This might sound like a rather odd request of me to make, and a bit of a long shot, but do any of you out there possess a 5″ rain gauge with a glass measure and some accurate digital kitchen scales? If so I would appreciate it if you could fill your measure up to the 25.4 mm mark and weigh the water in grammes as precisely as you can. I have an old copper gauge but no measure and Yorkshire born thought that weighing the rainfall in our kitchen scales might save me the cost of buying a glass measure!
I have done the maths but am not too confident about the result.
5″ diameter = 127 mm
Area of circle radius 63.5 mm = 12667.69 square millimetres = 126.6769 square centimetres
The weight of 1 cubic centimetre of water = 1 gramme
So I reckon that an inch of rain (25.4 mm) should weigh in at 2.54 x 126.7 = 321.8 grammes.
But am I right or even close?
Answers on a postcard to the usual address.
It turns out that the idea of weighing rainfall is not a new idea and has a lot of advantage from measuring it by volume.
No one bothered to reply to my plea which shows how little appeal this site has to the amateur meteorologist out there.
Either that or no one bothers to measure rainfall in the old fashioned way these days.
I think this table is correct.