Melbourne in June 2014: Warm overall with a stormy end

Melbourne's warm start to the year continued into June, with both mean daily maximum and minimum temperatures generally a degree or two above average for the month. The Melbourne Regional Office site equalled its 2008 record high mean mininmum temperature, and a few other sites in the greater Melbourne area also reported record or near-record high mean June temperatures. It wasn't until the end of the month that daytime temperatures began to drop well below average.

Rainfall was generally above average for June. The passage of several troughs, fronts and low pressure systems throughout the month brought moderate falls to the Melbourne area. Cerberus reported its highest June daily rainfall on record on the 29th with a total of 40.6 mm, while Rhyll reported its wettest June on record with a total of 126.6 mm.

On the 24th, a low pressure system passed near the south of Port Phillip Bay producing significant rainfall and strong, gusty winds. The highest wind gust reported during this event was 128 km/h at Cape Otway, while Melbourne's bayside suburbs experienced wind gusts of up to 110 km/h. The passage of this deep low also coincided with high tides, with flooding experienced in much of the coastal Melbourne area and along the Yarra River.

  • Low pressure system impacted the Melbourne area on the 24th, producing strong winds and flooding
  • Above average mean monthly maximum, minimum and mean temperatures
  • Above average monthly rainfall

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Extremes in June 2014
Hottest day 19.2 °C at Avalon Airport on the 11th
Warmest days on average 15.8 °C at Melbourne Regional Office
Coolest days on average 10.7 °C at Ferny Creek
Coldest day 6.8 °C at Ferny Creek on the 29th
Coldest night 0.0 °C at Coldstream Comparison on the 9th
Coolest nights on average 6.3 °C at Coldstream Comparison
Warmest nights on average 9.9 °C at Frankston AWS
Warmest night 13.1 °C at Frankston AWS on the 3rd
Warmest on average overall 12.8 °C at Melbourne Regional Office
Coolest on average overall 8.9 °C at Ferny Creek
Wettest overall 146.6 mm at Ferny Creek
Driest overall 42.6 mm at Essendon Airport
Wettest day 40.6 mm at Cerberus on the 29th
Highest wind gust 111 km/h at St Kilda Harbour - RMYS on the 24th

Record highest June daily rainfall
Highest daily rainfall
in June 2014 (mm)
Previous wettest
for June
Years of
record
Cerberus 40.6 on the 29th 38.0 on the 10th in 1995 24




Record highest June mean daily minimum temperature
Mean daily minimum
temperature
for June 2014 (°C)
Previous warmest
for June
Years of
record
Average for
June
Melbourne Regional Office 9.8 = 9.8 in 2008 158 6.9
Cerberus 8.1 = 8.1 in 2008 21 6.8

Highest June mean daily minimum temperature for at least 20 years
Mean daily minimum
temperature
for June 2014 (°C)
Most recent June
at least this warm
Years since
warmer
Average for
June
Essendon Airport 8.4 8.7 in 1957* 26 5.9
Moorabbin Airport 8.7 9.1 in 1991* 22 6.7

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




Record highest June mean temperature
Mean daily
temperature
for June 2014 (°C)
Previous warmest
for June
Years of
record
Average for
June
Cerberus 11.6 = 11.6 in 2008 21 10.5

Highest June mean temperature for at least 20 years
Mean daily
temperature
for June 2014 (°C)
Most recent June
at least this warm
Years since
warmer
Average for
June
Essendon Airport 11.7 12.9 in 1957* 26 9.8
Bundoora (Latrobe University) 11.6 11.8 in 1991* 22 10.0
Moorabbin Airport 12.0 12.4 in 1991* 22 10.4

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




Summary statistics for June 2014
Maximum temperatures
for June
(°C)
Minimum temperatures
for June
(°C)
Rainfall
for June
(millimetres)
Mean for
June
2014
Diff
from
average
Highest for
June
2014
Mean for
June
2014
Diff
from
average
Lowest for
June
2014
Total for
June
2014
Average
for
June
Rank of
June
2014
Fraction of
June
average
Avalon Airport 15.5 +0.8 19.2 11th 7.4 +1.6 1.3 11th 58.6 38.7 high 151%
Breakwater (Geelong Racecourse) 15.4   18.8 11th 8.0   2.4 11th 69.4
Bundoora (Latrobe University) 14.9 +1.0 17.0 10th 8.1 +2.0 2.9 9th 47.7 57.5 average 83%
Cerberus 15.1 +1.0 16.9 21st 8.1 +1.3 2.7 9th 126.4 75.5 high 167%
Coldstream 14.5 +0.5 17.4 4th 6.4 +2.3 0.1 9th 80.8 66.8 high 121%
Coldstream Comparison 14.5   17.5 4th 6.3   0.0 9th 80.8
Cranbourne Botanic Gardens 14.7 +0.8 17.0 20th 8.0 +1.3 3.3 9th 93.1 81.6 average 114%
Essendon Airport 15.0 +1.3 18.5 10th 8.4 +2.5 2.9 9th 42.6 40.2 average 106%
Ferny Creek 10.7   14.0 1st 7.0   2.4 24th 146.6
Frankston AWS 14.5 +0.9 16.4 10th 9.9 +1.2 6.1 9th
Laverton RAAF 15.2 +1.0 18.3 10th 8.0 +2.2 1.7 9th 46.8 38.8 high 121%
Melbourne (Olympic Park) 15.4   18.7 4th 9.6   5.6 9th 48.8
Melbourne Airport 14.7 +1.1 18.1 10th 8.0 +1.8 3.0 9th 43.4 39.9 average 109%
Melbourne Regional Office 15.8 +1.7 19.0 10th 9.8 +2.9 6.5 30th 49.6 49.5 average 100%
Moorabbin Airport 15.2 +1.0 18.3 4th 8.7 +2.0 2.0 9th 70.4 56.8 high 124%
Scoresby Research Institute 14.6 +1.1 17.1 4th 8.2 +1.9 3.4 9th 83.0 70.6 high 118%
Viewbank 15.0 +0.6 17.9 4th 7.9 +1.6 3.1 9th 50.0 56.2 average 89%

Notes

A Monthly Climate Summary is prepared to list the main features of the weather in the greater Melbourne area 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, usually published in the fourth week of the month.

A Climate Summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 9 am on Tuesday 1 July 2014. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages 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.

Further information

Media
(03) 9669 4057
Enquiries