Is there a word (or a word combination) that would include both temperature and humidity, but not other parameters? Environmental conditions springs to mind, but I feel that it describes much more than just temperature and humidity.
EDIT: I forgot to mention, but I was looking for a word that would suit a more technical context. It had to be suitable for describing the temperature and humidity in rooms and similar spaces as a technical parameter for operation of various devices, rather than perception of people. I find climate, as suggested by fahad, to be a good choice. While in many cases it would mean much more, in a technical context it can mean just that - temperature and humidity.