The Garden Pond Blog

Pond and air temperatures this week

This graph tells an interesting story.

In the pond, its been an almost constant 3-4 C over the last week or so, despite the cold weather.

Outside in the open air its been freezing every night, altogether a much harsher world.

It hadn’t really dawned on me quite how surprisingly benign a place the pond was until somebody I was showing the graph to today pointed it out to me.

Its been generally much warmer than the surroundings, as well as more constant, despite the days of cold weather.

The vertical lines are set at midnight – usually, but not always, a little before the coldest part of the night.

This entry was posted on December 7, 2008 at 12:38 pm and is filed under Natural ponds. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.