It’s all relative, I suppose. To me it’s more about the sensible consequences of weather. If it rains 3” or 6” in a month it’s fairly inconsequential from an every day perspective. Now when vegetation starts wilting and wells are running dry, it’s another story! in terms of standard deviations, I’m not sure how much variability there is year to year, but if I were to guess I’d imagine 80% of normal is not particularly unusual. But that’s completely not data based, I have no idea!