Frederic, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.1 °C (low) to 12.1 °C (high). Annual precipitation averages 840.2 Millimeters. Frederic 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 | -15.3 °C | -5.7 °C | 22.1 mm |
| February | -13.6 °C | -2.7 °C | 21.59 mm |
| March | -6.6 °C | 4.4 °C | 40.89 mm |
| April | 0.4 °C | 12.6 °C | 72.39 mm |
| May | 7.4 °C | 20 °C | 98.55 mm |
| June | 12.9 °C | 25.1 °C | 114.81 mm |
| July | 15.3 °C | 27.4 °C | 106.68 mm |
| August | 14.3 °C | 26.3 °C | 110.49 mm |
| September | 10 °C | 21.8 °C | 88.65 mm |
| October | 3.3 °C | 13.9 °C | 81.28 mm |
| November | -4.1 °C | 4.5 °C | 50.8 mm |
| December | -11.2 °C | -2.8 °C | 32 mm |
| Annual | 1.1 °C | 12.1 °C | 840.23 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 |