Ridgeland, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.3 °C (low) to 11.5 °C (high). Annual precipitation averages 875 Millimeters. Ridgeland is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.9 °C | -5.8 °C | 26.42 mm |
| February | -14.3 °C | -3.1 °C | 27.69 mm |
| March | -7.4 °C | 3.8 °C | 54.1 mm |
| April | -0.2 °C | 11.9 °C | 82.04 mm |
| May | 6.8 °C | 19.2 °C | 100.84 mm |
| June | 12.5 °C | 24.3 °C | 120.9 mm |
| July | 14.7 °C | 26.6 °C | 100.33 mm |
| August | 13.4 °C | 25.4 °C | 113.54 mm |
| September | 8.8 °C | 21.2 °C | 92.2 mm |
| October | 2 °C | 13.3 °C | 75.44 mm |
| November | -4.6 °C | 4.5 °C | 46.48 mm |
| December | -11.7 °C | -2.9 °C | 35.05 mm |
| Annual | 0.3 °C | 11.5 °C | 875.03 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| 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 |