Best outdoor auto flower strain for east kooteneys bc?

Any body point me in the right direction for a half decent auto for the east kootneys in bc? It's always a hit and miss for growing regs do to the weather, I really only have July and August for suitable growing conditions. So I figured i would give 20 autos a try this yr. I would also be startin these plants indoor for about 3weeks before putting them outside.
thanks for your time guys