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Too Late to Migrate?
In order to fly, monarchs need temperatures of at least 50°F when sunny and at least 60°F when cloudy. Cold fall temperatures mean late-migrating monarchs are less likey to reach Mexico. However, they can travel quickly when conditions are favorable. A monarch was tagged on October 9, 2008 in New Jersey and recovered on October 12th in Georgia. The butterfly had traveled 558 of miles in three days.

Map of Tagged Monarch Recovery