snow tires isn't just for snow.
It is also beneficial for icy conditions, especially patches of "black" ice.
Down here in Jersey, I see more icy conditions than snow. But, I also do drive up north where there is a lot of snow.
If you decide to use all-seasons.. that's fine. Then keep a set of chains in the trunk and know how to use them, just in case that you actually need to use them.