Moving from hot weather place to 4 season place

Hi all, so I'm (31F) looking to move from a place that is basically hot 24/7/365 to somewhere that has 4 seasons. I am looking to build out my wardrobe for these other seasons but I'm not sure what essentials I should focus on that will best serve me for each season an in between seasons.

Not necessarily looking for specific style advice, just items to look out for when I'm shopping so I have the essentials to get me through the first year.

Would love suggestions for both male and female as my partner will also be needing to buy new things. TIA!