I don't disagree, just said the difference between 80 and 100 is not dramatic based on my own real experience. When the weather gets really bad , signal is lost anyway. Obviously my experience doesn't include snow, since I live in the tropics.
Since you live in the tropics your rain is probably stepwise from light to holy hell!!!!
I have seen low 80s versus 90s make a difference in Maryland. True when it drops to zero, it drops. But the same storms I had problems with last year with high 70s to low 80s are not a problem now that I am in high 80s low 90s. (almost everyone gets a range of 5-10 points on transponders).