The correct answer is Winter.
Winter is the season in Himachal Pradesh that is known for snowfall in higher regions. The snowfall usually starts in December and continues till February. The higher the altitude, the heavier the snowfall. The snowfall is a major tourist attraction in Himachal Pradesh.
Spring is the season that follows winter. It is a time of beautiful flowers and greenery. The temperature starts to rise in spring and the days become longer.
Summer is the hottest season in Himachal Pradesh. The temperature can go up to 40 degrees Celsius. The days are long and the nights are short.
Monsoon is the rainy season in Himachal Pradesh. It is a time of heavy rains and landslides. The temperature is moderate during monsoon.
I hope this helps!