There is not one real answer to your question. There are many variables to consider. If you are using enhanced CO² then you need higher temperatures then if you don't. Example: Running CO² you need temperatures around 88f up to even 94f to help the plant absorb the extra CO² and transpire.

With out CO² 78 works best until the last month of flower then you can kick it up to 82-85f so they transpire more and produce more resin by volume.

In a perfect environment the temperature changes with each cycle the plant enters and exits. It's all about controlling the environment.

I have not even talked about humidity.

Sorry but there is no real answer only a range to consider.
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