Jim Falls, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.1 °C (low) to 12.3 °C (high). Annual precipitation averages 827.3 Millimeters. Jim Falls 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 | -14.9 °C | -5.1 °C | 24.89 mm |
| February | -13.3 °C | -2.5 °C | 24.38 mm |
| March | -6.5 °C | 4.4 °C | 40.13 mm |
| April | 0.7 °C | 12.7 °C | 74.42 mm |
| May | 7.4 °C | 20 °C | 96.27 mm |
| June | 13 °C | 25.1 °C | 115.32 mm |
| July | 15.3 °C | 27.3 °C | 108.46 mm |
| August | 14.1 °C | 26.3 °C | 101.09 mm |
| September | 9.4 °C | 21.9 °C | 90.93 mm |
| October | 2.8 °C | 14.1 °C | 76.45 mm |
| November | -3.8 °C | 5.2 °C | 43.18 mm |
| December | -10.7 °C | -2.1 °C | 31.75 mm |
| Annual | 1.1 °C | 12.3 °C | 827.27 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 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |