How warm is it?
The only way to find out is to measure it, the human body is useless for monitoring temperature.
During cold weather, have you every come into the house and thought it was lovely and warm. Then only a few hours later you start fiddling with the thermostat, as you start to feel cold. But its still the same temperature you have just got used to it.
Simple maximum minimum thermometers are okay but you have to be in the greenhouse to read them and there is no recorded history, they only give you a snap shot.
