Fall Creek, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.2 °C (low) to 12.5 °C (high). Annual precipitation averages 850.4 Millimeters. Fall Creek 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 | -14.8 °C | -4.8 °C | 26.42 mm |
| February | -13 °C | -2.1 °C | 26.16 mm |
| March | -6.3 °C | 4.8 °C | 44.2 mm |
| April | 0.7 °C | 12.9 °C | 78.74 mm |
| May | 7.5 °C | 20.2 °C | 103.38 mm |
| June | 13.2 °C | 25.3 °C | 125.48 mm |
| July | 15.4 °C | 27.6 °C | 99.06 mm |
| August | 14.2 °C | 26.4 °C | 105.16 mm |
| September | 9.5 °C | 22.1 °C | 94.23 mm |
| October | 2.8 °C | 14.3 °C | 69.85 mm |
| November | -3.9 °C | 5.6 °C | 42.93 mm |
| December | -10.7 °C | -1.8 °C | 34.8 mm |
| Annual | 1.2 °C | 12.5 °C | 850.41 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 | Dfb - Humid Continental Mild Summer, Wet All Year |