| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 53b - Kettle Moraines | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 53105 - Burlington, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 14 | 24 | 35 | 45 | 55 | 61 | 59 | 50 | 38 | 28 | 16 | 36 |
| Avg Max Temp (°F) | 26 | 32 | 43 | 56 | 68 | 78 | 82 | 80 | 73 | 60 | 45 | 32 | 56 |
| Avg Precip (In.) | 1.6 | 1.33 | 2.34 | 3.65 | 3.2 | 4.04 | 4.02 | 4.23 | 3.35 | 2.44 | 2.64 | 1.89 | 34.72 |