But the first example is not very useful either. That journalist could be replaced by a fully automated thermometer. Or weather stations with an API. Context is useful: “It is 35 degrees Celsius, and we’re predicting that it will stay sunny all day” will help you plan your day. “It is 35 degrees Celsius today, finishing off an unseasonably warm September” could provide a little info about the overall trend in the weather this year.
I don’t see any particular reason that journalists should follow your definition, which you seem to have just… made up?