Add to the previous answer. My area is Colorado Zone 5.
In my area, I am an early Spring pruner. I do prune them back a bit in winter so as to help protect the long canes from being whipped badly by the strong winter winds. However my true pruning for the coming growing and blooming season is done in early Spring which in my area is later April to early May. Check out this article I wrote as well please: https://www.gardeningknowhow.com/ornamental/flowers/roses/pruning-roses.htm