Hey Idan..
What country? There are several Lapplands to choose from. Sweden, Norway and Finland all have counties called Lappland and also the Sapmi area is sometimes called Lappland. That Lappland is part of Sweden, Norway, Finland and Russia and is 388 350 km² (germany is 357 121 km²)
You may want to be a bit more specific on where you are planning to go in order to get accurate info
For sure, there is a lot of snow, open terrain and some winds in the "area" during winter season... =)