The bar chart below shows the average rainfall for Australia by month for last year. The line shows the average rainfall for Australia by month for the last 40 years.

The given bar

chart

illustrates the typical

rainfall

during the

last

year

per month and the line

chart

provides information on a 40-

year

trend

of the

rainfall

in those months. Looking at the

overall

perspective, it is apparent that the

rainfall

for the first month reached a peak

and

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in Aug and Sep dropped to a low. In terms of

trend

, the rain volume decreased sharply from its peak in Jan to Apr and May and

then

went down slightly to its low in Aug and Sep, before rising over

last

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the last

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three months of the

year

.

According to

the bar

chart

, Jan accounted for the highest amount of

rainfall

at 70

mm

, followed by Feb and Mar at just below 60

mm

and 60

mm

respectively. Except for May when its rain volume (40

mm

)

in

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last

year

outnumbered the general

trend

valued at 30

mm

, and neither of the months from Apr to Oct experienced a value higher than 30

mm

.

Also

, the figures indicate that the

rainfall

went up sharply from 10

mm

in Sep to 60mm in the

last

month. In terms of compatibility of the bar

chart

and line

chart

, the general

trend

can be seen in the

last

year

except for Mar, May and June.