Sobieski, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.5 °C (low) to 12.2 °C (high). Annual precipitation averages 821.4 Millimeters. Sobieski is located in USDA Plant Hardiness Zone 5a. 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 | -12.6 °C | -3.7 °C | 39.88 mm |
| February | -11.9 °C | -1.9 °C | 29.97 mm |
| March | -6.2 °C | 4.2 °C | 46.23 mm |
| April | 0.1 °C | 11.4 °C | 80.26 mm |
| May | 6.7 °C | 18.7 °C | 89.15 mm |
| June | 12.3 °C | 24 °C | 99.57 mm |
| July | 14.8 °C | 26.6 °C | 92.2 mm |
| August | 13.9 °C | 25.7 °C | 87.88 mm |
| September | 9.4 °C | 21.6 °C | 85.85 mm |
| October | 3.2 °C | 14.1 °C | 76.71 mm |
| November | -2.6 °C | 6.3 °C | 48.51 mm |
| December | -8.7 °C | -0.7 °C | 45.21 mm |
| Annual | 1.5 °C | 12.2 °C | 821.42 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |