I'm not sure which years you grew up in Toronto, but historically there can be pretty large swings in the number of days of snow and inches of snowfall.
A minute of googling revealed this for Toronto snowfall [1]:
year days total snowfall
2010 6 18.0 in (45.7 cm)
2018 13 36.5 in (92.8 cm)
I calculate from the limited data on that web page (years 2010-2018) that the mean snowfall in Toronto is 36.6 inches and the standard deviation is 13.8 inches.
It looks like snowfall is increasing not decreasing. However, such limited data doesn't really reveal what's happening or going to happen in the future. There were only 9 data points given on the page I found. Someone can undoubtably find official historical data for Canada that will be more useful.
[1] https://www.currentresults.com/Yearly-Weather/Canada/ON/Toro...