Thursday, 3 March 2011 - Seasonal Climate Summary for Melbourne Metropolitan Area;- Product code IDCKGC1xx0
Melbourne Metropolitan Area in Summer 2010-11: A very wet season.
- Record breaking daily and seasonal rainfall at several stations
- Above average night-time temperatures
- Day time maximum temperatures average to below average
Extremes Records Summaries Important notes the top
Rainfall
For the summer season rainfall over the Melbourne Metropolitan region was very much above average, with some areas highest on record, namely in the area surrounding Port Phillip Bay and to the north. The vast majority of the region recorded summer rainfall totals more than 200% of the usual mean summer rainfall. Moorabbin Airport received 356.0 mm over the season, 281% of mean summer rainfall. Many sites experienced their highest on record total summer rainfall while other sites had their highest total summer rainfall for at least 20 years.
The wettest site overall was Lilydale, which recorded 519.2 mm for the season. The wettest single day was 147.4 mm at Glen Waverley (Golf Course) on the 5th of February 2011.This day was marked by very heavy rainfall leading to flash flooding across the region (see Special Climate Statement 28). Moorabbin Airport and Glen Waverley Golf Course both recorded single day totals in excess of 140 mm, their highest daily rainfall for any time of year. A number of other sites also set new records for their highest summer daily rainfall total.
Maximum temperature
Average maximum temperatures were below average across the north and northwest of the Melbourne Metropolitan region during summer and near average elsewhere. The warmest days on average were observed at Coldstream and Melbourne Regional Office, both averaging 25.5 °C. The coolest days on average were observed at Ferny Creek (Dunns Hill) with 20.8 °C for the season.
Avalon Airport recorded the hottest day for the region on the 31st of December, a sweltering 42.8 °C. The lowest maximum was recorded on the 21st of December, with 10.9 °C at Ferny Creek (Dunns Hill).
Minimum temperature
Summer mean minimum temperatures were generally above to very much above average across the Melbourne Metropolitan area. The warmest nights were experienced at Melbourne Regional Office, averaging 15.9 °C, 2 °C above the long-term average for this site. The coolest nights on average were at Ferny Creek (Dunns Hill), averaging 11.5 °C for the summer, near to the long-term average at this site.
During the season, Coldstream recorded its warmest on record average January minimum temperature, 13.9 °C, as well as a record high mean daily minimum for summer with 12.7 °C. Viewbank (ARPANSA) recorded its coldest ever February daily minimum temperature, 7.2 °C, on the 7th of that month as well as its coolest summer temperature on record, 4.9 °C, on the 28th of December.
The warmest night was the 1st of February, on which Melbourne Regional Office recorded a balmy minimum of 24.5 °C. The coldest night in the Melbourne Metropolitan area for the season was at Sheoaks with 3.0 °C on 22 Dec 2010.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
| Extremes in summer 2010-11 | |
|---|---|
| Hottest day |
42.8 °C at Avalon Airport on 31 Dec 2010 |
| Warmest days on average | 25.5 °C at Coldstream and Melbourne Regional Office |
| Coolest days on average | 20.8 °C at Ferny Creek (Dunns Hill) |
| Coldest day | 10.9 °C at Ferny Creek (Dunns Hill) on 21 Dec 2010 |
| Coldest night | 3.0 °C at Sheoaks on 22 Dec 2010 |
| Coolest nights on average | 11.5 °C at Ferny Creek (Dunns Hill) |
| Warmest nights on average | 15.9 °C at Melbourne Regional Office |
| Warmest night |
24.5 °C at Melbourne Regional Office on 1 Feb 2011 |
| Warmest on average overall | 20.7 °C at Melbourne Regional Office |
| Coolest on average overall | 16.2 °C at Ferny Creek (Dunns Hill) |
| Wettest overall | 519.2 mm at Lilydale |
| Wettest day | 147.4 mm at Glen Waverley (Golf Course) on 5 Feb 2011 |
| Highest wind gust |
100 km/h at Point Wilson on 3 Dec 2010 and Ferny Creek (Dunns Hill) on 14 Jan 2011 |
Details Extremes Records Summaries Important notes the top
| Record highest summer daily rainfall | ||||||
|---|---|---|---|---|---|---|
|
Highest daily rainfall in summer 2010-11 (mm) |
Previous wettest for summer |
Years of record |
||||
| Ballan | 119.4 | on 5 Feb 2011 | 118.4 | on 1 Dec 1933 | 137 | |
| Oakleigh (Metropolitan Golf Club) | 138.7 | on 5 Feb 2011 | 109.0 | on 3 Feb 2005 | 99 | |
| Cheltenham Kingston Centre | 112.0 | on 5 Feb 2011 | 97.8 | on 29 Jan 1963 | 98 | |
| Meredith (Darra) | 136.0 | on 5 Feb 2011 | 125.2 | on 6 Feb 1973 | 98 | |
| Moorabbin Airport | 140.8 | on 5 Feb 2011 | 91.0 | on 13 Jan 1998 | 61 | |
| Bonbeach (Carrum) | 112.0 | on 5 Feb 2011 | 98.0 | on 3 Feb 2005 | 57 | |
| Glen Waverley (Golf Course) | 147.4 | on 5 Feb 2011 | 130.4 | on 3 Feb 2005 | 39 | |
| Doncaster (Manningham Depot) | 103.6 | on 5 Feb 2011 | 101.6 | on 3 Feb 2005 | 25 | |
| Record highest total summer rainfall | |||||
|---|---|---|---|---|---|
|
Total rainfall for summer 2010-11 (mm) |
Previous wettest for summer |
Years of record |
Average for summer |
||
| Lancefield | 430.0 | 321.0 | in 1992 | 121 | 132.8 |
| Lilydale | 519.2 | 442.2 | in 1903 | 120 | 186.7 |
| Wonthaggi | 320.5 | 273.7 | in 1945 | 99 | 156.4 |
| Croydon (Samuel Street) | 488.2 | 369.2 | in 1993 | 97 | 189.7 |
| Warburton (O'Shannassy Reservoir (Quarte | 454.4 | 449.0 | in 1992 | 96 | 231.9 |
| Cheltenham Kingston Centre | 406.6 | 339.6 | in 1992 | 94 | 163.3 |
| Mitcham | 417.0 | 356.6 | in 1993 | 75 | 185.3 |
| Laverton RAAF | 345.8 | 321.2 | in 1972 | 70 | 133.2 |
| Scoresby Research Institute | 468.0 | 364.9 | in 1993 | 60 | 184.4 |
| Springvale Necropolis | 472.6 | 344.6 | in 1993 | 60 | 175.1 |
| Moorabbin Airport | 427.2 | 291.9 | in 1971 | 57 | 152.2 |
| Bonbeach (Carrum) | 354.6 | 293.6 | in 1992 | 54 | 146.0 |
| Croydon (Council Depot) | 454.0 | 369.6 | in 1993 | 46 | 184.6 |
| Nyora (Post Office) | 329.4 | 317.0 | in 1992 | 39 | 187.9 |
| Glen Waverley (Golf Course) | 456.4 | 355.2 | in 1993 | 35 | 193.5 |
| Bundoora (Latrobe University) | 296.4 | 278.7 | in 1993 | 32 | 156.0 |
| Altona (City Offices) | 369.4 | 317.9 | in 1972 | 31 | 148.3 |
| Avalon Airport | 260.0 | 245.1 | in 1972 | 28 | 94.7 |
| Cerberus | 288.0 | 222.4 | in 2004 | 21 | 131.8 |
| Cranbourne Botanic Gardens | 333.1 | 295.0 | in 1993 | 21 | 175.5 |
| Doncaster (Manningham Depot) | 382.2 | 319.6 | in 1993 | 20 | 173.2 |
| Highest total summer rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
|
Total rainfall for summer 2010-11 (mm) |
Most recent summer at least this wet |
Years since wetter |
Average for summer |
||
| Ballan | 363.8 | 365.0 | in 1875 | 133 | 145.6 |
| Prahran (Como House) | 355.6 | 378.0 | in 1903 | 105 | 154.2 |
| Mornington | 290.6 | 368.7 | in 1903 | 94 | 142.9 |
| Toorourrong Reservoir (Toorourrong) | 342.4 | 359.4 | in 1927 | 83 | 176.1 |
| Meredith (Darra) | 349.0 | 351.7 | in 1970 | 39 | 143.6 |
| Blackwood | 331.0 | 331.5 | in 1970 | 37 | 165.8 |
| Bannockburn | 215.6 | 243.3 | in 1972 | 36 | 108.7 |
| Yan Yean | 260.6 | 305.0 | in 1971 | 35 | 147.8 |
| Essendon Airport | 267.4 | 281.9 | in 1962 | 30 | 142.3 |
| Record lowest summer temperature | ||||||
|---|---|---|---|---|---|---|
|
Lowest temperature in summer 2010-11 (°C) |
Previous lowest for summer |
Years of record |
Average for summer |
|||
| Viewbank (ARPANSA) | 4.9 | on 28 Dec 2010 | 5.0 | on 20 Dec 1999 | 12 | 13.7 |
| Record highest summer mean daily minimum temperature | |||||
|---|---|---|---|---|---|
|
Mean daily minimum temperature for summer 2010-11 (°C) |
Previous highest for summer |
Years of record |
Average for summer |
||
| Coldstream | 12.7 | 11.8 | in 2007 | 16 | 11.0 |
| Highest summer mean daily minimum temperature for at least 10 years | |||||
|---|---|---|---|---|---|
|
Mean daily minimum temperature for summer 2010-11 (°C) |
Most recent summer this high or higher |
Years since higher |
Average for summer |
||
| Cerberus | 13.9 | 14.5 | in 2000 | 10 | 13.2 |
| Cranbourne Botanic Gardens | 13.5 | 14.3 | in 2000 | 10 | 13.1 |
Details Extremes Records Summaries Important notes the top
| Summary statistics for summer 2010-11 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for summer (°C) |
Minimum temperatures for summer (°C) |
Rainfall for summer (millimetres) |
||||||||||
| Mean for summer 2010-11 |
Diff from average |
Highest for summer 2010-11 |
Mean for summer 2010-11 |
Diff from average |
Lowest for summer 2010-11 |
Total for summer 2010-11 |
Average for summer |
Rank of summer 2010-11 |
Fraction of summer average |
|||
| East Central (district 86) | ||||||||||||
| Bundoora (Latrobe University) | 25.4 | -0.6 | 40.8 | 31 Dec 2010 | 14.3 | +0.8 | 5.5 | 28 Dec 2010 | 296.4 | 156.0 | highest | 190% |
| Cerberus | 23.1 | -0.7 | 38.7 | 31 Dec 2010 | 13.9 | +0.7 | 6.0 | 22 Dec 2010 | 288.0 | 131.8 | highest | 219% |
| Coldstream | 25.5 | -1.2 | 39.2 | 31 Dec 2010 | 12.7 | +1.7 | 4.3 | 28 Dec 2010 | 403.2 | 156.3 | v high | 258% |
| Cranbourne Botanic Gardens | 23.8 | -1.1 | 38.9 | 31 Dec 2010 | 13.5 | +0.4 | 6.5 | 24 Dec 2010 | 333.1 | 175.5 | highest | 190% |
| Essendon Airport | 25.0 | -0.4 | 40.7 | 31 Dec 2010 | 14.2 | +1.3 | 6.2 | 28 Dec 2010 | 267.4 | 142.3 | v high | 188% |
| Ferny Creek (Dunns Hill) | 20.8 | -0.7 | 34.5 | 1 Feb 2011 | 11.5 | -0.2 | 5.3 | 28 Dec 2010 | 508.8 | 237.3 | v high | 214% |
| Melbourne Airport | 24.8 | -0.9 | 40.4 | 31 Dec 2010 | 13.7 | +0.5 | 6.0 | 28 Dec 2010 | 272.8 | 135.2 | v high | 202% |
| Melbourne Regional Office | 25.5 | +0.2 | 41.1 | 31 Dec 2010 | 15.9 | +2.0 | 9.0 | 28 Dec 2010 | 306.0 | 154.9 | v high | 198% |
| Moorabbin Airport | 24.2 | -1.0 | 40.2 | 31 Dec 2010 | 14.5 | +0.9 | 7.8 | 28 Dec 2010 | 427.2 | 152.2 | highest | 281% |
| Rhyll | 22.9 | -0.2 | 37.2 | 31 Dec 2010 | 15.4 | +0.6 | 10.0 | 6 Feb 2011 | 231.2 | 123.1 | v high | 188% |
| Scoresby Research Institute | 24.8 | -0.7 | 39.6 | 31 Dec 2010 | 13.7 | +0.7 | 5.1 | 28 Dec 2010 | 468.0 | 184.4 | highest | 254% |
| Viewbank (ARPANSA) | 25.4 | -1.4 | 40.5 | 31 Dec 2010 | 14.2 | +0.5 | 4.9 | 28 Dec 2010 | 356.0 | 163.2 | v high | 218% |
| Wonthaggi | 23.5 | +0.1 | 38.5 | 31 Dec 2010 | 13.5 | +0.9 | 6.5 | 4 Jan 2011 | 320.5 | 156.4 | highest | 205% |
| West Central (district 87) | ||||||||||||
| Avalon Airport | 24.5 | -0.9 | 42.8 | 31 Dec 2010 | 13.7 | +0.4 | 5.2 | 22 Dec 2010 | 260.0 | 94.7 | highest | 275% |
| Grovedale (Geelong Airport) | 23.9 | -0.1 | 42.3 | 31 Dec 2010 | 13.1 | +0.7 | 4.7 | 22 Dec 2010 | 230.0 | 111.0 | v high | 207% |
| Laverton RAAF | 24.3 | -0.7 | 41.9 | 31 Dec 2010 | 14.4 | +1.1 | 6.6 | 22 Dec 2010 | 345.8 | 133.2 | highest | 260% |
| Sheoaks | 24.1 | -0.6 | 40.3 | 31 Dec 2010 | 12.1 | +0.4 | 3.0 | 22 Dec 2010 | 275.8 | 112.2 | high | 246% |
Details Extremes Records Summaries Important notes the top
Notes
A Monthly Climate Summary is prepared to list the main features of the weather in Melbourne Metropolitan Area and Environs 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.
This statement has been prepared based on information available at 9 am on Thursday 3 March 2011. 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
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
