Melbourne in autumn 2016: much warmer than average

Melbourne experienced well above average autumn maximum and minimum temperatures in all suburbs. Autumn rainfall across Melbourne was close to average.

  • Warmest autumn on record for many suburbs
  • Rainfall in autumn was near average across the city
  • Strongest wind gust was 91 km/h at St Kilda Harbour on 3 May

A cool end to May wasn't enough to stop all Melbourne surburbs recording much warmer than average autumn mean maximum and minimum temperatures. Average maximum temperatures for autumn ranged from 1.3 °C above average at Viewbank to 2.1 °C above average at Essendon Airport. Mean minimum temperatures were further above average, ranging from 1.5 °C above average at Melbourne Airport and Bundoora, to 2.6 °C above average at Essendon Airport. Most of Melbourne recorded its highest autumn mean temperature on record and highest autumn mean daily minimum temperature on record. Several suburbs in Melbourne's north and east also recorded their warmest autumn mean daily maximum temperature on record. On 8 March, Scoresby, Moorabbin Airport and Coldstream each recorded their highest autumn temperature on record. The warmer than normal temperatures continued into the second half of autumn and almost all Melbourne suburbs recorded late-season minimum temperature records on 28 April (i.e. night time temperatures that high have never been observed that late in the season). At the end of May, temperatures cooled and on 31 May most Melbourne suburbs experienced overnight minima that were within 1 °C of their lowest May records.

Autumn rainfall across Melbourne was close to average, with each month (March, April and May) having close to average rainfall in most suburbs. Rainfall totals for autumn ranged from 80% of average at Essendon Airport to 105% of average at Avalon Airport. Ferny Creek was Melbourne's wettest observation site, recording 333.2 mm for autumn.

Melbourne's strongest recorded wind gust in autumn was 91 km/h at St Kilda Harbour on 3 May. There were several more days in mid-May during which maximum wind gusts over 70 km/h were recorded in Bayside suburbs and in Melbourne's north at Melbourne Airport.

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Extremes in autumn 2016
Hottest day 40.8 °C at Moorabbin Airport on 8 Mar
Warmest days on average 22.5 °C at Viewbank
Coolest days on average 18.3 °C at Ferny Creek
Coldest day 8.5 °C at Ferny Creek on 26 May
Coldest night −2.3 °C at Coldstream on 31 May
Coolest nights on average 9.4 °C at Coldstream
Warmest nights on average 13.4 °C at Melbourne (Olympic Park)
Warmest night 24.7 °C at Ferny Creek on 9 Mar
Warmest on average overall 17.7 °C at Melbourne (Olympic Park)
Coolest on average overall 14.7 °C at Ferny Creek
Wettest overall 333.2 mm at Ferny Creek
Driest overall 107.4 mm at Melbourne Airport
Wettest day 47.8 mm at Ferny Creek on 19 Mar
Strongest wind gust 91 km/h at St Kilda Harbour - RMYS on 3 May

Record highest autumn temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Scoresby Research Institute 39.8 on 8 Mar 39.6 on 8 Mar 1991 50 20.1
Moorabbin Airport 40.8 on 8 Mar 40.5 on 7 Mar 1991 45 20.3
Coldstream 39.9 on 8 Mar 39.2 on 15 Mar 2008 22 20.7



Record highest autumn mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Scoresby Research Institute 22.1 = 22.1 in 2007 57 20.1
Melbourne Airport 22.2 22.1 in 2007 45 20.3
Coldstream 22.4 22.3 in 2007 21 20.7



Record highest autumn mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Laverton RAAF 12.4 12.2 in 1974 72 10.1
Essendon Airport 12.6 11.9 in 2014 46 10.0
Melbourne Airport 11.9 11.8 in 1974 45 10.4
Moorabbin Airport 12.6 12.3 in 1974 44 10.7
Cerberus 11.8 11.7 in 2010 24 10.2
Coldstream 9.4 9.2 in 2010 21 7.3
Avalon Airport 11.8 11.3 in 2007 20 9.9

Highest autumn mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
autumn
Scoresby Research Institute 11.9 12.7 in 1989* 10.2

* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported.




Record highest autumn mean temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Laverton RAAF 17.2 16.9 in 2007 72 15.2
Scoresby Research Institute 17.0 = 17.0 in 1989 57 15.2
Essendon Airport 17.4 17.0 in 2007 46 15.1
Melbourne Airport 17.1 16.8 in 2007 45 15.4
Moorabbin Airport 17.3 17.0 in 2007 44 15.5
Bundoora (Latrobe University) 16.9 = 16.9 in 2007 31 15.3
Cerberus 16.6 16.4 in 2007 24 15.0
Coldstream 16.0 15.5 in 2010 21 14.0
Avalon Airport 16.9 16.7 in 2007 20 15.3



Summary statistics for autumn 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
autumn
2016
Diff
from
average
Highest for
autumn
2016
Mean for
autumn
2016
Diff
from
average
Lowest for
autumn
2016
Total for
autumn
2016
Average
for
autumn
Rank of
autumn
2016
Fraction of
autumn
average
Avalon Airport 22.1 +1.5 35.6 17 Mar 11.8 +1.9 −0.2 31 May 102.6 97.9 average 105%
Bundoora (Latrobe University) 22.2 +1.7 40.0 8 Mar 11.6 +1.5 0.2 31 May 132.7 151.0 average 88%
Cerberus 21.3 +1.6 36.5 8 Mar 11.8 +1.6 0.9 31 May 177.0 176.4 average 100%
Coldstream 22.4 +1.7 39.9 8 Mar 9.4 +2.1 −2.3 31 May
Essendon Airport 22.2 +2.1 40.4 8 Mar 12.6 +2.6 1.1 31 May 114.2 142.5 average 80%
Ferny Creek 18.3   35.6 8 Mar 11.1   4.5 4 May 333.2
Laverton RAAF 21.9 +1.7 40.5 8 Mar 12.4 +2.3 0.3 31 May 111.4 125.9 average 88%
Melbourne (Olympic Park) 22.0   38.9 8 Mar 13.4   3.6 31 May 140.8
Melbourne Airport 22.2 +1.9 40.2 8 Mar 11.9 +1.5 1.0 31 May 107.4 119.7 average 90%
Moorabbin Airport 22.0 +1.7 40.8 8 Mar 12.6 +1.9 1.9 31 May 163.4 175.7 average 93%
Scoresby Research Institute 22.1 +2.0 39.8 8 Mar 11.9 +1.7 0.7 31 May 209.6 211.2 average 99%
Viewbank 22.5 +1.3 39.9 8 Mar 11.9 +1.7 0.5 31 May 132.0 150.5 average 88%

Notes

The Seasonal climate summary lists the main features of the weather in Melbourne using the most timely and accurate information available on the date of publication; it will generally not be updated. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

A climate summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 10 am on Wednesday 1 June 2016. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages for individual sites are long-term means based on observations from all available years of record, which vary widely from site to site. They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of long-term average rain.

The Rank indicates how rainfall this time compares with the climate record for the site, based on the decile ranking (very low rainfall is in decile 1, low in decile 2 or 3, average in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.

The ACORN-SAT dataset is used for temperature area averages.

Further information

Media
(03) 9669 4057
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