In the first snowfall by james russell lowell which lines contain figurative language

The First Snowfall is one of my favourite poems ever. (:

The last line of the fourth stanza there's a simile;

"And the sudden flurries of snow-birds, Like brown leaves whirling by."

A metaphor is in stanza seven, "Again as I looked through the snow-fall, And the thought of the leaden sky-"

I gave a couple examples, and you can always find more online elsewhere.