Melbourne in December 2016: mostly average rainfall; warm days and nights

Rainfall was mostly close to average across Melbourne during December. Mean maximum and minimum temperatures were warmer than average in most of Greater Melbourne suburbs.

Average to above average rainfall

  • December rainfall was generally average across the Melbourne metropolitan area, except in the north where it was above average
  • Bundoora was the wettest location, receiving a total of 134.1 mm during the month
  • The highest daily total, 108.0 mm, also at Bundoora, was recorded to 9am on the 30th and was associated with the passage of a low pressure trough on the afternoon on the 29th which resulted in strong and widespread showers
  • Bundoora and Bonbeach had their highest December daily rainfall on record
  • Melbourne (Olympic Park) had 12 days with rainfall and a monthly total of 39.6 mm, almost half of which fell to 9am on the 30th

Above average temperatures

  • Most Melbourne sites had warmer than average mean maximum and minimum temperatures
  • Mean maximum temperatures were generally between 1.0 and 2.0 °C above the average, while mean minimum temperatures were closer to average with most suburbs within 1 degree of average
  • For Greater Melbourne, the hottest temperature during December was 38.8 °C recorded at Essendon and Laverton on the 28th, while the coolest night saw 2.8 °C at Coldstream on the 19th
  • At Melbourne (Olympic Park) daily temperatures during December exceeded 30 °C on 8 days
  • The warmest temperature recorded at this site during the month was 38.2 °C on the 28th, in a hot northerly airstream directed over the city by a slow-moving high pressure system over the Tasman Sea and a low pressure system over the Bight
  • The following night was also warm and the Olympic Park site recorded the overnight temperature of 27.0 °C on the 29th; this was the warmest minimum temperature recorded in Greater Melbourne
  • Some sites with more than 20 years of data had their warmest December night on record

Strong winds and flooding

  • The strongest wind gusts, 89 km/h, were recorded at Fawkner Beacon and Wallan on the 28th, in the hot northerly airstream
  • A low pressure trough preceding a cold front crossed Melbourne on the 29th bringing storms and heavy rainfall; these resulted in flash flooding, some riverine flooding as creeks and the Elwood Canal broke their banks, extensive storm and water damage and disruptions to road and rail travel

Further information

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Extremes in December 2016
Hottest day 38.8 °C at Essendon Airport on the 28th
38.8 °C at Laverton RAAF on the 28th
Warmest days on average 26.9 °C at Viewbank
Coolest days on average 22.6 °C at Ferny Creek
Coldest day 13.1 °C at Ferny Creek on the 9th
Coldest night 2.8 °C at Coldstream on the 19th
Coolest nights on average 11.2 °C at Coldstream
Warmest nights on average 14.6 °C at Melbourne (Olympic Park)
Warmest night 27.0 °C at Melbourne (Olympic Park) on the 29th
Warmest on average overall 20.1 °C at Bundoora (Latrobe University)
20.1 °C at Essendon Airport
Coolest on average overall 17.2 °C at Ferny Creek
Wettest overall 134.1 mm at Bundoora (Latrobe University)
Wettest day 108.0 mm at Bundoora (Latrobe University) on the 30th
Strongest wind gust 89 km/h at Fawkner Beacon on the 28th
89 km/h at Wallan (Kilmore Gap) on the 28th

Record highest December daily rainfall
New record
(mm)
Old
record
Years of
record
Bonbeach (Carrum) 60.0 on the 30th 56.4 on the 23rd in 2000 61
Bundoora (Latrobe University) 108.0 on the 30th 80.4 on the 28th in 1999 38



Record highest December daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
December
Essendon Airport 26.2 on the 26th = 26.2 on the 20th in 2015 47 11.8
Bundoora (Latrobe University) 26.5 on the 29th 26.0 on the 7th in 1994 33 12.4
Coldstream 24.7 on the 29th 21.7 on the 22nd in 2000 23 9.6



Summary statistics for December 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
December
2016
Diff
from
average
Highest for
December
2016
Mean for
December
2016
Diff
from
average
Lowest for
December
2016
Total for
December
2016
Average
for
December
Rank of
December
2016
Fraction of
December
average
Bundoora (Latrobe University) 26.7 +1.8 37.6 28th 13.4 +1.0 6.0 19th 134.1 64.3 v high 209%
Cerberus 23.7 +1.3 36.3 28th 12.2 +0.3 4.9 3rd 41.4 52.8 average 78%
Coldstream 26.4 +1.2 35.7 25th 11.2 +1.6 2.8 19th 48.2 54.6 average 88%
Cranbourne Botanic Gardens     36.5 28th 11.7 0.0 6.2 19th 76.4 65.1 average 117%
Essendon Airport 26.6 +2.1 38.8 28th 13.5 +1.7 6.5 19th 54.6 50.9 average 107%
Ferny Creek 22.6   31.9 25th 11.9   5.7 9th 117.0
Frankston AWS 23.3 +0.8 35.0 25th 13.4 -0.4 8.8 19th
Laverton RAAF 25.6 +1.8 38.8 28th 13.1 +1.1 5.6 18th 36.6 45.6 average 80%
Melbourne (Olympic Park) 25.5   38.2 28th 14.6   8.8 19th 39.6
Melbourne Airport 26.3 +1.7 38.2 28th 12.7 +0.7 5.5 19th 77.0 48.9 high 157%
Moorabbin Airport 25.5 +1.6 38.0 28th 13.5 +0.9 7.4 19th 72.0 59.3 average 121%
Scoresby Research Institute 26.3 +2.3 36.2 25th 13.1 +1.3 6.5 19th 90.4 75.2 average 120%
Viewbank 26.9 +1.2 37.0 28th 13.5 +0.9 7.7 15th 103.2 65.9 high 157%
Wallan (Kilmore Gap) 24.2 +2.1 33.7 28th 11.5 +1.3 4.6 18th 19.8 44.5 low 44%

Daily maximum temperatures for December 2016
12345678910111213141516171819202122232425262728293031
Bundoora (Latrobe University)25.021.825.031.822.821.828.523.816.819.120.532.935.819.620.626.221.720.830.122.521.933.735.537.130.229.037.633.831.225.1
Cerberus19.619.120.030.419.718.922.522.216.616.718.832.232.118.218.023.619.117.229.819.919.119.026.131.134.622.527.936.334.124.523.4
Coldstream27.223.325.431.221.421.827.022.717.219.522.330.834.519.921.526.420.819.628.222.521.124.533.334.535.732.328.933.633.729.426.9
Cranbourne Botanic Gardens23.121.020.831.320.025.018.017.019.531.933.819.325.020.816.828.520.519.929.536.027.436.534.025.225.2
Essendon Airport23.722.823.232.322.721.929.024.118.319.321.033.836.521.219.925.322.519.930.923.520.921.730.035.737.230.829.438.834.030.724.9
Ferny Creek21.919.322.627.518.817.623.218.413.115.519.127.630.616.418.522.417.615.324.518.417.219.830.031.131.927.825.930.129.325.822.6
Frankston AWS22.319.122.230.919.018.925.019.614.916.820.231.330.617.719.224.717.417.627.517.918.621.629.930.835.032.827.924.921.5
Laverton RAAF22.421.821.632.721.719.525.323.617.819.320.234.136.519.619.026.221.519.930.822.519.820.326.535.437.124.728.538.835.126.124.1
Melbourne (Olympic Park)21.921.623.931.721.520.828.323.217.318.819.332.836.319.318.625.520.917.530.221.519.920.026.334.936.329.329.838.233.527.823.8
Melbourne Airport24.622.723.231.722.121.228.423.418.319.320.933.035.919.919.724.121.518.630.923.220.422.032.034.936.630.028.038.234.731.225.2
Moorabbin Airport21.920.523.732.320.319.827.423.117.518.020.133.235.218.720.424.620.118.929.920.319.522.328.535.937.929.429.838.035.026.122.6
Scoresby Research Institute25.122.424.931.322.922.027.623.317.019.321.932.335.419.321.425.921.119.428.622.321.124.133.735.036.229.829.036.133.628.925.4
Viewbank26.123.325.531.923.622.928.023.918.520.322.832.836.121.022.127.522.420.429.523.621.924.734.635.330.829.337.033.831.326.5
Wallan (Kilmore Gap)24.720.723.527.020.520.524.519.615.017.820.328.832.918.418.321.419.417.426.021.018.922.031.231.333.230.325.433.729.430.626.7
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 December 2016
12345678910111213141516171819202122232425262728293031
Bundoora (Latrobe University)13.310.77.49.816.410.97.115.79.011.012.37.516.215.48.38.014.88.36.014.212.114.011.514.114.723.818.019.926.520.316.8
Cerberus10.19.14.99.515.712.15.714.210.011.312.16.512.714.210.211.212.49.47.214.112.212.77.713.015.918.415.820.819.117.913.5
Coldstream9.410.94.46.416.59.84.211.48.810.511.64.811.215.25.15.312.15.22.813.09.88.98.211.612.417.518.020.324.720.516.6
Cranbourne Botanic Gardens10.79.96.49.215.49.67.912.58.611.58.215.314.67.513.47.86.212.712.19.59.214.416.316.318.018.514.9
Essendon Airport10.611.68.410.216.211.58.315.18.811.011.98.017.015.010.79.313.97.86.514.011.614.012.714.514.626.217.419.426.119.316.6
Ferny Creek10.19.77.112.212.08.37.813.65.76.88.78.718.711.36.67.311.55.97.011.98.38.710.318.919.523.615.419.523.116.812.8
Frankston AWS11.213.310.011.815.812.810.115.310.011.211.615.210.510.714.210.38.813.913.911.912.314.916.417.722.219.216.9
Laverton RAAF8.510.57.89.516.114.27.316.09.211.412.27.516.015.212.17.313.25.65.615.110.614.511.714.915.123.517.518.823.119.315.6
Melbourne (Olympic Park)12.913.09.912.716.912.810.515.410.011.212.910.716.515.711.79.715.110.08.814.413.514.612.516.216.425.418.020.327.020.117.3
Melbourne Airport9.110.86.59.115.711.47.115.18.210.911.77.816.414.59.07.912.66.75.513.89.613.811.714.613.525.516.718.724.919.216.0
Moorabbin Airport10.311.07.79.715.611.48.616.210.411.912.89.717.215.77.98.214.810.87.414.113.112.810.214.816.725.116.820.122.319.517.1
Scoresby Research Institute11.610.47.310.215.810.115.79.210.312.28.215.215.26.87.514.78.26.513.812.012.410.413.915.423.917.620.522.719.516.7
Viewbank13.012.07.810.116.511.614.98.910.912.57.814.415.27.78.414.78.414.011.813.412.515.215.617.819.126.419.716.7
Wallan (Kilmore Gap)9.99.45.911.912.38.37.311.65.47.39.08.218.211.06.07.211.84.66.612.58.19.410.617.717.621.315.218.819.420.412.6
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 December 2016
12345678910111213141516171819202122232425262728293031
Bonbeach (Carrum) - - - - 1.4 - - 1.5 13.0 - - - - - - - - - - 5.0 - - - - - - - 4.2 - 60.0
Bullengarook East - - - - 0.4 - - 24.6 4.0 - - - - - - - - - - 2.0 - - - - - - 3.8 2.6 3.6 29.6 -
Bundoora (Latrobe University) - - - - 5.4 - - 3.4 8.6 0.2 - - - - - - 0.2 - - 2.4 - - - 2.8 - - 1.0 1.8 - 108 0.3
Burnside - - - - 0.8 - - 3.8 4.0 - - - - - - - - - - 1.8 - - - - - - 2.2 1.2 - 11.8 -
Cerberus - - - - 0.8 - - 10.8 7.6 - - - - - - - - 0.8 - - 0.2 - - - - - 0.4 3.4 1.0 16.4 -
Coldstream - - - - 2.2 0.2 - 0.8 20.2 1.0 - - 0.2 - - - - 0.8 0.2 1.0 0.6 - - - - - 2.8 1.0 0.2 17.0 -
Cranbourne Botanic Gardens - - - - 0.6 - - 9.0 11.1 1.0 - - - - - - 0.8 - 8.0 - - - - - - 0.9 2.0 43.0 -
Essendon Airport - - - - 3.0 - - 3.0 5.2 - 0.6 - - - - - - - - 2.0 0.2 - - 0.8 0.2 - 1.6 2.0 - 35.8 0.2
Ferny Creek - 0.2 - - 3.4 0.2 - 2.0 30.4 1.6 0.4 - - - - - - 2.0 0.2 3.4 4.2 - - - - - 2.4 2.2 0.2 64.2 -
Kinglake West - - - - 1.0 - - 3.4 19.0 1.4 - - - - - - - - - 3.0 - - - - 1.4 - - 2.2 -

Lancefield



2.0

17.6








0.6






3.8 19.0 -
Laverton RAAF - - - - 0.4 - - 4.4 2.6 - - - - - - - - - - 3.0 - - - - - - 2.0 0.8 0.2 23.0 0.2
Main Ridge - - - - - - 1.4 13.0 3.6 - 0.6 - - - - 4.2 - - 3.2 - - - - 1.0 2.2 2.0 7.2

Melbourne (Olympic Park) - - - - 2.4 - - 2.2 6.6 0.2 1.0 - - - - - - - - 3.0 0.2 - - 0.8 0.2 - 1.6 1.0 - 20.4 -
Melbourne Airport - - - - 0.8 - - 3.2 2.2 - 1.2 - - - - - - - - 2.2 - - - 1.0 - - 1.4 1.4 - 63.4 0.2
Mitcham
- - - 2.8 -
0.8



- - -


- 2.6 1.6 - - - -
2.6 1.0 0.2 45.2 0.2
Moorabbin Airport - - - - 1.8 - - 3.2 9.8 0.2 0.2 - - - - - - - - 2.8 0.2 - - 0.2 0.4 - 2.6 0.8 0.6 49.2 -
Mornington - - 0.8 - - 5.0 9.0 - - - - - - - - - - 3.0 - - - 3.8 15.1
Oakleigh (Metropolitan Golf Club) - - - - 1.5 - - 4.6 12.6 - 1.0 - - - - - - - - 3.8 0.4 - - - - - 3.0 1.6 - 42.6
Pakenham - - - - 1.6 0.2 - 2.2 15.6 1.4 0.8 - - - - - - 1.4 - 2.0 1.0 0.2 - - - - 2.0 2.4 - 22.2 -
Preston Reservoir
- - - 5.6 -
0.2



- - -


- 1.2 1.4 - - - 0.4
1.2 2.6 0.2 66.2 0.2
Romsey - - - - 0.8 - 19.0 - - 0.4 - - - - - - - - 0.8 - - - - - - 4.0 - 63.2
Rosebud (Country Club) - - - - - - - 9.2 2.9 - - - - - 0.6 - - 2.0 - 2.6 - 0.4 - - - - 0.2 2.0 1.0 14.0
Scoresby Research Institute - - - - 1.6 - - 0.8 19.8 1.4 - - - - - - - - - 2.8 0.8 - - - - - 1.8 0.8 - 60.6 -
Springvale (Sandown) - - - - 1.2 - - 4.0 14.6 - - - - - - - - - - 3.0 1.5 - - - - - - 3.2 - 38.2
Springvale Necropolis - - 1.8 - - 2.1 17.0 - - - - - - - - - - 3.5 - - - - - - - 4.0 - 38.0
Viewbank - - - - 5.2 - - 0.8 7.4 - - - - - - - - -
1.6 0.6 - - 0.8 0.6
1.6 1.6 - 83.0 -
Wallan - - - - 0.4 - - 2.2 5.2 - - - - - - - - - - 1.2










Wallan (Kilmore Gap) 0.2 - - - 0.6 - - 4.6 5.2 - - - - - - - - - - - 0.4 - - - - - 0.8 1.4 0.2 6.2 0.2
Yan Yean
- - - 1.0 -
0.2



- - -


- 0.2 - - - 5.4 -
0.8 1.6 - 20.6 -
Yarra River @ Warrandyte - - - - 2.8 - - 0.8 8.6 0.4 - - - - - - - - - 1.8 0.4 - - 0.2 0.2 - 2.0 1.2 0.2 61.4 0.2
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, generally published on the first working day of each month, 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. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This statement has been prepared based on information available at 1 pm on Tuesday 3 January 2017. 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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
(03) 9669 4057
Enquiries