Good question.
The short answer is no.
It is good that you are keeping records.
I can think of many things that might affect your results from a 4 star day to a 3 star day. It might be something simple like the fish feeding on a particular thing on a given day. For example, they might like eating worms on a 4 star day and weed on a 3 star day. It might be that a particular food source become more active or less active on a given day.
I call it match the hatch. Basically, it means matching your bait or lure and gear (and technique) to what the fish are eating. I would say if your results are better on a 3 star day, then you are matching the hatch on those days, but maybe missing something on a 4 star day.
Of course, tide is taken out of the equation for ponds (and non tidal lakes). That might have a slight affect. But I have not noticed any difference yet.
itsaboat mate...Life is just a boat and then ya marry one !