| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 53d - Lake Michigan Lacustrine Clay Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 53081 - Sheboygan, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 18 | 26 | 36 | 45 | 55 | 61 | 61 | 53 | 42 | 31 | 19 | 38 |
| Avg Max Temp (°F) | 28 | 33 | 42 | 52 | 64 | 75 | 81 | 79 | 72 | 59 | 45 | 33 | 55 |
| Avg Precip (In.) | 1.73 | 1.32 | 2.25 | 3.01 | 2.94 | 3.34 | 3.25 | 4.07 | 3.37 | 2.53 | 2.43 | 1.88 | 32.12 |