Yellow jackets are far more tolerant of cold weather than bees, but they can’t survive a true winter. Yellow jacket workers die after 5-7 days of temperatures 45 degrees Fahrenheit or colder. The new queen, who will create next year’s colony, survives by burrowing deep into the ground where she hibernates until spring.

What temperature do yellow jackets stop flying?

At night, yellow jackets are typically inactive and stop flying out if the temperature drops below 50° F. If it gets colder than that, they look for places to stay warm, which means they’re not out flying around foraging for food.

How cold does it have to be to kill wasps?

This is not uncommon in the fall. During the onset of colder weather (60 to 70 degrees) most wasps die off.