What is a Stevenson screen?
Quick Answer
A Stevenson screen is a louvered box that shelters weather instruments from direct sun and rain while allowing air to circulate. It helps provide accurate readings of temperature and humidity.
The Full Story
The Stevenson screen was developed in the 19th century and became a standard shelter for thermometers, hygrometers, and other instruments. Its white-painted, ventilated design reduces heating from sunlight and limits direct exposure to precipitation. By keeping instruments shaded but well-ventilated, it improves the consistency of long-term weather records. Many meteorological stations around the world still use versions of this enclosure, even when digital sensors are installed.
Key Facts
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Suggested video title for this topic:
"The little white box behind accurate weather readings!"