Monday, 2 July 2012 - Monthly Climate Summary for Canberra - Product code IDCKGC25R0
Canberra in June 2012: Coldest June night in over a decade
- First wet June since 2007
- Cold nights and mild days
- Coldest June night since 2000
Extremes Records Summaries Important notes the top
Rainfall - First wet June since 2007
Canberra Airport recorded 47.8 mm of rainfall during June, slightly above the historical average of 40.4 mm. This is the first June with above average rainfall in Canberra since 2007. The rain fell over 11 days, of which 5 exceeded 1 mm, normal for June.
Most of the rain fell in the first week of the month, with a surface trough bringing widespread rainfall on the 3rd, reaching 17.6 mm at Canberra Airport and 26.5 mm at Tidbinbilla. Conditions cleared on the 4th, before a low pressure system developed off the south coast and moved northward, bringing further rain on the 5th and 6th. The rest of the month was generally clear, with 7 mm on the 22nd as a cold front crossed the state.
Temperature - Cold nights and mild days
The average maximum temperature at Canberra Airport during June was 12.9 °C, 0.6 °C above the historical average. Only three days were below 10 °C, below the June average of 5 days, but only two exceeded 15 °C, the fewest warm days since 2007.
The average minimum temperature during June was 0.6 °C, below the historical average of 1.0 °C. Thirteen nights reached 0 °C with seven below -2 °C, normal for June. The lowest temperature was -6.3 °C on the 20th, the coldest night since -7.1 °C on June 15 2000. Canberra also experienced three consecutive nights below -4 °C between the 8th and 10th, the longest cold spell for June since 2006 and the earliest spell this cold since 16-18 May 1999.
The mean temperature for Canberra was consequently 6.7 °C, 0.1 °C above average for June but the coolest since 2006.
Other phenomena
The prevailing wind direction at Canberra Airport was northwesterly, with 50% of 3pm winds between NNW and WNW, while 9am winds were generally calm, normal for June. There were six strong wind days during the month, the most since 2004, with a maximum wind gust of 59 km/hr on the 5th, reaching 74 km/hr at Tidbinbilla.
Canberra Airport recorded an average of 4.6 hours of sunshine during June, below the historical average of 5.2 hours. Six fogs were reported at the airport, slightly below the June average of 7-8 fogs.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
| Extremes in June 2012 | |
|---|---|
| Hottest day | 16.3 °C at Canberra Airport on the 15th |
| Warmest days on average | 12.9 °C at Canberra Airport |
| Coolest days on average | 3.2 °C at Mount Ginini AWS |
| Coldest day | -1.0 °C at Mount Ginini AWS on the 30th |
| Coldest night | -6.3 °C at Canberra Airport on the 20th |
| Coolest nights on average | -1.2 °C at Mount Ginini AWS |
| Warmest nights on average | 1.5 °C at Tidbinbilla Nature Reserve |
| Warmest night | 7.7 °C at Canberra Airport on the 3rd |
| Warmest on average overall |
6.8 °C at Canberra Airport 6.8 °C at Tidbinbilla Nature Reserve |
| Coolest on average overall | 1.1 °C at Mount Ginini AWS |
| Wettest overall | 58.0 mm at Mount Ginini AWS |
| Wettest day | 26.5 mm at Tidbinbilla Nature Reserve on the 3rd |
| Highest wind gust | 76 km/h at Mount Ginini AWS on the 21st |
Extremes Records Summaries Important notes the top
| Summary statistics for June 2012 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for June (°C) |
Minimum temperatures for June (°C) |
Rainfall for June (millimetres) |
||||||||||
| Mean for June 2012 |
Diff from average |
Highest for June 2012 |
Mean for June 2012 |
Diff from average |
Lowest for June 2012 |
Total for June 2012 |
Average for June |
Rank of June 2012 |
Fraction of June average |
|||
| Canberra Airport | 12.9 | +0.6 | 16.3 | 15th | 0.6 | -0.4 | -6.3 | 20th | 47.8 | 40.4 | average | 118% |
| Mount Ginini AWS | 3.2 | 7.8 | 1st | -1.2 | -4.3 | 24th | 58.0 | |||||
| Tidbinbilla Nature Reserve | 12.3 | +0.5 | 15.0 | 15th | 1.5 | +0.1 | -5.0 | 20th | 51.4 | 65.1 | average | 79% |
| Tuggeranong (Isabella Plains) AWS | 12.7 | 16.2 | 15th | 0.6 | -5.9 | 20th | 42.6 | |||||
Extremes Records Summaries Important notes the top
Notes
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.
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 9 am on Monday 2 July 2012. 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
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
