Is this a common thing to have happen? It seems like every year most of my hatchlings are male. I incubate at 88-89 degrees every year and this year I moved my incubator to a new spot and had temps between 87-90. So far it's looking like mostly males again this year.

Would a lower temp give me a better chance at hatching more females? I know that is common for lizards, not sure about pythons.