There wasn't a speck of frost anywhere this morning - not on house roofs, grass or the road outside my house.
But, to my horror, I discovered a layer of ice had formed over my pond.
I gently broke the ice, so there were holes to allow oxygen to reach my fish.
I'm glad I did not remove too much weed from the pond, because the fish seem to like it.
I went to work at 7.50am and returned around 4.45pm. While I was away, ice re-formed over the pond.
Weather forecasts are predicting temperatures as low at -4 for the next two nights.
Looks like I'll have to check the pond for ice at regular intervals.