What temp is "room temp" for PNS storage?

[afboundguy]

What is considered room temperature for PNS ProBio and DeepCycle storage? My basement gets down to 55-60 °F in the winter and wasn't sure if that was acceptable? @Kenneth Wingerter

 

[Peace River]

There are multiple definitions of room temperature such as 68-77F (20-25c). Although it is not technically room temperature, IMHO 50F should be fine as long as it is dry and there are not quick temperature swings.