Hootenanny, the lyrics I posted are transcribed from Emmylou's recording (and they are not hard to understand, so I'm sure the transcription is correct).

As I posted, the song was written by Ruth Franks. I don't know if Emmyou modified them at all. Nor do I know if Delia Bell's version --
"We'll have sunshine in December
And Well have roses in the snow." -- is the original lyric.

(But since my dear little sister, who very recently went to join Rick Fielding in that angel choir, was named Delia, I definitely will have to check out Delia Bell's version if I can find it.