I have yet to see the winter last 9 months. Typically starts in November and ends in March.
And nothing to do during the winter? Cozy up by the fireplace, pop a bottle of wine with a loved one. Read books. Make delicious food. Prepare for xmas, visit the various xmas markets, then there is new year which is a blast. And let's not forget the julebord-season during late November and first half of December!
January and February are dreary. I'll admit that.
Then there is winter vacation. You don't need to be a sportsman to enjoy pulling on a pair of cross county skis, head out with friends and family and create a nice campfire somewhere to grill hot dogs over. Don't forget the oranges and kvikklunch! Rent an airbnb somewhere with good access to either downhill slopes or cross-county trips. Spend the evening playing board games with friends, drinking and having it cozy by the fireplace again.
Late march / early April is springtime, and everyone is hungry for the sun. Easter arrives at some point. Again an excellent opportunity to go to some cottage and enjoy some time off.
But yeah, January and February are dreary.