Worcester County, Massachusetts Hardiness Zones

According to the 2023 USDA Hardiness Zone Map Worcester County, Massachusetts is in Zones 5b (-15°F to -10°F), 6a (-10°F to -5°F) and 6b (-5°F to 0°F). This is a change from the 2012 USDA Hardiness Zone Map which has Worcester County in Zones 5a (-20°F to -15°F), 5b (-15°F to -10°F), 6a (-10°F to -5°F) and 6b (-5°F to 0°F).

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