What can I do to control environment

[sboyle9]

What can be done to control the environment inside my grow tent during different extremes of outdoor weather? I just completed my first grow in northern Michigan. We can have some pretty extreme outdoor temperatures ranging from 90 degrees in the summer with high humidity at times to very extreme cold in the winter. So I run a spiderfarmer sf4000 and 2 6 inch ac infinity fans for intake and exhaust. So what can I do to keep the temperature and humidity in check when the intake fan is bringing in either extremely hot or extremely cold temperatures from outside. I just started growing in spring of this year so I don’t have any experience growing during the winter months and would really appreciate your feedback.

[Gingerbeard]

Your best resource for starting...

How to Make the Best Growing Environment | Grow Weed Easy

[homegrown]

Not sure but isnt Michigan legal? Why are you drawing air from outside? Just maintain a semi constant temp/humidity in the room where your tent is situated. De-humidifier in the room, and a good filter is all you should need.