Not to argue with Mitch, we all know he is knowledgeable, but IMHO never adjust your humidity by the temp you store your smokes at. Below is a brief quote
"To help set the records straight, we're going to observe a fine treatise on the subject from The Cigar Smoker's FAQ. The section on The Variable Humidity Myth articulates how there are a number of authorities claiming that relative humidity should move in an inverse direction from temperature: i.e. if you're maintaining a 70% RH humidor at 70 degrees, and the temperature falls to 65 degrees, the humidity should be raised to 75% RH to compensate. In fact, the humidity should stay constant regardless of temperature.
This is primarily because the tobacco within a cigar needs just enough moisture to keep it elastic, but not so much as to create expansion. This level is always around 70% independent of temperature. Why? Because we're not talking about how much moisture is physically in the tobacco (to keep the absolute moisture the same if temperature dropped, you would have to raise the humidity). What we are talking about is the sweet spot between tobacco leaves getting too brittle (68% RH or lower) and tobacco leaves beginning to swell (73% or higher). This sweet spot is always around 70% RH."
I would argue that the sweet spot is lower around 64%, but 50 is too low no matter what. I know some people say 60 is the sweet spot, but like I said 50 is just too low no matter the temp.
As for the temp thing, I wont get to into that too much, but I believe cooled storage is overrated, beetles can live and hatch at 65+, and allthough they do accelerate a bit at higher temps, if your sticks are below 78 and above 60 I would not worry too much, however quick swings should be avoioded. However many maybe most seem to disagree.