Richland Center, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.7 °C (low) to 13.8 °C (high). Annual precipitation averages 964.4 Millimeters. Richland Center 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 | -13.4 °C | -2.8 °C | 30.99 mm |
| February | -11.7 °C | -0.3 °C | 29.72 mm |
| March | -5.5 °C | 6.5 °C | 51.56 mm |
| April | 1.2 °C | 14.1 °C | 107.44 mm |
| May | 7.5 °C | 20.7 °C | 115.57 mm |
| June | 13.4 °C | 25.9 °C | 149.35 mm |
| July | 15.5 °C | 27.9 °C | 124.97 mm |
| August | 14.4 °C | 27.1 °C | 112.52 mm |
| September | 9.4 °C | 22.9 °C | 90.17 mm |
| October | 2.7 °C | 16 °C | 63.25 mm |
| November | -3.6 °C | 7.3 °C | 49.28 mm |
| December | -9.6 °C | 0.2 °C | 39.62 mm |
| Annual | 1.7 °C | 13.8 °C | 964.44 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |