You can predict this for yourself pretty easily. Just remember the number of carbons:
methane - 1
ethane - 2
propane - 3
butane - 4
Most of the weight of the molecule is additional carbons.
Temperature is directly proportional to the average kinetic energy of each molecule (roughly speaking), so for a given temperature, the lighter molecules are going to be moving faster.
The faster they're moving, the more tendency they have to go into a gas phase.
Therefore, methane > ethane > propane > butane for cold environments.