I was 8. lived in Garnlydan at the time - about as far up the Ebbw valley you could get.
Our house was end of terrace, there was a bit of side garden, then a high wall, the over the road was the school field.
The snow was whipped up in the gap between the garden wall and the side of the house, resulting in a drift that reached the roof!. When it froze, we dug a tunnel, big enough to walk thorough. The back gardens all had gates into a lane - we had to dig a trench inside the fence to stop the mountain ponies walking over looking for food.
The crazy thing was that the snow came down over Christmas/ New Year, lasted for ages, then when it finally melted away we got a second heavy fall!
Somehow, despite there being steep roads to get to the estate, the milk was always delivered(albeit frozen), and the shops always seemed to have food to buy, - and the school stayed open throughout!
We were later given a a day off as reward, as one of only 3 schools in the county that did.
A few flakes these days and the whole country stops.