Frederic, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34 °F (low) to 53.7 °F (high). Annual precipitation averages 33.1 Inches. 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 | 4.4 °F | 21.7 °F | 0.87 in. |
| February | 7.6 °F | 27.1 °F | 0.85 in. |
| March | 20.2 °F | 40.0 °F | 1.61 in. |
| April | 32.8 °F | 54.6 °F | 2.85 in. |
| May | 45.4 °F | 68.0 °F | 3.88 in. |
| June | 55.3 °F | 77.1 °F | 4.52 in. |
| July | 59.6 °F | 81.4 °F | 4.2 in. |
| August | 57.7 °F | 79.3 °F | 4.35 in. |
| September | 50.0 °F | 71.3 °F | 3.49 in. |
| October | 37.9 °F | 57.1 °F | 3.2 in. |
| November | 24.7 °F | 40.1 °F | 2.0 in. |
| December | 11.9 °F | 26.9 °F | 1.26 in. |
| Annual | 34 °F | 53.7 °F | 33.08 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |