I often find that a thermometer is a poor measure of temperature, in terms of our experience of the fishing day. Leaving aside the wind chill factor, which we all know well, a thermometer reading tells very little about what it feels like to be out. Just the other  morning, it was 13 degrees when I got up. On a winter’s morning, that is a very high overnight temperature, and one that on the face of it, should have the global warming guys saying “You see!”. But strangely it didn’t feel that warm at all. The thing is, that  as