Fleas and winter

[rowenj]

What temperature do we think that fleas would die at?
I say they don't die out in the house as heating is used before it gets very cold inside. Maybe I am wrong and they die at like 10c which will happen early in winter.
Does anybody have any idea about this?

[woofgang]

They don't die, the adults die but the eggs and larvae will live in the cold and continue their lifecycle when things warm up again.

[merton69]

Fleas can live in your carpet for up to a year. Purely because a typical household will have central heating keep in them warm through the cold months, waiting for the natural temperature to rise when summer comes.