Monday, 1 May 2017 - Monthly Climate Summary for Melbourne - Product code IDCKGC16L0

Melbourne in April 2017: both rainfall and nighttime temperatures above average

Rainfall across Melbourne during April was generally above average. Overnight temperatures were above average in all Melbourne suburbs, while daytime temperatures were mostly close to average.

Above average rainfall

  • April rainfall was generally above average except in the eastern suburbs where it was close to average
  • The heaviest rainfall during the month occurred on the 10th, 25th and 26th when cold fronts associated with low pressure troughs brought widespread rainfall across the Melbourne metropolitan area, with daily totals generally between 20 and 30 mm, and locally higher falls
  • The highest daily total, 89.4 mm, was recorded at Burnside on the 10th, while Bullengarook East (in Greater Melbourne northwest) was the wettest location, receiving a total of 166.4 mm during the month
  • Some sites had their record highest April total rainfall, or highest April total rainfall for more than 20 years
  • Melbourne (Olympic Park) had 11 days with rainfall and a monthly total of 123.4 mm

Above average overnight temperatures

  • All Melbourne sites had warmer than average nights, while daytime temperatures were mostly close to average
  • For Greater Melbourne the highest daytime temperature during April was 28.9 °C at Essendon Airport on the 8th in the warm northerly airstream
  • Melbourne (Olympic Park) recorded 28.1 °C, its highest daytime temperature during the month, also on the 8th
  • The lowest overnight temperature in the Melbourne metropolitan area, 1.8 °C, was recorded on the 3rd at Coldstream, during the clear night with light winds

Strong winds and hail

  • The strongest wind gust, 94 km/h, was recorded at Fawkner Beacon on the 8th, associated with the passage of the low pressure trough
  • An intense cold front crossed the city early on the 26th bringing storms with heavy rainfall and local hail, resulting in disruption to road and rail travel

Further information

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Extremes Maps Records Summaries Daily observations Important notes the top

Extremes in April 2017
Hottest day 28.9 °C at Essendon Airport on the 8th
Warmest days on average 21.0 °C at Viewbank
Coolest days on average 16.7 °C at Ferny Creek
Coldest day 9.5 °C at Wallan (Kilmore Gap) on the 26th
Coldest night 1.8 °C at Coldstream on the 3rd
Coolest nights on average 8.0 °C at Coldstream
Warmest nights on average 12.4 °C at Frankston AWS
Warmest night 18.6 °C at Melbourne (Olympic Park) on the 8th
Warmest on average overall 16.5 °C at Melbourne (Olympic Park)
Coolest on average overall 13.4 °C at Ferny Creek
Wettest overall 166.4 mm at Bullengarook East
Wettest day 89.4 mm at Burnside on the 10th
Strongest wind gust 94 km/h at Fawkner Beacon on the 8th

Extremes Maps Records Summaries Daily observations Important notes the top

Record highest April total rainfall
New record
(mm)		 Old
record		 Years of
record		 Average for
April
Bullengarook East 166.4 164.2 in 2001 65 59.3
Bundoora (Latrobe University) 145.3 121.4 in 2001 38 57.0
Wallan 116.4 96.6 in 1989 37 49.7

Highest April total rainfall for at least 20 years
Observed
(mm)		 Most recent
higher		 Average for
April
Preston Reservoir 141.8 194.7 in 1960* 58.6
Melbourne Airport 98.2 118.2 in 1978 44.5
Essendon Airport 108.6 112.4 in 1977* 54.9

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



Extremes Maps Records Summaries Daily observations Important notes the top

Summary statistics for April 2017
Maximum temperatures
(°C)		 Minimum temperatures
(°C)		 Rainfall
(millimetres)
Mean for
April
2017		 Diff
from
average		 Highest for
April
2017		 Mean for
April
2017		 Diff
from
average		 Lowest for
April
2017		 Total for
April
2017		 Average
for
April		 Rank of
April
2017		 Fraction of
April
average
Bundoora (Latrobe University) 20.7 +0.2 27.8 8th 10.6 +0.8 5.0 3rd 145.3 57.0 highest 255%
Cerberus 20.4 +0.6 28.1 8th 10.1 +0.1 5.7 3rd 73.2 62.4 average 117%
Coldstream 20.8 +0.3 27.5 8th 8.0 +1.2 1.8 3rd 79.8 61.7 average 129%
Cranbourne Botanic Gardens 20.1 +0.2 27.4 8th 10.7 +0.4 5.9 10th 103.2 70.9 high 146%
Essendon Airport 20.8 +0.7 28.9 8th 11.3 +1.4 7.1 27th 108.6 54.9 high 198%
Ferny Creek 16.7   23.4 8th 10.2   4.7 27th 136.2
Frankston AWS 19.6 +0.3 25.5 20th 12.4 +0.1 8.6 10th
Laverton RAAF 20.5 +0.3 28.8 8th 11.1 +1.2 6.5 4th 91.0 45.6 v high 200%
Melbourne (Olympic Park) 20.8   28.1 8th 12.3   8.2 3rd 123.4
Melbourne Airport 20.6 +0.3 28.8 8th 10.9 +0.7 5.5 3rd 98.2 44.5 v high 221%
Moorabbin Airport 20.9 +0.7 28.3 8th 11.4 +0.9 6.0 3rd 94.6 62.5 high 151%
Scoresby Research Institute 20.8 +0.8 27.7 8th 10.4 +0.3 5.3 3rd 99.8 67.9 high 147%
Viewbank 21.0 -0.3 28.3 8th 10.5 +0.5 5.6 3rd 118.0 59.7 high 198%
Wallan (Kilmore Gap) 17.3 +0.3 24.6 8th 9.7 +0.9 4.1 27th 85.8 56.2 high 153%

Extremes Maps Records Summaries Daily observations Important notes the top

Daily maximum temperatures for April 2017
123456789101112131415161718192021222324252627282930
Bundoora (Latrobe University)18.316.922.524.525.126.026.227.815.215.719.120.023.417.518.122.018.820.826.525.520.821.622.823.218.013.915.218.918.518.3
Cerberus18.616.722.323.124.725.926.228.115.916.718.620.621.718.217.320.319.121.223.327.020.022.120.121.318.014.315.318.818.316.8
Coldstream18.419.123.224.325.125.326.027.514.915.320.020.924.217.418.621.619.821.226.526.219.922.323.223.217.514.613.316.818.917.4
Cranbourne Botanic Gardens18.616.322.723.925.125.625.627.414.816.018.620.522.117.916.321.118.326.320.221.421.922.817.114.314.417.918.116.5
Essendon Airport19.118.721.825.025.226.326.928.915.115.519.419.623.817.816.622.218.421.426.426.019.621.922.323.618.314.214.719.019.117.5
Ferny Creek14.714.018.720.220.520.921.523.411.010.616.117.320.814.114.017.916.018.522.521.416.217.919.519.413.49.910.112.714.412.8
Frankston AWS16.716.821.623.423.025.524.425.115.215.919.520.819.517.916.018.318.621.925.525.520.220.118.322.317.014.314.917.616.916.2
Laverton RAAF19.617.621.023.025.027.127.428.815.415.318.619.221.517.916.121.618.219.826.426.219.522.421.623.218.814.214.219.319.415.9
Melbourne (Olympic Park)19.018.221.524.425.426.626.228.115.217.018.519.322.217.917.322.618.320.426.926.520.922.521.824.717.714.515.619.818.117.8
Melbourne Airport19.018.421.724.825.926.026.728.814.814.019.019.523.617.616.621.717.921.426.326.319.122.122.023.418.114.214.418.619.416.1
Moorabbin Airport18.918.622.223.325.126.226.828.315.516.919.120.420.918.417.420.718.521.427.126.421.223.421.523.918.814.915.118.719.018.1
Scoresby Research Institute18.717.522.924.525.026.125.527.714.914.920.221.423.517.118.821.819.621.626.825.620.522.623.123.817.514.814.217.618.817.9
Viewbank19.917.023.225.325.727.126.128.313.715.219.820.523.918.518.321.819.221.726.925.820.221.823.423.718.014.114.418.719.417.9
Wallan (Kilmore Gap)15.516.019.422.122.022.723.424.611.410.815.617.221.915.613.719.716.818.322.721.714.415.918.620.216.19.510.114.615.514.3
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 April 2017
123456789101112131415161718192021222324252627282930
Bundoora (Latrobe University)7.99.65.07.712.58.816.711.57.711.28.88.910.210.36.88.17.211.814.015.516.013.014.415.49.07.28.313.212.0
Cerberus10.09.95.76.08.09.79.212.613.86.913.210.16.310.37.05.88.56.57.313.313.915.314.012.715.810.68.710.614.18.2
Coldstream3.06.51.84.24.44.65.710.114.63.78.35.96.57.54.84.04.44.87.510.414.715.213.711.915.38.35.18.912.910.0
Cranbourne Botanic Gardens10.28.77.98.19.010.012.216.712.35.911.610.97.611.18.88.410.08.513.615.013.513.515.19.46.810.013.012.2
Essendon Airport8.611.57.87.58.89.013.017.210.68.511.210.79.411.410.18.611.99.612.313.515.715.913.515.415.69.67.18.713.612.5
Ferny Creek6.47.56.311.113.113.114.916.210.84.89.08.89.110.77.67.59.88.913.216.713.013.412.611.613.26.04.76.09.29.3
Frankston AWS10.111.59.910.511.812.514.717.913.28.613.212.110.113.111.410.411.210.410.913.815.515.915.614.816.110.38.910.914.313.7
Laverton RAAF8.212.711.06.58.58.912.317.611.29.711.311.78.410.68.66.910.18.611.413.415.715.811.915.415.69.87.49.713.611.0
Melbourne (Olympic Park)10.011.78.210.011.012.012.718.611.79.012.310.810.913.011.89.911.19.513.014.616.516.914.415.916.210.18.39.414.913.6
Melbourne Airport7.511.25.56.69.811.812.515.710.49.010.710.58.510.88.37.910.79.810.014.815.415.213.214.815.89.36.39.712.312.3
Moorabbin Airport10.29.26.08.18.39.613.617.212.28.113.010.48.913.610.48.89.68.110.914.915.215.813.714.114.89.98.610.814.413.6
Scoresby Research Institute8.19.45.36.27.911.112.016.914.36.69.38.17.510.67.56.87.77.610.115.015.415.913.413.715.29.15.49.813.012.7
Viewbank6.510.05.67.18.48.99.616.712.17.911.68.68.911.310.17.38.47.111.613.415.115.513.714.715.58.67.28.912.712.5
Wallan (Kilmore Gap)7.27.05.09.410.412.312.313.710.66.08.59.710.210.16.98.59.710.110.713.713.312.712.012.213.76.24.15.49.48.7
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 April 2017
123456789101112131415161718192021222324252627282930
Bonbeach (Carrum) - 0.8 - - - - - - - 14.2 - - - - - - - - - - 12.3 - - - - 40.0
Bullengarook East - 0.2 - - - - - - → 92.0 10.4 2.4 - - - - - 0.2 - - 14.4 8.6 0.2 - 27.4 7.6 2.4 0.4 0.2 -
Bundoora (Latrobe University) - 0.4 - - - - - - 6.6 40.4 4.2 - - - - - - - - - 8.8 4.2 2.6 3.0 24.2 34.2 14.6 2.0 0.1 -
Burnside - - - - - - - - 4.4 89.4 4.7 0.4 - - - - - - - - 10.0 3.2 - 0.4 22.0 11.2 - 3.0 0.2 -
Cerberus 0.2 0.4 - 0.2 - - - - 8.6 4.0 1.8 0.2 - 0.2 1.2 - - - 0.2 - 9.8 0.8 - - 26.2 11.6 7.0 - 0.6 0.2
Cheltenham Kingston Centre




















2.0







Coldstream 0.2 - - - - - - - 8.0 11.0 2.0 - - - - - - - 0.2 - 6.2 4.2 0.2 0.2 23.6 17.4 3.8 1.4 1.2 0.2
Cranbourne Botanic Gardens 0.5 0.2 1.2 - - - - - 19.6 9.8 4.2 - - - 0.2 - - - → → 10.0 1.3 0.4 0.4 27.3 14.2 7.8 3.6 2.0 0.5
Essendon Airport 0.2 - - - - - - - 9.0 34.0 2.2 - 0.2 - - - - - - - 9.4 6.0 2.4 2.6 20.0 11.6 11.0 - - -
Ferny Creek 1.2 - - - - - - - 13.6 23.8 5.0 - - 0.2 0.6 - - - 0.2 - 7.2 4.0 0.6 1.6 32.2 35.4 4.0 3.0 3.6 -
Kinglake West 1.0 - - - - - - - 13.2 33.4 - 7.8 - - - - - - - - 7.4 11.4 - - 26.8 22.8 22.2


Kinglake West (Wallaby Creek) 0.2






17.2 39.8


0.2

- - 0.6
5.8 12.4 0.2
29.2 22.2 24.8

0.8
Laverton RAAF - - - - - - - - 6.6 31.0 2.4 0.2 0.2 - 0.2 - - - - - 12.2 2.0 - - 23.2 10.8 2.0 0.2 - -
Main Ridge - - - - - - - 8.0 4.0 - → 10.8 - 1.0 - - - - - - 12.0 16.0 - - 50.0 23.0 5.0 - → 7.0
Melbourne (Olympic Park) - 0.4 - - - - - - 10.6 25.4 15.4 - - - - - - - - - 9.4 4.6 - - 21.6 20.0 15.4 0.4 0.2 -
Melbourne Airport - 0.2 - - - - - - 6.6 35.6 1.8 - - 0.2 - 0.2 - - - - 7.8 8.4 1.6 3.6 21.0 8.0 3.0 - - 0.2
Mitcham -






13.2 20.6





- 0.2 -
9.0 5.6 - 1.0 31.2 31.8 7.8

-
Moorabbin Airport - - - - - - - - 12.2 15.0 0.2 - - - 2.2 - - - - - 8.4 1.0 1.8 0.2 20.8 25.4 6.4 0.8 - 0.2
Mornington - - - - - - - → → 7.2 1.4 - - - - - - - - - 11.9 → → 1.6 → 45.6 2.4 -

Oakleigh (Metropolitan Golf Club) - - - - - - - - → 29.7 1.5 - - → → → → 2.0 - - 8.6 - - - → 68.5 → 6.8

Preston Reservoir 0.2






6.0 37.8


0.2

- - -
7.8 4.2 5.6 2.0 30.8 19.4 27.8

-
Romsey - - 0.2


























Rosebud (Country Club) 0.8 0.2 - - - - - - 8.2 11.6 0.8 - - 0.8 - - - - - - 8.0 15.6 - - 40.6 15.8 6.2 1.0 3.2 1.0
Scoresby Research Institute 0.2 - - - - - - - 12.0 9.4 1.4 0.2 - - 0.6 - - - 0.2 - 8.2 3.0 0.4 0.8 28.8 31.4 1.6 0.8 0.8 -
Springvale (Sandown) - 0.2 - - - - - 8.0 19.0 - 0.8 - - - - - - - - - 6.2 - 8.2 0.6 29.2 23.0 7.2


Springvale Necropolis - - - - - - - → → 35.5 - - - - - - - - - - 8.0 → → 20.1 - 36.5 - 6.0

Toorourrong Reservoir (Toorourrong) -






10.8 43.0





- - -
2.4 3.8 - 0.2 20.8 11.0 18.2

0.4
Viewbank 0.2 0.4 0.2 - - - - - 7.4 31.4 1.2 - - - 0.2 - - - - - 7.2 4.0 0.6 1.0 25.8 24.4 13.0 0.8 0.2 -
Wallan - - - - - - - - 12.6 46.4 7.0 - - - - - - - - - 9.4 4.8 - - 18.0 8.8 8.8 0.6

Wallan (Kilmore Gap) - 0.2 - - - - - - 10.0 28.4 - 0.2 - 0.2 - - - - 0.2 - 8.6 6.2 0.2 - 13.4 11.8 5.6 0.4 - 0.4
Warburton (O'Shannassy Reservoir (Quarte -






14.6 14.0


0.4

- - -
4.0
- 0.2 32.0 20.6 9.2
1.4
Yan Yean 0.2






6.8 36.8





-
-
2.0 3.0 1.8 0.2 15.6 13.2 13.6

-
Yarra River @ Warrandyte 0.2 - - - - - - - 12.6 16.4 3.6 - - - 0.4 - - - - - 10.4 5.0 0.4 0.4 25.6 30.4 9.0 3.2 1.0 -
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

Extremes Maps Records Summaries Daily observations Important notes the top

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 11 am on Monday 1 May 2017. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

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