I have noticed this year more than most years that my pool water is dropping more than usual or is it?. I don't know if it is my imagination or I have a leak? I have combed the pool and cannot find nothing leaking, other than a really slow drip that I know about, I mean I probably lose more water skimming the pool than this leak.

I live in the North East and we have had little rain, if any and it was hot and humid for a couple of weeks, but has cooled off to about the 80's and low humidity. I have backwashed a couple times this week, but really quick cause I vacuumed. Also nobody has been in the pool this week. So what is normal evaporation? It seems like it dropped about 1" 1/2 -2" on it's own this week? I actually have a plain view of sight from my desk to the skimmer and I watch it daily. Help!!