Thoreau writes in his journal:
P.M.—To Cliffs and Walden and Hubbard’s Close.
The hillside and especially low bank-sides are now conspicuously green. Almost did without a fire this morning. Coming out, I find it very warm, warmer than yesterday or any day vet. It is a reminiscence of past summers. It is perfectly still and almost sultry, with wet-looking clouds hanging about, and from time to time hiding the sun. First weather of this kind. And as I sit on Fair Haven Hill-side, the sun actually burns my cheek; yet I left some fire in the house, not knowing behind a window how warm it was . . .