Snow has a bad reputation for being extremely cold. After all, it forms in temperatures that are below freezing, and it can cause a lot of damage if it’s present in larger quantities. However, sometimes snow can even act as a protective layer when it covers your lawn as a large blanket during the winter.
Ironically enough, the weather that allows snow to fall and stick to your soil is not typically that cold. Temperatures of -4 to 0 Celsius degrees are common for areas covered in snow. However, once temperatures fall even lower or remain below freezing for a long time, areas with little or no precipitation are actually more negatively affected than those where a lot of snow fell.
As temperatures below the surface of the soil are almost always warmer, seeds and grass roots are typically kept alive and healthy throughout winter. However, if the weather is dry and there is no snow cover to protect the soil, harsh temperatures can freeze your grass and the soil as well, sometimes even killing large parts of your lawn entirely. The best remedy is to prepare your lawn in Spring and Fall with a really good organic lawn care product to help it endure the colder elements.
As such, snow can actually help your lawn survive by protecting it from cold and freezing temperatures and preventing ice from forming around the grass blades.