. |
| November | 24.5 °F | 40.2 °F | 1.7 in. |
| December | 11.5 °F | 26.8 °F | 1.21 in. |
| Annual | 33.5 °F | 53.4 °F | 32.39 in. |
| 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 : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |