I think Barometric Pressure is a factor. High pressure days often are blue bird skies and no wind. Deer hunt? Same deal. Fish and most wildlife get just as aggravated by these kind of days as most humans.

That doesn't mean you can't catch fish but you'll likely fish harder with long periods of no fish. Least that's the way I've experienced these days over 50 yrs of fishing.

If one has to juggle work, family and cutting the grass, and I'm one of those, I don't think I'm going to stay home because it's a high pressure day. I'm looking for opportunities to go fishing not excuses to not fish.