use your weather station
GaryG in MD
The difference between intellectual knowledge of facts and practical application sometimes evades me.
I turn outside, and finish outside, and we have been having rain every day since the dawn of history (or so it seems), so when I saw the blank spot on the radar (right after a big storm went by), I had to get the lathe out!
I just learned the hard way that when my personal "weather station" says the humidity is 80% outside, at 7:30 p.m., nearing dusk, I should not be spraying lacquer even though I still have enough light to see what I'm doing. I knew that well enough so that I could have answered the question if somebody had asked me, but nobody asked, so I did it anyway. Duh!
Lesson learned -- always the hard way, of course.
A quick Google of the subject says 65% max. I can believe that.
...GG