Hi David. Thanks for the listen and very much for your observations.
The idea of the song is to compare winter with old age.
The winter of ones years.
Although winter may be cold and wet it is still possible to enjoy it and anticipate summer ahead.
Also I realised at the funeral of a friend that even with it's aches and pains life is pretty good.
Hope this helps. Sorry it's not explained better in the lyrics. Cheers.

https://soundcloud.com/tuigorge