"Average snowfall" refers to the amount of snow that typically falls in a particular area over a specific period of time, usually a year. It gives an idea of how much snowfall can be expected on average in that location. Full definition
Arctic temperatures are nothing compared to the biting wind and an annual average snowfall of more than 200 inches. (automobilemag.com)
«In some regions, it is possible for average snowfall to decrease, but the snowfall extremes actually intensify.» (sciencedaily.com)
The last time the North Atlantic experienced a strong negative phase, in the winter of 1995 - 1996, the East Coast was also hammered with above average snowfall. (ldeo.columbia.edu)