That is pretty low humidity from what I remember. Bill and I both remember that you would take a shower, but you could never really dry off.
When we moved to Cali, the humidity was low and a mister would cool you down with a little breeze. In Houston and in Memphis it just made you into a puddle. 
Just a thought, we found that blackout blinds and some heavy drapes work wonders during the time the sun is shining in or to retain any cool temperatures you are able to obtain.
Best wishes for your comfort. 
Yes, that was low humidity. I've done the yard work many times with the heat index 115-120, thats brutal.
It has cooled off nicely the last few weeks, mid-70's in the early morning feels a touch cool and low 90's in the afternoon is very pleasant.
