Yes, I believe it is. I would first recommend getting a digital thermometer/hygrometer as those are more accurate. You can get one from the pet store for about $25. But hygrometers aside, if your snake has a dry shed, that would be a very big sign that your enclosure is not humid enough and your snake is dehydrated.
Always make sure your snake has a fresh bowl of water to lay in if he/she wants. And mist your tank a couple of times a week. You can get a cheap spray bottle from the dollar store if money is an issue and those work just fine.![]()