The Stevenson Screen or thermometer screen is a standard shelter (from rain, snow and high winds, but also leaves and animals) for meteorological instruments, particularly
wet and dry bulb thermometers used to record
To allow comparability from screen to screen every aspect of construction and exposure is specified by the
World Meteorological Organization. For example, its doors opens towards the pole to minimize disturbance when reading in daylight. Double roof, walls and floor of white-painted wood provide screening, and extensive louvres maintain adequate ventilation on all but the stillest days.