There's a lot of difference in the equipment that different cities own. When a place doesn't get much snow, it's not cost-effective to buy a lot of snowplows that just sit there, possibly never being used for several years at a time. When we had our big snow last December, they were comparing the amount of snow equipment, number of miles of roads that need to be cleared and number of days that they are needed between Seattle and Minneapolis, which are comparable in population. Minneapolis has about 20 times more plows per mile than Seattle does, but when you factor in the number of days, Seattle was actually ahead of Minneapolis. (plows per mile per day that they're needed)
As bad as it was for a couple of weeks right before Christmas, I doubt that we'll see any accumulated snow again this year.