We have a few jack fruit trees and normally we see them appearing around November getting ready for harvesting around April/May
There is no sign of them showing up yet. And appearing late would mean they would be ready for harvesting much later which is our monsoon season. There is no demand for jack fruits that get wet in the rain.
Nature these days is acting pretty weird and we have no other alternative but to take what it gives.
Do you have jack fruits where you live?