The weather in Himachal Pradesh in March starts to get milder as the state enters the spring season. Daytime temperatures start to rise, ranging from around 10°C to 20°C, while nighttime temperatures remain cool.

March marks the end of the winter season and the beginning of spring. The snow begins to melt, making travel in the higher altitude regions easier. The days start to get longer and the snow cover starts to recede, making it easier to travel in the higher altitude regions. The greenery starts to appear as the trees and plants start to bud.

The state is located in the western Himalayas, which means it experiences a high altitude climate. This results in a much cooler temperature than the neighboring states of Punjab and Haryana.

It is important to note that the weather can be unpredictable and can change suddenly. It is always a good idea to check the forecast and be prepared for any weather conditions.

Overall, March is a great time to visit Himachal Pradesh for those who enjoy milder weather and want to experience the transition from winter to spring. It is also a great time for photography and sightseeing as the state is covered in greenery and is very beautiful. The milder weather also makes it more comfortable for trekking and other outdoor activities.