V’ten Tal U’matar for those Returning Abroad in the Fall

I am in my second year in Israel but have to go back permanently soon, before Dec 4. I started saying “v’ten tal u’matar” on 7 [Mar]Cheshvan. Should I have? Should I stop now, when I get back to chutz la’aretz, or not at all?

Practicing Saying “V’ten Tal U’Matar"