I live in Pittsburgh (i.e., Zone 6) and I started a compost bin in the 2nd week in October. (I know, I should have started earlier...)
It has a lot of kitchen scraps, maybe 60-70%, but I've also been composting leaves, dead plants from the fall cleanup, and recently, spent paper tissues from our recent colds to get some more "carbons" in the pile. It's still probably really nitrogen-rich.
I add some warm water with each addition, probably 2-3 times per week, and have been stirring it with a shovel about once a week. About a week or two after starting, I added some "compost starter" from a local garden store to make sure it had enough good bacteria, and until this week it seemed to be making good progress and pretty warm.
But now, we're getting into winter weather, with lows (and highs) below freezing. What are some good ways to keep it going "hot" during the winter, or should I even worry? Ideally, I'd like to have this finished in April to May-ish, so I can amend the garden beds in the spring.