Monday, 3 December 2012 - Monthly Climate Summary for ACT Monthly Summary - Product code IDCKGC25R0
Canberra in November 2012: Dry and warm
- 9th warmest November on record
- Below average rainfall
ExtremesSummaries Important notes the top
Rainfall
Canberra Airport recorded only 29.2 mm of rainfall, which is below the long term average of 64.4 mm for November and the driest since 2009. The rain fell over 6 days, below the average of 10 days, with the highest daily total being 9.8 mm recorded for the 24 hours to 9am on the 28th. This rainfall was associated with a broad trough of low pressure, which triggered thunderstorm activity in the region.
The wettest overall in the ACT was at Mt Ginini, which recorded 86.4 mm for the month of November.
Temperature
The average maximum temperature at Canberra Airport was 25.4 °C, which is 2.7 °C above the historical average and the 9th warmest on record. November ended with a significant hot spell, with four days exceeding 30 °C at the end of the month. Temperatures reached 35.1 °C on the 30th, the warmest November day in Canberra since 2009.
There were no cool days of less than 18 °C recorded during the month, only the 4th such instance on record for November. The coolest day at Canberra Airport was 18.6 °C, recorded on the 3rd November, with the coolest day anywhere in the ACT being 8.9 °C at Mt Ginini, also on the 3rd.
Nights were 0.5 °C warmer than normal during November, averaging 9.3 °C, compared to the historical average of 8.8 °C. No nights dropped below 0 °C at the airport, normal for November. The coolest night anywhere across the ACT was -1.5 °C at Mount Ginini AWS on the 19th.
Wind
Winds at Canberra Airport were more northerly than normal during November, with 47% of 3pm winds between WNW and NNW (normal frequency 34%). The highest wind gust at the Airport was 61 km/h, recorded on the 1st. The highest wind gust anywhere in the ACT was 76 km/h at Mt Ginini, also on the 1st.
Further information
Climate OfficerNSW Climate Services Centre
NSW Regional Office
Bureau of Meteorology
Phone (02) 9296 1555
Email climate.nsw@bom.gov.au
| Extremes in November 2012 | |
|---|---|
| Hottest day | 35.1 °C at Canberra Airport on the 30th |
| Warmest days on average | 25.4 °C at Canberra Airport |
| Coolest days on average |
16.5 °C at Mount Ginini AWS |
| Coldest day |
8.9 °C at Mount Ginini AWS on the 3rd |
| Coldest night |
-1.5 °C at Mount Ginini AWS on the 19th |
| Coolest nights on average | 6.0 °C at Mount Ginini AWS |
| Warmest nights on average | 10.2 °C at Tuggeranong (Isabella Plains) AWS |
| Warmest night | 18.5 °C at Tuggeranong (Isabella Plains) AWS on the 30th |
| Warmest on average overall | 17.8 °C at Tuggeranong (Isabella Plains) AWS |
| Coolest on average overall | 11.2 °C at Mount Ginini AWS |
| Wettest overall | 86.4 mm at Mount Ginini AWS |
| Wettest day | 42.2 mm at Mount Ginini AWS on the 8th |
| Highest wind gust | 76 km/h at Mount Ginini AWS on the 1st |
ExtremesSummaries Important notes the top
| Summary statistics for November 2012 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for November (°C) |
Minimum temperatures for November (°C) |
Rainfall for November (millimetres) |
||||||||||
| Mean for November 2012 |
Diff from average |
Highest for November 2012 |
Mean for November 2012 |
Diff from average |
Lowest for November 2012 |
Total for November 2012 |
Average for November |
Rank of November 2012 |
Fraction of November average |
|||
| Canberra Airport | 25.4 | +2.7 | 35.1 | 30th | 9.3 | -0.5 | 1.0 | 2nd | 29.2 | 64.4 | Low | 45% |
| Mount Ginini AWS | 16.5 | 25.1 | 29th | 6.0 | -1.5 | 19th | 86.4 | |||||
| Tuggeranong (Isabella Plains) AWS | 25.3 | 34.5 | 29th | 10.2 | 3.0 | 2nd | 39.4 | |||||
ExtremesSummaries 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 (all years of record).
An Annual 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 8 am on Monday 3 December 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
Climate OfficerNSW Climate Services Centre
NSW Regional Office
Bureau of Meteorology
Phone (02) 9296 1555
Email climate.nsw@bom.gov.au
