Burlington, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3 °C (low) to 14 °C (high). Annual precipitation averages 921 Millimeters. Burlington 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 | -10.7 °C | -1.8 °C | 46.48 mm |
| February | -9.1 °C | 0.4 °C | 44.7 mm |
| March | -4 °C | 6.4 °C | 53.85 mm |
| April | 1.7 °C | 13.7 °C | 93.47 mm |
| May | 7.7 °C | 20.1 °C | 104.9 mm |
| June | 13.4 °C | 25.6 °C | 118.62 mm |
| July | 15.9 °C | 27.8 °C | 92.96 mm |
| August | 15 °C | 27 °C | 93.47 mm |
| September | 10.6 °C | 23.3 °C | 87.12 mm |
| October | 4.3 °C | 15.9 °C | 73.91 mm |
| November | -1.6 °C | 8 °C | 60.45 mm |
| December | -7.2 °C | 1.2 °C | 51.05 mm |
| Annual | 3 °C | 14 °C | 920.98 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |