Perfectly reasonable. The example I quote is I think from Tom (Limetech) himself, where he had a server in an unheated garage, spun up the drives and a large number of them failed. I forget the details, but it demonstrates that spinning up a dead cold drive is not healthy for it. 30c is warmish, 35 is just a little more warmish, NOTHING compared to spinning up a drive at 5c.
You didn't state the environment in which you keep the server, so I gave my best answer given limited info.