Does snow stop play? No way!
Outside there was "dinosaur porridge" to be made along with snow pancakes. Clearing snow from the play house roof, snow angels, collecting snow, gathering icicles and seeing who could throw the highest snowball. The snow even made itself inside too, into the water table where Artic/Antarctic conditions were recreated for polar bears, penguins and other animals.
Jigsaws were popular too along with some story sacks (The Very Busy Spider, The Bad-Tempered Ladybird and The Old Lady Who Swallowed a Fly). Elmer collages, animal stencils and stickers, hot chocolate and brownie making, making guitars, being in a band, puppet shows, shape drawing, building a long road using carpet tiles and having sing-a-longs with musical instruments.