Thursday, 1 November 2018 - Monthly Climate Summary for Remote Islands and Antarctica - Product code IDCKGC1RR0
Remote Islands and Antarctica in October 2018
Jump to a map of the areas covered in this summary
Australia's Indian Ocean islands
- Temperatures on the Cocos (Keeling) Islands were about half a degree above the October average: warmer than October 2017 but cooler than October 2016
- Only 6.6 mm of rain was recorded at Cocos Islands Airport, well down on the October average of 82 mm
- The dry October follows a September with only 12.8 mm of rain, and marks a continuation of the series of months with below-average rain that started in April
- Problems with the Automatic Weather Station at Christmas Island meant no temperature data are available for October 2018. The site reported only 0.2 mm of rain for the month
Australia's Pacific Ocean islands
- Temperatures on Lord Howe Island were about half a degree warmer than the October average by day and almost a degree warmer than average by night, with mild weather especially common in the second half of the month
- Only 34.4 mm of rain was recorded at Lord Howe Island Aero, well down in the October average of 100 mm
- Norfolk Island's minimum temperatures were more than a degree warmer than the October average, with very few especially cool nights
- Maximum temperatures on Norfolk Island were just a little above average overall, with a cool spell around the middle of the month
- Norfolk Island Aero registered 83.4 mm of rain, right on average for October
Australia's Antarctic and sub-Antarctic territories
- Cold weather at Australia's Antarctic stations in the first half of the month gave way to relatively mild temperatures in the second half
- Mawson had its coldest October day (lowest maximum temperature) on record on the 1st when the temperature reached just -21.1 °C, but then had its warmest October day on record on the 19th with a maximum of +1.5 °C (the earliest in spring it has been so warm)
- Overall, temperatures were a little above average at Mawson, about half a degree above average at Davis, and around a degree above average at Casey
- Macquarie Island's temperatures were about 0.7 °C above the October average
- Total rainfall on Macquarie Island was a little below average
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Records Summaries Daily observations Important notes the top
| Record highest October temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for October |
|||
| Mawson | 1.5 | on the 19th | 0.6 | on the 31st in 2014 | 65 | -9.9 |
| Record lowest October daily maximum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for October |
|||
| Mawson | -21.1 | on the 1st | -21.0 | on the 1st in 1980 | 65 | -9.9 |
Records Summaries Daily observations Important notes the top
| Summary statistics for October 2018 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Precipitation (millimetres) |
||||||||||
| Mean for October 2018 |
Diff from average |
Highest for October 2018 |
Mean for October 2018 |
Diff from average |
Lowest for October 2018 |
Total for October 2018 |
Average for October |
Rank of October 2018 |
Fraction of October average |
|||
| Offshore Islands (district 200) | ||||||||||||
| Cocos Island Airport | 29.1 | +0.4 | 30.1 | 12th | 24.7 | +0.5 | 22.4 | 24th | 6.6 | 81.4 | low | 8% |
| Lord Howe Island Aero | 21.4 | +0.5 | 24.6 | 10th | 16.4 | +0.7 | 11.4 | 4th | 34.4 | 100.2 | v low | 34% |
| Norfolk Island Aero | 20.4 | +0.2 | 22.3 | 27th | 16.0 | +1.2 | 13.8 | 11th | 83.4 | 83.4 | average | 100% |
| Antarctica and Macquarie Island (district 300) | ||||||||||||
| Casey | -6.9 | +1.2 | -0.8 | 21st | -14.1 | +0.9 | -29.7 | 6th | 28.4 | 16.5 | high | 172% |
| Davis | -8.2 | +0.8 | -0.3 | 16th | -15.0 | +0.4 | -26.7 | 3rd | 0 | 4.5 | lowest | 0% |
| Macquarie Island | 6.5 | +0.7 | 8.1 | 26th | 2.7 | +0.7 | -2.2 | 4th | 71.8 | 78.4 | average | 92% |
| Mawson | -9.4 | +0.5 | 1.5 | 19th | -16.6 | -0.2 | -27.3 | 1st | ||||
| Note: Precipitation values from Casey and Davis should be used with caution. | ||||||||||||
Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for October 2018 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Offshore Islands (200) | 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 | 31 |
| Cocos Island Airport | 28.5 | 28.8 | 28.8 | 29.0 | 28.8 | 29.0 | 29.1 | 29.3 | 29.1 | 29.6 | 29.6 | 30.1 | 29.2 | 28.8 | 29.4 | 29.0 | 29.3 | 28.8 | 28.5 | 28.8 | 29.0 | 28.6 | 28.9 | 28.9 | 29.1 | 29.2 | 29.2 | 29.2 | 29.4 | 29.9 | |
| Lord Howe Island Aero | 19.3 | 19.4 | 19.4 | 20.1 | 21.1 | 21.3 | 21.4 | 21.3 | 22.4 | 24.6 | 19.0 | 18.7 | 18.1 | 19.1 | 19.5 | 20.4 | 21.6 | 21.5 | 21.3 | 22.2 | 23.2 | 23.3 | 23.5 | 23.7 | 23.9 | 23.2 | 23.3 | 22.0 | 20.7 | 22.0 | 24.0 |
| Norfolk Island Aero | 21.0 | 17.0 | 18.6 | 20.3 | 20.2 | 20.8 | 19.7 | 19.8 | 20.1 | 21.0 | 22.3 | 19.6 | 19.1 | 19.1 | 19.7 | 20.6 | 20.1 | 17.4 | 20.1 | 21.5 | 21.8 | 21.6 | 21.6 | 22.0 | 21.2 | 21.3 | 22.3 | 21.7 | 20.3 | 19.9 | 20.2 |
| Antarctica and Macquarie Island (300) | 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 | 31 |
| Casey | -18.0 | -19.7 | -20.4 | -18.2 | -20.3 | -9.5 | -8.2 | -8.6 | -5.6 | -6.5 | -6.7 | -5.3 | -2.4 | -3.1 | -0.9 | -3.2 | -2.2 | -6.1 | -5.0 | -3.4 | -0.8 | -7.5 | -7.3 | -6.9 | -5.5 | -4.5 | -2.2 | -1.0 | -1.5 | -1.6 | -3.1 |
| Davis | -20.7 | -21.2 | -20.1 | -19.9 | -10.9 | -9.1 | -12.1 | -11.8 | -11.6 | -14.1 | -11.7 | -7.8 | -5.2 | -2.4 | -2.2 | -0.3 | -2.9 | -4.3 | -8.0 | -5.7 | -6.2 | -8.7 | -6.2 | -3.0 | -2.0 | -3.9 | -5.9 | -5.5 | -4.8 | -4.7 | -2.3 |
| Macquarie Island | 6.8 | 6.5 | 5.9 | 5.4 | 6.6 | 6.2 | 5.2 | 5.4 | 4.1 | 4.7 | 3.6 | 6.1 | 5.4 | 7.7 | 7.0 | 5.4 | 6.9 | 8.0 | 7.2 | 7.3 | 7.7 | 7.7 | 7.5 | 8.0 | 8.0 | 8.1 | 6.7 | 6.8 | 6.3 | 6.4 | 7.3 |
| Mawson | -21.1 | -19.7 | -19.8 | -16.2 | -15.3 | -12.9 | -13.7 | -12.4 | -15.8 | -14.6 | -9.2 | -6.6 | -6.1 | -9.1 | -8.1 | -5.4 | -3.9 | 1.5 | 0.5 | -4.7 | -7.1 | -7.9 | -7.7 | -5.0 | -4.2 | -6.7 | -9.6 | -7.6 | -7.0 | -7.5 | |
|
Values are the maximum temperature, usually in the 24 hours from 9 am on the day indicated, and typically occurred in the afternoon of that day. | |||||||||||||||||||||||||||||||
| Temperatures coloured according to their difference from the long-term average for the period |
-10.0 | -9.0 | -8.0 | -7.0 | -6.0 | -5.0 | -4.0 | -3.0 | -2.0 | -1.0 | 0.0 | +1.0 | +2.0 | +3.0 | +4.0 | +5.0 | +6.0 | +7.0 | +8.0 | +9.0 | +10.0 | °C | Grey outline marks highest and lowest for the period |
||||||||
| Daily minimum temperatures for October 2018 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Offshore Islands (200) | 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 | 31 |
| Cocos Island Airport | 24.1 | 25.0 | 25.3 | 25.3 | 25.2 | 24.6 | 25.3 | 25.4 | 25.6 | 25.4 | 24.9 | 24.5 | 24.3 | 24.8 | 23.8 | 25.1 | 24.9 | 24.7 | 24.6 | 23.9 | 24.9 | 24.7 | 22.4 | 24.6 | 24.8 | 25.3 | 24.4 | 23.9 | 24.7 | 24.3 | |
| Lord Howe Island Aero | 14.7 | 14.5 | 15.4 | 11.4 | 15.5 | 17.4 | 17.4 | 18.4 | 18.0 | 18.5 | 15.6 | 14.7 | 14.6 | 14.3 | 15.7 | 17.2 | 17.6 | 17.3 | 17.9 | 17.6 | 18.8 | 18.1 | 19.6 | 19.0 | 15.6 | 18.4 | 14.0 | 15.5 | 17.0 | 16.2 | 11.5 |
| Norfolk Island Aero | 15.6 | 14.8 | 14.8 | 15.8 | 16.5 | 16.3 | 16.6 | 16.4 | 16.0 | 16.3 | 13.8 | 16.6 | 14.5 | 14.7 | 15.1 | 16.2 | 15.5 | 15.3 | 15.7 | 16.3 | 18.2 | 17.3 | 17.1 | 17.7 | 16.0 | 15.4 | 17.0 | 16.4 | 16.1 | 15.8 | 15.5 |
| Antarctica and Macquarie Island (300) | 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 | 31 |
| Casey | -22.8 | -22.6 | -26.3 | -27.5 | -22.8 | -29.7 | -21.7 | -16.3 | -18.8 | -16.7 | -16.8 | -16.8 | -18.1 | -8.2 | -5.8 | -4.7 | -6.6 | -13.7 | -11.1 | -10.1 | -8.4 | -12.2 | -9.7 | -13.2 | -10.6 | -10.7 | -8.9 | -8.2 | -8.1 | -6.5 | -4.5 |
| Davis | -23.0 | -26.6 | -26.7 | -24.8 | -23.3 | -19.9 | -14.6 | -15.7 | -19.1 | -17.1 | -19.4 | -16.5 | -13.4 | -11.9 | -8.5 | -7.8 | -5.5 | -10.3 | -15.6 | -16.9 | -16.1 | -14.6 | -12.8 | -11.3 | -7.6 | -10.8 | -13.1 | -9.9 | -12.2 | -9.2 | -11.4 |
| Macquarie Island | 4.5 | -0.4 | 3.8 | -2.2 | 1.1 | 3.7 | 0.1 | 3.1 | 0.5 | 0.8 | -1.1 | -1.8 | 1.7 | 2.0 | 5.0 | 5.2 | 2.5 | 3.6 | 4.4 | 3.7 | 5.5 | 6.1 | 6.2 | 5.2 | 1.8 | 5.8 | 3.5 | 1.7 | 2.2 | 1.7 | 2.8 |
| Mawson | -27.3 | -25.7 | -25.6 | -24.8 | -22.0 | -19.9 | -17.7 | -17.1 | -21.6 | -21.3 | -19.8 | -15.8 | -13.4 | -16.3 | -16.9 | -15.7 | -11.6 | -10.4 | -10.4 | -8.7 | -13.1 | -14.4 | -14.2 | -14.3 | -11.3 | -12.0 | -16.1 | -17.2 | -13.8 | -10.6 | |
|
Values are the minimum temperature, usually in the 24 hours to 9 am on the day indicated, and typically occurred that morning. | |||||||||||||||||||||||||||||||
| Temperatures coloured according to their difference from the long-term average for the period |
-10.0 | -9.0 | -8.0 | -7.0 | -6.0 | -5.0 | -4.0 | -3.0 | -2.0 | -1.0 | 0.0 | +1.0 | +2.0 | +3.0 | +4.0 | +5.0 | +6.0 | +7.0 | +8.0 | +9.0 | +10.0 | °C | Grey outline marks highest and lowest for the period |
||||||||
| Daily precipitation for October 2018 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Offshore Islands (200) | 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 | 31 | |
| Christmas Island Aero | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | ||||
| Cocos Island Airport | - | - | - | - | 0.6 | - | - | - | - | - | - | - | - | 2.2 | 1.8 | - | - | - | - | 0.8 | - | - | 0.6 | - | - | - | - | 0.6 | - | - | ||
| Lord Howe Island (Milky Way) | 1.4 | 1.6 | - | - | - | 1.6 | 4.8 | - | - | - | 10.0 | - | 1.0 | 1.2 | 5.0 | 1.0 | 2.4 | 1.2 | 0.6 | 0.6 | - | - | - | 4.0 | - | 2.8 | 11.8 | 0.2 | - | 1.2 | - | |
| Lord Howe Island Aero | 1.2 | 0.8 | 0.2 | - | - | 0.4 | 0.2 | 0.4 | - | - | 10.0 | 0.2 | 2.0 | 0.8 | 5.4 | 0.4 | 1.8 | 0.6 | - | 0.2 | 0.6 | - | - | 1.2 | - | 1.0 | 5.8 | 0.2 | 0.2 | 0.6 | 0.2 | |
| Norfolk Island Aero | - | 8.0 | 26.0 | 3.4 | - | 3.2 | 2.2 | - | - | - | 0.2 | 1.0 | - | - | - | - | 2.0 | 19.0 | 7.2 | 6.0 | - | - | - | - | - | 1.8 | 0.2 | 3.2 | - | - | ||
| Antarctica and Macquarie Island (300) | 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 | 31 | |
| Casey | - | 0.2 | - | - | 1.4 | 20.0 | - | - | - | 0.2 | - | 0.6 | - | - | - | 2.0 | - | - | - | - | 0.2 | 3.8 | - | - | - | - | ||||||
| Davis | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| Macquarie Island | 2.8 | 3.0 | 1.4 | 3.0 | 7.4 | 0.6 | 1.4 | - | 5.6 | 2.6 | 5.2 | 1.8 | 2.2 | - | - | 10.0 | 0.4 | - | 0.2 | 0.2 | 3.0 | 0.4 | 0.2 | 2.0 | 4.2 | 2.2 | 0.4 | 0.6 | 4.6 | 1.0 | 5.4 | |
|
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 shown on the final day. Values over 100 mm have been rounded to the nearest whole millimetre. Days marked with - have a precipitation report of zero; days left blank have no precipitation report (which often indicates no precipitation fell). | ||||||||||||||||||||||||||||||||
| Precipitations coloured according to the amount |
0 | 1.0 | 5.0 | 10.0 | 15.0 | 25.0 | 50.0 | 100 | 150 | 200 | 300 | 400 | 600 | millimetres | ||||||||||||||||||
Records Summaries Daily observations Important notes the top
Notes
The Monthly climate summary, generally published on the first working day of each month, lists the main features of the weather in Remote Islands and Antarctica using the most timely and accurate information available on the date of publication; it will generally not be updated. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.
This statement has been prepared based on information available at 4 pm on Thursday 1 November 2018. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
In some situations, some or all of the precipitation is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.
Averages for individual sites 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 precipitation.
The Rank indicates how precipitation this time compares with the climate record for the site,
based on the
decile ranking
(very low precipitation 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 precipitation has fallen this time as a
percentage of the long-term mean.
Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
