Thursday, 2 December 2010 - Monthly Climate Summary for ACT Monthly Summary - Product code IDCKGC25R0
Canberra in November 2010: Wet end to spring
- Wettest November since 1995
- Wettest end to the month on record
- Cool days, warm nights
Canberra Airport recorded 121.4 mm of rainfall during November. This is well above the historical average1 of 63.9 mm, and the wettest November since 1995 for Canberra, when 138.2 mm was recorded. The rain fell on 9 days (average 10 days), with the most significant falls occurring at the end of the month, associated with the passage of a low pressure trough. Rainfall totalled 62.8 mm during the last three days of the month - this is the wettest end to November on record for Canberra.
The average maximum temperature for Canberra was 22.5°C. This is close to the historical average of 22.7°C, yet significantly cooler than November 2009 mean of 29.0°C. The warmest day at Canberra was 27.7°C recorded on the 12th and 13th, and the coolest day was 13.4°C on the 4th. Across the ACT the warmest day was 28.2°C at Tuggeranong AWS on the 12th, and the coolest day was 4.8°C at Mount Ginini on the 4th.
The average minimum temperature for Canberra during October was 9.7°C, which is above the historical average of 8.8°C, but cooler than the 2009 average of 12.7°C. This is the coolest November since 2004 (9.3°C) for Canberra minimum temperatures. Nil nights dropped below freezing, which is average for this time of year. The coolest night at Canberra was 3.5°C on the 3rd, and for the ACT the coolest was -0.8°C at Mount Ginini on the 5th.
Canberra Airport experienced prevailing north to north-westerly winds during November, with a frequency of 56% from this direction at 3pm, which is about average for this time of year. The highest wind gust at Canberra Airport was 52 km/hr from the west on the 10th
Sunshine averaged 7.2 hours per day, which is below the historical average of 8.9 hours per day, and the least amount of sunshine recorded for November since 2000 (6.7 hours/day).
|Extremes in November 2010|
|Hottest day||28.2 °C at Tuggeranong (Isabella Plains) AWS on the 12th|
|Warmest days on average||
22.5 °C at Canberra Airport|
22.5 °C at Canberra Airport Comparison
22.5 °C at Tuggeranong (Isabella Plains) AWS
|Coolest days on average||14.1 °C at Mount Ginini AWS|
|Coldest day||4.8 °C at Mount Ginini AWS on the 4th|
|Coldest night||-0.8 °C at Mount Ginini AWS on the 5th|
|Coolest nights on average||5.8 °C at Mount Ginini AWS|
|Warmest nights on average||
10.3 °C at Canberra Airport Comparison|
10.3 °C at Tidbinbilla Nature Reserve
|Warmest night||19.5 °C at Canberra Airport on the 15th|
|Wettest overall||210.0 mm at Mount Ginini AWS|
|Wettest day||50.0 mm at Canberra (Australian National Botanic Ga on the 29th|
|Highest wind gust||74 km/h at Mount Ginini AWS on the 28th|
|Summary statistics for November 2010|
|Southern Tablelands (Goulburn-Monaro) (district 70)|
|Canberra Airport Comparison||22.5||-0.2||28.1||12th||10.3||+1.5||4.3||3rd||103.0||64.4||high||160%|
|Mount Ginini AWS||14.1||20.5||12th||5.8||-0.8||5th||210.0|
|Tidbinbilla Nature Reserve||21.7||-0.3||27.2||12th||10.3||+1.4||5.9||18th||155.2||86.0||v high||180%|
|Tuggeranong (Isabella Plains) AWS||22.5||28.2||12th||10.0||4.6||3rd||148.0|
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 marked like this 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).
This table is very wide; you may have to scroll sideways to see all the days, and you may need to set the paper to 'landscape' to print.
|Southern Tablelands (Goulburn-Monaro) (70)||1||2||3||4||5||6||7||8||9||10||11||12||13||14||15||16||17||18||19||20||21||22||23||24||25||26||27||28||29||30|
|Canberra (Australian National Botanic Ga||22.2||1.8||0.2||3.0||13.6||8.6||0.2||0.4||23.2||0.2||9.0||50.0||13.4|
|Canberra Airport Comparison||-||13.0||1.8||0.2||-||-||-||2.8||9.2||-||3.6||0.2||2.4||18.2||0.2||-||-||-||-||-||-||-||-||-||-||-||5.6||32.2||13.6|
|Mount Ginini AWS||-||21.2||-||0.8||0.6||1.0||1.8||2.4||18.4||0.4||17.8||-||-||15.2||48.8||1.0||-||-||-||0.8||-||-||-||-||-||-||-||17.6||47.4||14.8|
|Nicholls (Gungahlin Lakes)||21.2||0.6||2.6||23.0||1.2||3.0||47.0||12.0|
|Tharwa General Store||20.0||3.6||0.8||2.6||5.4||0.6||0.8||9.0||4.2||25.0||4.2||35.6||13.6|
|Tidbinbilla Nature Reserve||0.2||41.0||0.8||3.0||-||-||3.0||1.0||1.8||-||7.8||-||-||6.8||26.8||-||-||-||-||-||-||-||-||-||-||-||-||9.8||45.0||8.2|
|Torrens (Darke St)||1.4||0.2||12.4||33.6||13.0|
|Tuggeranong (Isabella Plains) AWS||-||20.2||1.4||0.2||2.0||-||4.6||2.4||7.4||-||16.4||-||-||3.0||33.2||-||-||-||-||-||-||-||-||-||-||-||-||7.2||35.6||14.4|
As of March 2010, the official station for Canberra is 70351 'Canberra Airport'. Averages from the previous site, 70014 Canberra Airport Comparison, are used for comparisons (all years of record).
A Monthly Climate Summary is prepared to list the main features of the weather in ACT Monthly Summary 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 11 am on Thursday 2 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 20 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
(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.