Abstract:
[Summary adapted from the BOM Home Page]
This data set and addition documentation is available on-line.
Link to:
http://www.bom.gov.au/climate/averages/ Tables of climate averages prepared for each site provide averages
and other statistics for a number of elements including:
maximum and minimum temperatures;
temperatures and humidity (nominally) at 9am and 3pm;
... sunshine and evaporation where available; and
rainfall, for each calendar month.
Daily maximum temperature is recorded for the 24 hours from 9am, daily
minimum temperature and rainfall are recorded for the 24 hours up
until 9 am. A "rainday" is one with a daily rainfall of at least 0.2
mm. Daylight Saving Time, during the summer, has applied in most
Australian States since 1973 and this can affect the values of some
elements. Detailed information on observing practices followed under
DST is available.
All sites chosen have a minimum of 10 years of temperature data, but
no such criterion was applied to rainfall. Because of this, some sites
have rainfall statistics derived from a short record, much less than
the preferred minimum of 30 years, and these may not necessarily be a
reliable indicator of the longer term averages. They should be used
with caution. All statistics were calculated from data extracted from
the computer data bank of the National Climate Centre, Bureau of
Meteorology, in 1996.
The official Bureau site number (eg 014015 for Darwin Airport)
identifies each station, and the official Bureau name has also been
used here. This name may be based on a town name, a geographical
feature such as a cape, point, lake or mountain, or a local property
name. Because a site has the name of a town, this does not
necesssarily mean that it is situated in the town centre - it may be
on the outskirts or the town may be the nearest identifiable feature.
Graphs of the climate averages are also available for selected
stations.
The Bureau of Meteorology has a great deal more information available
from some 18,000 rainfall sites and over 1000 sites with other climate
data, such as temperatures at specific times of day. BOM can supply
data in a number of ways, such as ftp and on floppy disc. For further
details or to discuss your needs, please contact the Bureau of
Meteorology Regional Offices listed. 
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