What if the wet had been a freeze

Mr Gomm told us that 171,226,000 tonnes of rain fell on Sussex last week. I just wondered how deep it would have been had it been snow that fell rather than rain. 

The density of snow is given as anywhere between 50kg/m3 for freshly fallen snow to 300kg/m3 for settled snow. This makes the problem quite difficult and gives answers between 28cm and 172cm. 

Looking at my garden on Friday I'm not sure which I would have preferred