Wisconsin Climate Overview
Wisconsin's climate varies significantly from the Lake Michigan shore to the inland areas. Milwaukee benefits from lake moderation while Madison and inland areas experience more extreme temperatures. Container gardening gives Wisconsin gardeners the flexibility to maximize the productive but compact growing season.
Regional Climates
Milwaukee/Lake Michigan: Zone 5b. 155-175 day season. Lake-moderated.
Madison: Zone 5a. 145-165 day season. More continental.
Green Bay/Northeast: Zone 4b-5a. 140-160 day season.
Northern Wisconsin: Zone 4a. 120-140 day season. Short, intense.