Katy and the Big Snow by Virginia Lee Burton*

Katy, a red crawler tractor,  rescues the City of Geoppolis after a snow storm dumps piles and piles of snow upon it.
I especially liked the borders on some of the pages.
A classic!
*Highly recommend.
*Borrowed from the library.
Guided Reading Level: L (2nd grade)
Grade Level Equivalent: 2.9