Humidity is a battle during the summer and winter.
In the summer you’re trying to get rid of it. No one likes to go to bed dripping wet. In the winter you’re trying to keep it because your furnace is literally drying your house out keeping you warm.
A correctly sized AC system will remove humidity from your house. Along with a correctly sized humidifier recovering the humidity loss during the winter months.
Usually in the summer an indoor relative humidity level is good in the mid 40% range. Figuring an indoor temp of 70-74 in this area.
In the winter it does range on how cold it is and how often your system is running but a good average is 20-30%.