Here you go, with a bit of math:
Hi! maybe this will help
Here's one made with a soda bottle:
Flashback to Science Fair! This one looks straightforward:
Here are step by step instructions for making a rain gauge: http://www.communityplaythings.com/resources/articles/2017/making-a-rain-gauge
Hello Sea. Cut the top off of a clear bottle. Then use a ruler to mark measuring increments starting about 2 inches from the bottom. Put some rocks in the bottom for weight, then fill the bottle with water to the 0 mark. This will calibrate your gauge. Invert the top of the bottle top and place it upside down in the bottle to act as a funnel. Place your bottle on a flat surface outside. Wait for the next time it rains and observe and record rainfall amounts. Good luck Sea.
Hi this is Peggy, hope this helps you make your own rain gauge. Showing results for how to make a rain gauge
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Making a Rain Gauge
Apr 11, 2017
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Hi Sea: These are so fun to make! Here are some sites that should give you some ideas:
Mark up a clear bottle in inches and set it out in a suitable place.
You can probably buy a plastic rain gauge for a few $$. We don't need one in our area. We only get about 7" of rain each year in eastern WA.
How To Make An Accurate Rain Gauge
Check with your local tv station. Many of them enlist viewers to measure rain and snow fall. Several in our area do. Some provide equipment or directions and you can provide accurate results! Good luck and stay safe!
Hello Sea49423651, here's a great video on how to make a rain gauge, hope it works for you!