Big Falls, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.2 °F (low) to 54.4 °F (high). Annual precipitation averages 33.3 Inches. Big Falls is located in USDA Plant Hardiness Zone 5a. 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 | 7.7 °F | 24.6 °F | 1.23 in. |
| February | 9.5 °F | 28.7 °F | 1.1 in. |
| March | 20.3 °F | 40.4 °F | 1.78 in. |
| April | 32.5 °F | 54.4 °F | 3.16 in. |
| May | 44.7 °F | 67.2 °F | 3.88 in. |
| June | 54.7 °F | 76.6 °F | 4.55 in. |
| July | 58.7 °F | 80.9 °F | 3.81 in. |
| August | 56.8 °F | 78.9 °F | 3.73 in. |
| September | 48.5 °F | 71.2 °F | 3.59 in. |
| October | 36.8 °F | 57.6 °F | 2.91 in. |
| November | 25.9 °F | 42.8 °F | 1.9 in. |
| December | 14.5 °F | 29.8 °F | 1.61 in. |
| Annual | 34.2 °F | 54.4 °F | 33.25 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 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |