when the days start to get shorter like most places unless you grow indoors then you control tht not tryin to be a smartass but thts pretty much how it wrks as for a specific month r date cant tell little diffrent everywhere maybe someone lives in tht area will pop up and give you a better guestamation
Pot is a photoperiod plant. Seasonal temps and conditions have much less to do with flowering than days shortening. As the plants sense less hours of light it signals them to reproduce. Depends too on the strain you're cultivating. But guessing I would say in a few more weeks.