You're looking at it all wrong. The fish are missing your jig, you're not missing them
I generally have more misses this time of year than I do in the spring and fall. That being said, I also see it vary from day to day, and pile to pile. For example, if we get a weird pressure system come through, the fish might slap at it as opposed to engulfing it.
I also see a lot more short strikes if the feeding periods are heavier during the morning/evening times. The mid day bite may be a little slower as the fish really aren't actively eating, and are striking simply out of reaction to a jig being in their face.