Can a cockroach egg die in cold weather?

Yes, cockroach eggs can die in cold weather, particularly if exposed to freezing temperatures. Cockroach egg cases, or oothecae, are somewhat resilient, but prolonged exposure to extreme cold can prevent them from hatching or kill the embryos inside. In general, temperatures below 0°C (32°F) are harmful to cockroach eggs. However, they can survive in milder cold conditions, as long as they find shelter.