The barometer must be hung on a wall or a post. Find a place outside for the rain gauge where there
will be no run-off of rainwater from trees, roofs or signs. There is a minimum distance official rain
gauges must be from obstructions such as these. If a nearby tree is five metres tall, the rain gauge
must be at least twice the distance (10 metres) away.
Your rain gauge can be set up in three ways, but make sure it is safe from theft and damage
(such as being trodden on).
- To make a freestanding rain gauge, place the cylinder inside the black holder so the spike points up.
This gives a flat base.
- To fix the rain gauge to an object such as the top of a fence, secure the black holder to the vertical
surface before inserting the cylinder.
- To put the gauge at ground level, reverse the black holder so the spike points down (main picture) and
stick it into the ground.
- At am each day, record the rainfall, referring to the scale (in millimetres) on the cylinder. Then
empty the cylinder. If you catch hail or snow, wait for it to melt before taking a reading.
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