Cool and dry climates, anywhere too high in latitude or elevation, are uninhabitable for the German cockroach. At the chilly temperature of 23˚F, 50% of German cockroaches die within 10 hours. At 14˚F, 50% die within the first hour.
How cold does it have to be to kill German cockroaches?
They find a place to hide. Temperatures between 15 and Zero degrees Fahrenheit will kill a cockroach, and they cannot breed at temperatures below 40 degrees. So, once temperatures start to drop, roaches look for a warm place to hide. A cockroach’s favorite place to spend the winter is inside your home.
What is the lowest temperature a cockroach can survive?
For example, cockroaches spend 75% of their time resting and can withstand temperatures as cold as 32 degrees Fahrenheit!
Will roaches leave a cold house?
Will roaches leave a cold house? Roaches, in general, do not like cold temperatures, so subjecting them to cold enough environments might force them to leave in search of warmer surroundings. That said, some species can tolerate lower temperatures as long as they have access to food and water.