They do make a dehumidistat that will reduce humidity when the temp is low. They are connected to a dehumidifier.
Originally Posted by MetroAir
Check out the Santa Fe / Ultra-Aire dehumidifiers.
Over-cooling causes condensation in walls and on the ducts. Plus the colder temps are uncomfortable.
Bear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
Use +Merv 10 air filter. -Don't forget the "Golden Rule"