Thanks reg, but I'm at 52F and I don't really want to go below 50 and I & DD need a long term solution.
This morning my hygrometer read 94% RH, so enough, turned off power, pointed fan inside and blew it out for 15 min, and plugged unit back in.
Noticed that upper inside walls of freezer were damp but not lower sides or bottom or top, this must be where the cooling coils are inside the walls causing condensation from air there. At end of blowing fan with ambient 60% RH (Houston in summer is subtropic high humidity) air into freezer, gauge had only dropped to 82% RH. I've also noticed that effect before when I take a digital hygrometer from cold to warmer location like when take a soda pop from fridge to outside that you will get condensation on it giving making the gauge read too high until dries off. So that's why I think the still high reading. Or I didn't blow it out for long enough.
Makes sense but now that freezer is plugged back in, the gauge reads 91% RH !?! When air is cooled it can hold less moisture giving it a higher RH reading, like when you get higher humidity in early morning than in sunny afternoon. Could it be that cooling air in freezer has same effect pushing the reading back up?
Reg, I realize this different to what you said, could it be that your lower RH at lower T is because your fridge is pumping harder and thus removing more moisture from air?
Problems problems, fridge has way too low humidity, sealed freezer has too high. Goldilocks story.