New to this message board.

Over the last couple of months when we turn the hot water on, no matter which faucet it is in our house, the pipes from the basement make a loud vibration or moaning sound. It seems to occur exclusively at night (later evening). I am clueless when it comes to plumbing, so any help would be appreciated.

Background if helpful:
Live in state of NY, home was built in late 40's early 50's. We've lived in the house for five years and the water heater has not been replaced by us but was relatively new when we purchase the home within a couple of years prior.