Melbourne Metropolitan Area, November 2010: Wet with warm nights

Rainfall across the Melbourne Metropolitan area was generally above average for November. Rainfall was persistent with several stations recording 19 rain days this month. Mean maximum temperatures were generally close to average. Mean minimum temperatures were generally above average.

Rainfall

Rainfall totals for November ranged from 81.4 mm at Cerberus to 148.6 mm at Ferny Creek (Dunns Hill). Cranbourne Botanic Gardens had the smallest anomaly, receiving 131% of their normal rainfall while Avalon Airport had the largest anomaly, receiving 256% of their normal rainfall. The wettest single day was the 28th when 39.2 mm was recorded at Ferny Creek (Dunns Hill). The majority of stations also recorded their wettest day for the month on the 28th. Most stations recorded above average rainfall but Melbourne Airport and Laverton RAAF recorded very much above average rainfall, whilst Avalon Airport recorded its wettest November ever.

Some sites had their highest total November rainfall on record. Some sites had their highest total November rainfall for at least 20 years.

Maximum temperature

Average maximum temperatures for November ranged from 18.1 C at Ferny Creek (Dunns Hill) to 23.2 C at Melbourne Regional Office. Viewbank (ARPANSA) had the coolest anomaly, -1.5 C, while Melbourne Regional Office had the warmest anomaly of 1.3 C. The hottest day was 33.3 C at Melbourne Regional Office on the 22nd and the majority of stations also recorded their warmest day on the 22nd. The coldest day was 9.7 C at Ferny Creek (Dunns Hill) on the 3rd and most other stations also recorded their coolest day on the 3rd.

Minimum temperature

Average minimum temperatures for November ranged from 9.7 C at Ferny Creek (Dunns Hill) and Coldstream, to 13.4 C at Melbourne Regional Office. Viewbank (ARPANSA) had the smallest anomaly with 0.2 C and Melbourne Regional Office had the largest with 2.2 C. The coldest night was 2.9 C at Coldstream on the 19th, almost half of the stations recorded their coldest nights on the 5th. The warmest night was 21.9 C at Cerberus on the 24th, all stations except Melbourne Airport and Coldstream recorded their warmest night for the month on the 24th.

Wind

The strongest wind gust was 98 km/h at Ferny Creek (Dunns Hill) on the 12th, followed by 89 km/h at Moorabbin Airport on the 12th, and then 74 km/h at Melbourne Airport on the 7th.

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Extremes in November 2010
Hottest day 33.3 C at Melbourne Regional Office on the 22nd
Warmest days on average 23.2 C at Melbourne Regional Office
Coolest days on average 18.1 C at Ferny Creek (Dunns Hill)
Coldest day 9.7 C at Ferny Creek (Dunns Hill) on the 3rd
Coldest night 2.9 C at Coldstream on the 19th
Coolest nights on average 9.7 C at Coldstream
9.7 C at Ferny Creek (Dunns Hill)
Warmest nights on average 13.4 C at Melbourne Regional Office
Warmest night 21.9 C at Cerberus on the 24th
Wettest overall 148.6 mm at Ferny Creek (Dunns Hill)
Driest overall 81.4 mm at Cerberus
Wettest day 39.2 mm at Ferny Creek (Dunns Hill) on the 28th
Highest wind gust 98 km/h at Ferny Creek (Dunns Hill) on the 12th


Record highest total November rainfall
Total rainfall Previous highest Years of
record
Average for
November
Avalon Airport 120.8 106.4 in 1978 30 47.1

Highest total November rainfall for at least 20 years
Total rainfall Most recent November
this high or higher
Years since
higher
Average for
November
Laverton RAAF 119.6 133.2 in 1978 32 52.3
Melbourne Airport 130.4 158.0 in 1988 21 62.8



Summary statistics for November 2010
Maximum temperatures Minimum temperatures Rainfall
Mean Diff
from
average
Highest Mean Diff
from
average
Lowest Total Average Rank of
November
2010
Fraction of
November
average
East Central (district 86)
Bundoora (Latrobe University) 22.7 +0.3 32.2 22nd 11.1 +0.5 5.5 5th 104.5 69.4 high 151%
Cerberus 20.6 +0.3 31.4 12th 11.6 +1.1 5.0 17th 81.4 52.5 high 155%
Coldstream 22.9 +0.3 30.9 22nd 9.7 +1.1 2.9 19th 104.8 69.2 high 151%
Cranbourne Botanic Gardens 21.3 +0.3 31.6 22nd 11.2 +0.9 5.6 4th 96.5 73.8 high 131%
Essendon Airport 22.0 +0.4 31.4 22nd 11.4 +1.6 5.1 5th 111.8 58.6 v high 191%
Ferny Creek (Dunns Hill) 18.1 +0.1 27.3 22nd 9.7 +0.6 3.9 4th 148.6 105.9 high 140%
Melbourne Airport 22.0 +0.1 31.6 22nd 11.1 +0.8 5.4 5th 130.4 62.8 v high 208%
Melbourne Regional Office 23.2 +1.3 33.3 22nd 13.4 +2.2 8.8 5th 107.0 60.1 high 178%
Moorabbin Airport 22.1 +0.6 32.5 12th 12.3 +1.3 6.7 6th 113.2 62.6 v high 181%
Scoresby Research Institute 22.3 +1.0 31.5 22nd 11.5 +1.2 4.9 4th 120.4 81.3 high 148%
Viewbank (ARPANSA) 23.0 -1.5 32.2 22nd 11.6 +0.2 4.9 5th 110.6 77.9 high 142%
West Central (district 87)
Avalon Airport 21.7 -0.5 32.2 12th 10.8 +0.3 4.0 1st 120.8 47.1 highest 256%
Laverton RAAF 21.6 +0.1 31.5 22nd 11.6 +1.5 4.8 5th 119.6 52.3 v high 229%

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 12 pm on Wednesday 1 December 2010. 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
(03) 9669 4057
Enquiries