We get close to 0% humidity here, though recently it has been 110+ with about 30% humidity and let me tell you that sucks.
The humidity is not unwelcome as it helps with the plants (especially the trees) - ie they retain their moisture just a little better, but it used to be that when it was this hot humidity was really low, approaching that 0% number which would mean that the heat was at least somewhat bearable, now it is just awful.
The problem is that right now we are not getting much below 90F at night which means that I have not watered in a few weeks. We had some rains (which gives a temporary cool down and some relief) but quite a few plants are looking very unhappy, but for the reasons recently discussed elsewhere the only things I have put a hose next to for about 30 minutes each has been a few trees and shrubs.
