In winter months, gas backpacking stoves don’t perform as well, so you’ll probably want to bring a stove that can run on liquid fuel. While alcohol stoves, like Toaks’ ultralight Titanium Siphon Alcohol Stove, are very reliable in cold weather, they are not as efficient as a white gas stove. A good option is something like the MSR Whisperlite Universal Camp Stove, which is a multifuel stove that you can use year-round. Regardless of the type of stove you bring, always bring a backup and plenty of fuel—you’ll need it to boil water as well as cook.
In terms of lighting your stove—or campfire, if you’re in a place that allows them—bring good old-fashioned kitchen matches in a waterproof container. Like the stoves, lighters that run on gas just don’t perform that well in winter. You may also want to consider an electric plasma lighter, like the Sparkr Mini from Power Practical. It’s convenient, windproof and waterproof. However, you will also have to bring along a way to charge it, as the battery may not hold a charge as long in cold weather.
