Brisbane,
Queensland Rainfall
Brisbane's
average rainfall is around 1200 mm. a year. Of course, rainfall
patterns vary across the large metropolitan area. The pattern is
for a dry period from April to September, which receives only around
400 mm., with a wet season from October to March getting twice as
much rain- about 800 mm.
Here's
how to calculate how much water you can collect from your roof.
Take the number of square metres of roof, muliply by the number
of millimetres of rainfall, to give the number of litres. e.g. If
you have 150 square metres of roof, and the average Brisbane rainfall
is 1200 mm, then you could collect over 180,000 litres a year. A
10mm rainfall would yield 1500 litres! In both cases, it's safest
to subtract 10% to allow for absorbtion, evaporation etc.
For
your information, here is the official Brisbane monthly average
rainfall graph, together with the average number of rain days, supplied
by the Bureau of Meteorology.
If
you live in Brisbane (or elsewhere in Queensland), we'd like to
help you with your water tank requirements. Learn more at our Brisbane
Water Tanks page. Learn about the Queensland grey
water system rebates coming July.
For
enviro-friendly tips and news, be sure to
and please, tell your friends about us!
Call
Enviro-Friendly today on (02) 6282 6266, and find out how we can
help you
"Save water, save energy, save
money, and save the environment."
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