The Alberta and B.C. governments both collect data on snow pack / depth for use in monitoring and understanding the volume of water in different river basins. This is used for monitoring the environment, expected runoff, hydroelectricity and others. It also provides useful information for recreational skiers to help determine snow fall, snow pack, and temperature from some stations.
Here's a list showing a few weather stations that you might find useful. You can use the filter to find stations in areas you are interested in.