Be it in winter, summer, autumn, or spring, Machines were known to be able to survive all forms of weather conditions, ranging from extremely cold, to extremely hot.
This was greatly in part due to the materials used to ensure that they were not like normal robots.
Frozen joints, overheating, such conditions were impossible for Machines. Even the most popular form of attack at a certain point in time, EMP, aka Electromagnetic pulse would only deal minimal damage to them.
Except concentrated to a high amount, it would only help to energize them.
It wasn't bad to say that the Machines were versatile in every way.
But obviously with this versatility a few things had to be sacrificed, one of which was their capability to spawn as many as possible.
