Goodman, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1 °C (low) to 10.8 °C (high). Annual precipitation averages 812.8 Millimeters. Goodman is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.6 °C | -5.3 °C | 29.21 mm |
| February | -14.8 °C | -2.9 °C | 27.43 mm |
| March | -9.3 °C | 3.4 °C | 43.43 mm |
| April | -2.4 °C | 10.5 °C | 67.82 mm |
| May | 4.4 °C | 18.3 °C | 89.15 mm |
| June | 10.1 °C | 22.9 °C | 109.22 mm |
| July | 12.3 °C | 25.2 °C | 100.08 mm |
| August | 11.4 °C | 24.1 °C | 78.99 mm |
| September | 7.2 °C | 19.7 °C | 95.25 mm |
| October | 0.9 °C | 12.3 °C | 84.33 mm |
| November | -4.9 °C | 4.2 °C | 48.77 mm |
| December | -11.5 °C | -2.4 °C | 39.12 mm |
| Annual | -1 °C | 10.8 °C | 812.8 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 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 |