Friday, 1 March 2013 - Monthly Climate Summary for Melbourne Metropolitan Area and Environs - Product code IDCKGC2xx0
Melbourne Metropolitan Area and Environs in February 2013:
Rainfall more than that usually received;
Lengthy warm and sunny periods.
Extremes Records Summaries Important notes the top
Melbourne CBD
Located in the Central District at the head of Port Phillip Bay, Melbourne is Victoria's State Capital. Here, overnight minimum temperatures were much warmer than those usually experienced and averaged 17.6°C (departure from normal 3°C). That the overnight temperatures in Melbourne are higher than those in most surrounding localities is a consequence of the city being under the influence of the effect of urbanisation (cities are usually warmer than their rural surroundings, especially at night, because of heat stored in bricks and concrete and trapped between close-packed buildings). Daytime maximum temperatures were much warmer than those usually experienced and averaged 29.2°C (departure from normal 3.4°C). Total rainfall for the month was 70.4 mm, this being more than that usually received (normal 48.1 mm, percentage of normal received 146%).
Selected Melbourne suburbs
In the suburb of Essendon, which is located some 15 kilometres to the northwest of the city centre, overnight minimum temperatures were much warmer than those usually experienced and averaged 15.8°C (departure from normal 2°C). Daytime maximum temperatures were much warmer than those usually experienced and averaged 28.8°C (departure from normal 3.2°C). Total rainfall for the month was 59 mm, this being slightly more than that usually received (normal 47.2 mm, percentage of normal received 125%).
The suburb of Laverton is located some 30 kilometres to the southwest of the city centre, and is often under the drying influence of the rain shadow from the ranges of western Victoria. Here, overnight minimum temperatures were warmer than those usually experienced and averaged 15.5°C (departure from normal 1.3°C). Daytime maximum temperatures were much warmer than those usually experienced and averaged 27.4°C (departure from normal 1.9°C). Total rainfall for the month was 53.4 mm, this being slightly more than that usually received (normal 47.4 mm, percentage of normal received 113%).
In the suburb of Bundoora, which is located some 20 kilometres to the northeast of the city centre, overnight minimum temperatures were slightly warmer than those usually experienced and averaged 15.1°C (departure from normal 0.9°C). Daytime maximum temperatures were much warmer than those usually experienced and averaged 29.1°C (departure from normal 2.4°C). Total rainfall for the month was 81.3 mm, this being much more than that usually received (normal 45 mm, percentage of normal received 181%).
In the suburb of Moorabbin, which is located some 20 kilometres to the southeast of the city centre, overnight minimum temperatures were warmer than those usually experienced and averaged 15.5°C (departure from normal 1.2°C). Daytime maximum temperatures were much warmer than those usually experienced and averaged 28.5°C (departure from normal 2.5°C). Total rainfall for the month was 61 mm, this being more than that usually received (normal 46.9 mm, percentage of normal received 130%).
Some 20 kilometres northwest of the Melbourne city centre, at Melbourne Airport, overnight minimum temperatures were warmer than those usually experienced and averaged 15.3°C (departure from normal 1.2°C). Daytime maximum temperatures were much warmer than those usually experienced and averaged 29°C (departure from normal 2.5°C). Total rainfall for the month was 54.6 mm, this being slightly more than that usually received (normal 44.4 mm, percentage of normal received 123%).
Records
Some sites had their highest February mean daily maximum temperature for at least 10 years.| Extremes in February 2013 | |
|---|---|
| Hottest day | 38.7 °C at Avalon Airport on the 18th |
| Warmest days on average | 30.7 °C at Coldstream |
| Coolest days on average | 26.8 °C at Cerberus |
| Coldest day | 18.2 °C at Cranbourne Botanic Gardens on the 1st |
| Coldest night | 5.0 °C at Coldstream on the 2nd |
| Coolest nights on average | 12.6 °C at Coldstream |
| Warmest nights on average | 17.6 °C at Melbourne Regional Office |
| Warmest night | 22.2 °C at Melbourne Regional Office on the 25th |
| Warmest on average overall | 23.4 °C at Melbourne Regional Office |
| Coolest on average overall | 20.8 °C at Cerberus |
| Wettest overall | 89.8 mm at Scoresby Research Institute |
| Highest wind gust | 72 km/h at Melbourne Airport on the 18th |
Extremes Records Summaries Important notes the top
| Highest February mean daily maximum temperature for at least 10 years | |||||
|---|---|---|---|---|---|
|
Mean daily maximum temperature for February 2013 (°C) |
Most recent February at least this warm |
Years since warmer |
Average for February |
||
| Melbourne Regional Office | 29.2 | 30.1 | in 2000 | 13 | 25.8 |
| Scoresby Research Institute | 29.8 | 29.9 | in 2000 | 13 | 26.4 |
Extremes Records Summaries Important notes the top
| Summary statistics for February 2013 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for February (°C) |
Minimum temperatures for February (°C) |
Rainfall for February (millimetres) |
||||||||||
| Mean for February 2013 |
Diff from average |
Highest for February 2013 |
Mean for February 2013 |
Diff from average |
Lowest for February 2013 |
Total for February 2013 |
Average for February |
Rank of February 2013 |
Fraction of February average |
|||
| Avalon Airport | 28.0 | +1.9 | 38.7 | 18th | 15.3 | +0.9 | 8.6 | 2nd | 54.0 | 35.3 | high | 153% |
| Bundoora (Latrobe University) | 29.1 | +2.4 | 37.2 | 6th | 15.1 | +0.9 | 9.0 | 5th | 81.3 | 45.0 | high | 181% |
| Cerberus | 26.8 | +1.9 | 36.6 | 18th | 14.9 | +0.6 | 8.6 | 5th | 49.6 | 41.5 | high | 120% |
| Coldstream | 30.7 | +3.3 | 38.1 | 25th | 12.6 | +0.6 | 5.0 | 2nd | 70.0 | 57.8 | average | 121% |
| Cranbourne Botanic Gardens | 27.9 | +2.4 | 36.5 | 7th | 14.1 | +0.1 | 9.1 | 1st | 53.1 | 53.7 | average | 99% |
| Essendon Airport | 28.8 | +3.2 | 37.5 | 6th | 15.8 | +2.0 | 10.1 | 1st | 59.0 | 47.2 | high | 125% |
| Laverton RAAF | 27.4 | +1.9 | 37.4 | 18th | 15.5 | +1.3 | 10.6 | 1st | 53.4 | 47.4 | high | 113% |
| Melbourne Airport | 29.0 | +2.5 | 37.2 | 6th | 15.3 | +1.2 | 8.8 | 1st | 54.6 | 44.4 | high | 123% |
| Melbourne Regional Office | 29.2 | +3.4 | 37.2 | 6th | 17.6 | +3.0 | 12.2 | 1st | 70.4 | 48.1 | high | 146% |
| Moorabbin Airport | 28.5 | +2.5 | 37.0 | 6th | 15.5 | +1.2 | 10.2 | 2nd | 61.0 | 46.9 | high | 130% |
| Scoresby Research Institute | 29.8 | +3.4 | 36.9 | 6th | 14.6 | +0.8 | 7.6 | 2nd | 89.8 | 54.2 | high | 166% |
| Viewbank | 30.2 | +3.0 | 37.4 | 6th | 15.3 | +0.7 | 10.1 | 2nd | 85.8 | 54.0 | high | 159% |
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 4 am on Friday 1 March 2013. 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.
The ACORN-SAT dataset
is being used for temperature area averages from December 2012 onwards.
The major change from earlier datasets is that the ACORN-SAT dataset commences in 1910, rather than 1950,
and hence rankings are calculated using a larger set of years.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
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