there is work being done on producing a commercialy available 1 wire snow depth sensor, by Nafis
and I am adding support for it
(its based on the same routine as for the 1 wire soil moisture and leafg wetness sensors)
its a work in progress, and i will need to add routines to average the readings and put in temperature compensation
but for now you should get a voltage and temperature reading from the 1 wire sensor