Innsbruck is considered to have somewhat moderate weather in comparison with other parts of the world.   This is a place which truly has all of the best of the seasons.   Each season is distinct, as opposed to places where the spring blends in to the summer and then in to the fall.   In Innsbruck, the spring is very much the spring and the summer is quite distinct from it.   This makes it possible to enjoy Innsbruck at any time of year, as long as it is kept in mind that each season must be enjoyed for its own unique qualities.
Summer often begins earlier in Innsbruck than in other parts of Austria.   This is due to the wind conditions of the area which are unique in that they are dry and warm winds, rather than cool breezes.   This is a nice change of pace for many travelers so early summer is an excellent time to plan for an Innsbruck vacation.   Late summer might be a time to avoid, as heavy rains often come at that time of year.
Travelers interested in winter sports will enjoy Innsbruck for the snowfall of the winter months.   Despite the snow, the winter sees a decent amount of sun, so visitors can enjoy getting out and playing in the powder relatively comfortably.   Updated weather information is available online at http://www.wunderground.com/global/st... or http://www.bbc.co.uk/weather/5day.sht... .