Drum brakes [and shimano's 'roller brakes'] will always work in any weather

rim brakes have much longer stopping distances

when they have to scrape the rims clear and dry first.

I have 20 year old sturmey archer drum hubs , never need servicing .

I have 26" studded tires for when the road ices over . [also offered in 700-35]

suggest a 3 speed with drum brakes on both wheels , get the nwe ones for the front it has a Dynamo in it too for light each time you ride , it's there.