Melbourne in July 2015: Rainfall average to above average; some frosty mornings

Rainfall was generally average to above average across Melbourne during July. There were several cold days and some cold nights.

  • Rain on most of the days
  • Coldest night at Coldstream with −4.5 °C
  • Strongest wind gust 85 km/h at Avalon

Rainfall across the Melbourne metropolitan area in July was average to above average. Melbourne (Olympic Park) recorded 20 raindays for a total of 58 mm for the month. The highest daily total at Olympic Park was 28mm on the 13th. The wettest spot in the greater Melbourne area was Ferny Creek in the Dandenong Ranges, with 135 mm for the month including 36 mm on the 13th.

Most days during the month saw cooler-than-average maximum and minimum temperatures. For the month as a whole, maximum temperatures were below average, a result of the several strong cold fronts that crossed the city bringing cold air. At Melbourne (Olympic Park) the lowest maximum temperature was 9.8 °C recorded on the 14th, while the highest maximum temperature during July was 17 °C on the 21st, when the approaching cold front directed northerly airflow across the city.

Minimum temperatures during the month were above average in the northern and western suburbs, and below average in the southeast of the metropolitan area. A high pressure system that developed over the State resulted in low minimum temperatures across the city on the 19th; Melbourne (Olympic Park) recorded a minimum temperature of 0.6 °C, while at many places temperatures dropped below zero. Some sites had their lowest July temperature on record.

Further information

Media
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Extremes in July 2015
Hottest day 18.3 °C at Moorabbin Airport on the 21st
Warmest days on average 13.5 °C at Avalon Airport
Coolest days on average 8.6 °C at Ferny Creek
Coldest day 4.4 °C at Ferny Creek on the 14th
Coldest night -4.5 °C at Coldstream on the 20th
Coolest nights on average 3.2 °C at Coldstream
Warmest nights on average 6.8 °C at Melbourne (Olympic Park)
Warmest night 11.5 °C at Moorabbin Airport on the 22nd
Warmest on average overall 10.0 °C at Melbourne (Olympic Park)
Coolest on average overall 6.4 °C at Ferny Creek
Wettest overall 134.8 mm at Ferny Creek
Driest overall 42.0 mm at Avalon Airport
Wettest day 35.8 mm at Ferny Creek on the 13th
Strongest wind gust 87 km/h at Melbourne Airport on the 30th

Highest July total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
July
Melbourne Airport 66.4 68.5 in 1990 35.8



Record lowest July temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Cerberus -2.9 on the 19th -1.7 on the 24th in 1994 24 6.3
Avalon Airport -2.5 on the 20th -2.3 on the 22nd in 2006 21 5.1
Coldstream -4.5 on the 20th = -4.5 on the 17th in 1998 21 3.9



Summary statistics for July 2015
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
July
2015
Diff
from
average
Highest for
July
2015
Mean for
July
2015
Diff
from
average
Lowest for
July
2015
Total for
July
2015
Average
for
July
Rank of
July
2015
Fraction of
July
average
Avalon Airport 13.5 -0.6 17.0 24th 4.7 -0.4 -2.5 20th 42.0 37.7 average 111%
Bundoora (Latrobe University) 12.8 -0.6 17.0 21st 5.2 -0.4 -3.5 19th 71.6 49.6 high 144%
Cerberus 13.0 -0.7 17.3 21st 5.7 -0.6 -2.9 19th 73.8 73.2 average 101%
Coldstream 12.6 -0.7 16.5 21st 3.2 -0.7 -4.5 20th 83.4 63.7 high 131%
Cranbourne Botanic Gardens 12.8 -0.6 17.1 21st 5.5 -0.7 -0.5 20th 76.8 70.5 average 109%
Essendon Airport 13.0 0.0 16.4 22nd 5.5 +0.2 -1.5 19th 64.2 43.6 high 147%
Ferny Creek 8.6   12.5 21st 4.2   1.0 15th 134.8
Laverton RAAF 13.3 -0.4 16.3 22nd 5.5 +0.5 -1.5 20th 44.2 38.5 average 115%
Melbourne (Olympic Park) 13.3   17.0 21st 6.8   0.6 19th 58.0
Melbourne Airport 12.7 -0.4 15.7 22nd 5.1 -0.3 -1.0 20th 66.4 35.8 v high 185%
Moorabbin Airport 13.1 -0.6 18.3 21st 6.3 +0.1 -1.0 20th 77.8 61.7 high 126%
Scoresby Research Institute 12.7 -0.3 16.6 21st 5.6 -0.2 -1.6 19th 91.8 73.6 high 125%
Viewbank 12.8 -1.2 16.9 21st 5.2 -0.8 -2.1 19th 68.0 50.2 high 135%

Daily maximum temperatures for July 2015
12345678910111213141516171819202122232425262728293031
Avalon Airport15.612.412.112.816.913.312.715.814.514.912.012.012.810.19.812.712.911.510.815.116.416.016.817.013.810.013.314.313.613.113.9
Bundoora (Latrobe University)12.111.210.710.414.09.914.314.112.814.013.511.912.010.010.312.111.911.212.914.217.016.115.614.412.511.813.314.813.212.213.4
Cerberus14.412.211.210.515.312.012.414.811.714.913.412.812.39.910.613.113.511.512.013.917.315.315.815.213.610.112.012.713.412.612.8
Coldstream14.111.59.59.613.010.015.014.512.414.312.811.110.19.210.113.212.011.512.413.816.515.216.313.512.510.913.114.312.912.413.2
Cranbourne Botanic Gardens13.911.610.59.614.311.513.514.112.914.013.212.012.19.012.512.111.012.013.717.116.015.914.912.99.812.713.313.411.612.8
Essendon Airport14.612.010.99.915.310.514.014.312.514.013.411.613.19.59.712.411.911.513.214.116.116.415.014.512.711.713.415.213.111.613.6
Ferny Creek8.97.15.86.39.47.210.410.98.810.88.58.17.34.46.38.27.17.69.19.412.511.511.810.08.96.27.89.79.27.79.4
Laverton RAAF15.112.112.410.616.312.213.115.413.014.312.811.912.89.810.012.513.011.212.714.316.016.315.816.213.511.013.614.913.912.713.9
Melbourne (Olympic Park)15.011.912.010.614.911.514.214.813.414.313.112.312.79.810.512.312.311.512.114.717.016.616.115.013.311.613.914.414.012.314.0
Melbourne Airport14.511.910.910.115.411.413.814.312.213.413.010.812.09.69.312.011.911.113.113.815.515.714.614.412.510.913.115.113.611.413.8
Moorabbin Airport14.611.811.39.914.211.314.314.413.214.213.612.012.29.810.213.012.611.511.214.418.316.516.615.113.610.412.613.413.812.313.3
Scoresby Research Institute14.011.49.49.313.510.514.614.412.313.612.511.411.58.810.012.811.711.413.313.716.615.715.914.412.910.512.814.513.212.113.5
Viewbank14.211.410.49.913.610.615.414.112.813.913.511.811.89.111.012.311.811.312.813.616.916.115.414.312.611.412.714.613.112.013.5
Values are the maximum temperature, usually in the 24 hours from 9 am on the day indicated,
and typically occurred in the afternoon of that day.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period

Daily minimum temperatures for July 2015
12345678910111213141516171819202122232425262728293031
Avalon Airport7.98.73.26.67.38.96.53.24.64.66.22.15.47.12.55.25.56.6-1.3-2.51.29.01.55.57.07.14.84.53.93.11.3
Bundoora (Latrobe University)5.44.26.46.86.87.01.76.16.610.01.57.34.46.26.24.5-3.5-1.74.511.22.26.57.46.04.98.06.17.31.0
Cerberus7.67.64.57.97.58.67.30.95.74.38.34.27.98.45.46.28.15.6-2.9-2.32.410.92.43.38.48.05.97.06.07.84.3
Coldstream3.88.50.25.56.63.85.8-1.91.24.19.9-0.43.56.14.55.02.60.1-4.0-4.5-0.110.8-0.80.86.86.61.65.83.66.3-1.3
Cranbourne Botanic Gardens6.46.73.36.05.98.77.62.25.86.69.24.56.16.23.15.84.94.1-0.1-0.53.69.54.05.98.25.85.46.47.57.63.5
Essendon Airport5.68.83.57.07.26.66.81.76.17.39.81.95.06.74.25.55.55.9-1.5-1.44.210.52.88.87.86.34.67.15.87.63.5
Ferny Creek5.74.73.22.94.35.34.45.36.96.77.22.72.63.21.02.73.62.41.53.06.87.95.97.24.82.51.32.45.04.92.4
Laverton RAAF7.28.23.06.18.47.17.22.15.67.39.91.55.47.12.15.86.26.8-1.3-1.54.211.02.87.87.66.34.15.18.17.61.3
Melbourne (Olympic Park)7.410.35.97.38.27.57.44.96.57.610.93.46.18.15.86.67.36.10.61.84.211.45.17.69.48.16.27.98.48.64.1
Melbourne Airport4.98.02.55.97.06.56.71.87.25.99.21.15.46.52.44.85.63.50.0-1.04.910.25.16.06.45.94.26.35.26.62.1
Moorabbin Airport8.210.04.96.77.68.28.21.75.77.810.64.86.48.14.96.35.55.4-0.4-1.03.111.53.87.09.18.06.47.87.97.52.8
Scoresby Research Institute6.79.14.16.36.88.57.81.47.58.79.93.54.96.95.05.75.31.5-1.6-0.96.411.02.45.37.87.14.26.76.87.61.4
Viewbank5.69.34.55.87.17.37.22.24.17.08.70.93.47.14.85.56.65.2-2.1-0.81.711.22.04.38.17.24.87.36.87.51.6
Values are the minimum temperature, usually in the 24 hours to 9 am on the day indicated,
and typically occurred that morning.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period

Daily rainfall for July 2015
12345678910111213141516171819202122232425262728293031
Avalon Airport - 1.2 - 0.8 - 0.8 - - - 1.0 5.0 9.2 1.0 2.8 - 2.4 3.0 0.2 - 0.2 4.0 - 0.2 4.0 5.2 0.6 - 0.2 - 0.2
Bundoora (Latrobe University) - - 2.0 - 1.8 3.8 1.6 - - - 0.5 1.4 30.8 5.4 5.4 - 4.0 1.0 - 0.2 - 3.8 - 2.2 3.4 3.3 0.4 - - - 0.6
Cerberus 0.4 7.0 2.0 0.2 0.8 - 0.6 - - - 1.0 2.6 16.6 2.2 2.4 - 2.2 1.2 - - 0.2 0.4 - - 3.8 5.8 13.0 5.8 - - 5.6
Coldstream - 1.4 2.6 - 4.8 - 1.4 - 0.2 - 0.8 4.6 18.6 18.2 10.4 - 1.8 1.6 - 0.2 - 2.6 - 2.6 5.0 1.0 1.4 3.0 - - 1.2
Cranbourne Botanic Gardens - 5.2 2.2 1.5 0.9 - - 0.2 - - 2.0 2.0 22.2 6.4 2.8 - 3.2 1.7 0.1 - - 0.6 0.4 0.4 6.8 11.6 3.0 1.2 - - 2.4
Essendon Airport 0.2 1.4 1.2 - 3.0 4.4 1.6 - - - 0.8 2.0 24.0 3.0 4.8 - 5.2 1.2 0.2 - - 3.0 - 1.6 2.8 2.4 0.2 - - - 1.2
Ferny Creek 0.2 5.4 3.8 - 8.2 - 1.2 - 0.2 - 2.0 2.0 35.8 22.4 11.2 - 10.6 5.0 - - -
1.2 1.8 4.8 5.0 1.8 8.6 0.6 - 3.0
Laverton RAAF - 0.4 0.2 0.6 1.8 4.0 1.0 - - - 1.4 3.8 14.4 1.2 3.4 - 1.2 2.4 - - 0.2 1.0 - 0.2 2.8 1.6 1.4 - - - 1.2
Melbourne (Olympic Park) - 0.6 2.6 - 2.0 1.6 2.2 0.2 - - 0.2 1.6 28.4 3.8 3.6 0.2 2.4 0.4 - - - 1.6 - 1.2 0.8 3.2 0.8 - - - 0.6
Melbourne Airport - 1.0 0.2 - 3.0 2.0 1.4 - - - 1.6 2.6 27.2 1.6 7.0 - 1.0 4.0 - - - 4.2 - 1.4 4.0 2.6 0.6 - - - 1.0
Moorabbin Airport - 3.4 3.6 0.2 2.6 0.6 1.6 0.2 - - 1.4 2.0 24.8 15.4 2.4 0.2 0.8 0.8 - - - 0.4 0.4 0.6 5.6 6.8 0.6 - - - 3.4
Scoresby Research Institute - 1.6 3.4 - 3.4 - 0.8 - - - 0.6 1.4 29.0 15.6 9.4 - 5.8 3.8 - 0.2 - 1.4 0.2 1.4 4.0 6.0 1.2 0.8 - 0.2 1.6
Viewbank 0.2
3.6 - 4.2 1.6 3.4 - - - 0.6 1.0 26.6 3.4 7.6 - 2.6 0.8 - 0.2 - 2.8 - 2.4 2.6 3.0 0.6 - - - 0.8
Most values are the precipitation in the 24 hours to 9 am on the day indicated. Days marked with → are part of a longer accumulation, which is shown on the final day.
Values over 100 mm have been rounded to the nearest whole millimetre.
Days marked with - have a rainfall report of zero; days left blank have no rainfall report (which often indicates no rain fell).
Rainfalls coloured
according to the amount
0 1.0 5.0 10.0 15.0 25.0 50.0 100 150 200 300 400 600 millimetres

Notes

The Monthly 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 9 am on Monday 3 August 2015. 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
Enquiries