Is it sultry or sultry?

It can't be said that the climate is sultry. Let's just say it's sultry. Because climate refers to the weather characteristics of a place for many years, during this period, after four seasons, there will be changes in temperature, rainfall and so on in each season, so it is impossible to be sultry. Weather refers to a place where the sunny weather changes during the day after the storm, so it makes sense to say that the weather is sultry.