My Best Guess for those KY Lake Mayflies would be the month of MAY.Just remember that unless you live there it's hard to actually fish the hatch. They may hatch the first week in May or the Second week in May. You never know as the weather is never the same two years in a row. It's probably water temperature dependent too. Eggs that are laid on the bottom last May have been growing as Mayfly Nymphs and they mature on a schedule a year later. But they must have good access to food and the water temperature and the conditions have to be right for them to hatch on time.And remember that there are many different species of Mayflies. Each one can hatch at different times. I use to fish on KY lake right after school got out and that was late May and early June. I remember the Tiger Lilies blooming along the side of the road as we drove to the lake. That was early June. I also remember fishing for crappie at night off the dock and seeing the Yellow Mayflies all over the place.I think that finding the bluegill's spawning would be a better thing to shoot for. Bluegill spawn in Late May or Early June. They like the water temp in the upper 70's I think. They spawn after the crappie usually and well after the bass spawn.
Quote Originally Posted by tr186man View Post
I know it is a little early considering winter isn't here yet, but I am in the process of looking at next year vacation. Wife has to put in for her days off after the first of the year. Planning on hitting KY Lake with the wife and son. I would like to hit the mayfly hatch in order to hopefully get my son to hooked on fishing. He's been several times and caught some fish, but the virus just hasn't took hold yet. I figure my best shot would be to get him on some big 'gills and/or just some good fast pace fishing (i.e. catching). I am planning on fishing the Johnathan Ck area or if the weather is calm, crossing the lake to Sugar, Turkey and few other bays. When, typically, does the mayfly hatch happen? I know it depends on weather, but on average when does it occur?

Thanks.