snow·fall 
/ˈsnoʊˌfɑ:l/ noun
plural snow·falls /ˈsnoʊˌfɑ:l/ noun : an amount of snow that falls in a single storm or in a particular period of time [count] ▪ The yearly snowfall here is over 30 feet! ▪ after a heavy snowfall [=after a large amount of snow has fallen] [noncount] ▪ 30 feet of annual snowfall ▪ The area is expecting heavy snowfall this weekend.
