Anyone else with a Greenhouse notice this?

[Kansas]

Saturday Morning, I woke up to see about a half inch of snow on the ground.
I thought about my greenhouse and how it might have helped it with that "blanket".
Sure enough, after having temps right at 60 degrees every other morning, it was SEVENTY in the greenhouse with the "blanket" of snow. With a temp outside of around 25 degrees, I was surprised it added that much heat.

[Barrie]

I don't recall specific temps but yes snow is a very good insulator. I do find that once temps like you've experienced, the snow won't stay on the pitched roof, it slides off and piles up around the sides.

Cheers, Barrie.

[Alchris]

I've noticed that the insulating value of the snow can keep the ground frost free for most of the winter if we get 3" or 4" before the first serious cold snap in November. In 2005/2006 I had panzies continue to stay green and bloom under the snow through winter. They continued to bloom after the snow melted in the spring.

Allen