Bayside, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.6 °C (low) to 13.8 °C (high). Annual precipitation averages 887.5 Millimeters. Bayside is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.9 °C | -0.9 °C | 43.43 mm |
| February | -7.4 °C | 0.7 °C | 39.88 mm |
| March | -2.7 °C | 6.1 °C | 51.05 mm |
| April | 2.6 °C | 12.4 °C | 99.82 mm |
| May | 8.3 °C | 19.1 °C | 100.08 mm |
| June | 14 °C | 24.6 °C | 110.74 mm |
| July | 17.5 °C | 27.4 °C | 92.46 mm |
| August | 17.2 °C | 26.8 °C | 91.69 mm |
| September | 13 °C | 22.9 °C | 81.53 mm |
| October | 6.6 °C | 15.8 °C | 72.64 mm |
| November | 0.2 °C | 8.4 °C | 54.1 mm |
| December | -5.4 °C | 1.9 °C | 50.04 mm |
| Annual | 4.6 °C | 13.8 °C | 887.46 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |