Frost dates by location
| Location | Zone | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|---|
| Green Bay | 5b | May 7 | Oct 9 | 155 |
| Milwaukee | 6a | Apr 27 | Oct 20 | 176 |
| Madison | 5a | May 1 | Oct 10 | 162 |
| Kenosha | 6a | Apr 25 | Oct 21 | 179 |
Zones in Wisconsin
Bottom line: a statewide planting date is a compromise nobody's garden actually
lives at. Wisconsin's last-frost spread is
12 days wide. Use the location nearest you.
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