temperature sensor should ideally be 1.25m above the ground and if possible in a screen - if it is exposed to the sun you are just measuring the thermal capacity and emissivity/absorptivity of the sensor casing rather than the air temperature. I've made my own using white polystyrene packaging and it seems to compare well with the local official station.
There is a handy hole in the brickwork just level with DS2's head...probably about a meter or so in height. Its also out of direct sunlight. If you picture front door with a porch, it's in the porch part, except that i don't have a porch, more like a sheltered step
We (as a family) were interviewed for a new magazine simply called 'Weather', I think!
We had just arrived in Scotland, after a 10 hour drive, through the night. Some scraggy lookin' interviewer, arrived at our caravan, whilst we were unloading and proceeded to ask us why the hell we would want to holiday somewhere so cold and wet!
We were in the beautiful, beautiful Highlands of Scotland fgs! Look around you, you dozy mare!
Anyway. I don't know why I told you this or frankly why I highjacked your thread to do it, but there you go!