Stoughton, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.2 °C (low) to 13.9 °C (high). Annual precipitation averages 966.7 Millimeters. Stoughton is located in USDA Plant Hardiness Zone 5b. 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 | -11.6 °C | -2.6 °C | 39.62 mm |
| February | -9.8 °C | -0.4 °C | 42.16 mm |
| March | -3.9 °C | 6.4 °C | 55.37 mm |
| April | 2.2 °C | 13.9 °C | 98.3 mm |
| May | 8.8 °C | 20.7 °C | 111.25 mm |
| June | 14.3 °C | 26 °C | 136.14 mm |
| July | 16.7 °C | 28.1 °C | 102.36 mm |
| August | 15.6 °C | 27.1 °C | 110.24 mm |
| September | 10.8 °C | 23.2 °C | 92.2 mm |
| October | 4.3 °C | 15.8 °C | 73.41 mm |
| November | -1.8 °C | 7.6 °C | 60.45 mm |
| December | -7.7 °C | 0.4 °C | 45.21 mm |
| Annual | 3.2 °C | 13.9 °C | 966.71 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |