Springbrook, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.7 °C (low) to 11.7 °C (high). Annual precipitation averages 848.4 Millimeters. Springbrook is located in USDA Plant Hardiness Zone 4a. 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 | -17.1 °C | -5.8 °C | 25.15 mm |
| February | -15.6 °C | -2.7 °C | 25.91 mm |
| March | -8.6 °C | 4.1 °C | 41.4 mm |
| April | -1.4 °C | 12.1 °C | 73.41 mm |
| May | 5.5 °C | 19.7 °C | 100.33 mm |
| June | 11.1 °C | 24.7 °C | 111.25 mm |
| July | 13.7 °C | 26.9 °C | 109.47 mm |
| August | 12.5 °C | 25.8 °C | 100.08 mm |
| September | 8.1 °C | 21.2 °C | 96.77 mm |
| October | 1.6 °C | 13.2 °C | 83.31 mm |
| November | -5.2 °C | 4.2 °C | 46.23 mm |
| December | -12.5 °C | -3.1 °C | 35.05 mm |
| Annual | -0.7 °C | 11.7 °C | 848.36 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |