Ridgeland, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.6 °F (low) to 52.7 °F (high). Annual precipitation averages 34.5 Inches. 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 | 3.3 °F | 21.5 °F | 1.04 in. |
| February | 6.2 °F | 26.4 °F | 1.09 in. |
| March | 18.6 °F | 38.8 °F | 2.13 in. |
| April | 31.7 °F | 53.5 °F | 3.23 in. |
| May | 44.2 °F | 66.5 °F | 3.97 in. |
| June | 54.5 °F | 75.7 °F | 4.76 in. |
| July | 58.5 °F | 79.8 °F | 3.95 in. |
| August | 56.2 °F | 77.7 °F | 4.47 in. |
| September | 47.8 °F | 70.2 °F | 3.63 in. |
| October | 35.6 °F | 56.0 °F | 2.97 in. |
| November | 23.8 °F | 40.1 °F | 1.83 in. |
| December | 11.0 °F | 26.7 °F | 1.38 in. |
| Annual | 32.6 °F | 52.7 °F | 34.45 in. |
| 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 : -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 |