Oconomowoc Lake, Wisconsin Hardiness Zones

According to the 2023 USDA Hardiness Zone Map Oconomowoc Lake, Wisconsin is in Zones 5a (-20°F to -15°F) and 5b (-15°F to -10°F). This is a change from the 2012 USDA Hardiness Zone Map which has Oconomowoc Lake in Zones 5a (-20°F to -15°F).

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