Winter

The Shield Of Time,, PART FOUR, 13,211 B. C., I-XV, pp. 187-249.

This single long chapter when Wanda Tamberly and Ralph Corwin are in the past at the same time begins:

"Days dwindled into winter, blizzards laid snow thick over earth frozen ringingly hard, the brown bear shared dreams with the dead but the white bear walked the sea ice." (p. 187)

Brown bears hibernate; whites don't.

This is a collective viewpoint of people who live with the seasons and elements. Elsewhere in the Time Patrol series, chapters begin:

"Winter brought rain..."

-Poul Anderson, "Star of the Sea" IN Anderson, Time Patrol (Riverdale, NY, 2010), pp. 467-640 AT 3, p. 494.

"Wind rushed bitter..."

-5, p. 518.

"Suddenly springtime billowed over the land."

-7, p.530.

"Sleet hissed..."

-16, p. 601.

"New-fallen snow covered ash heaps that had been homesteads."

-19, p. 622.

Many chapters in The King Of Ys by Poul and Karen Anderson begin with wind and weather. I quoted them a while back when focusing on the prevalence of the wind in Poul Anderson's works.