I always think there's a gradual transition from well defined hail, to soft hail, where it's cloudy & a bit crumbly, to snow pellets. But that's just the way I see it. Soft hail, as Len says, is still noisy on the velux, snow pellets makes a quiet 'crunchy' noise, snow is silent.
-1.6C last night. 0.2C at 9am. Despite it reaching 6.9C yesterday, it remained very icy where the sun didn't reach, and the north facing gutter of the garage is still nearly full of soft and partially melted / refrozen snow pellets, from the previous night.
The SST is still near 11C, but the Jubilee pool is 5C. All change here by next weekend.
Graham
Penzance