Monday, 3 July 2017 - Monthly Climate Summary for Remote Islands and Antarctica - Product code IDCKGC1RR0
Remote Islands and Antarctica in June 2017
Jump to a map of the areas covered in this summary
Australia's Indian Ocean islands
- There were several days of moderate to heavy rain, leading to both Christmas Island and the Cocos (Keeling) Island having a very much wetter than usual June: the 481.4 mm at Cocos Island Airport was their wettest June since 1988
- Daytime temperatures were generally below average, but overnight temperatures were above average
Australia's Pacific Ocean islands
- Rainfall was near the June average at both Lord Howe and Norfolk Islands, with much of it falling between the 18th and 21st
- Overnight temperatures were mostly above average, with a warm spell in the middle of the month but some chilly temperatures toward the end
- Lord Howe Island was a little cooler than average by day, but Norfolk Island's days were a little warmer than average
Australia's Antarctic and sub-Antarctic territories
- Australia's mainland Antarctic sites had a mostly very cold month, with the mean temperature at Mawson around 3 °C below average, Davis around 4 °C below average and Casey almost 5 °C below average
- Casey's mean daily maximum temperature of −15.6 °C and mean temperature of −19.3 °C equalled the June low records from 1990
- Davis reported 10 mm of snow on the 23rd and a total of 29 mm of precipitation for the month, well above the June average of around 10 mm (although there are some issues with the way precipitation has been measured and reported at Antarctic sties in the past)
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Records Summaries Daily observations Important notes the top
| Highest June total precipitation for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (mm) |
Most recent higher |
Average for June |
|||
| Cocos Island Airport | 481.4 | 649.4 | in 1988 | 214.5 | |
| Macquarie Island | 132.4 | 155.4 | in 1993 | 77.8 | |
| Record highest June mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
||
| Macquarie Island | 6.4 | 6.3 | in 1979 | 69 | 5.1 |
| Record lowest June mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
||
| Casey | -15.6 | = -15.6 | in 1990 | 28 | -10.5 |
| Record lowest June mean temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
||
| Casey | -19.3 | = -19.3 | in 1990 | 28 | -14.5 |
Records Summaries Daily observations Important notes the top
| Summary statistics for June 2017 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Precipitation (millimetres) |
||||||||||
| Mean for June 2017 |
Diff from average |
Highest for June 2017 |
Mean for June 2017 |
Diff from average |
Lowest for June 2017 |
Total for June 2017 |
Average for June |
Rank of June 2017 |
Fraction of June average |
|||
| Offshore Islands (district 200) | ||||||||||||
| Christmas Island Aero | 27.1 | 0.0 | 28.3 | 9th | 23.8 | +0.5 | 22.2 | 27th | 510.0 | 180.1 | v high | 283% |
| Cocos Island Airport | 28.4 | -0.2 | 30.4 | 2nd | 24.7 | +0.2 | 23.1 | 1st | 481.4 | 214.5 | v high | 224% |
| Lord Howe Island Aero | 19.7 | -0.2 | 21.3 | 24th | 15.1 | +0.2 | 9.7 | 28th | 180.8 | 170.5 | average | 106% |
| Norfolk Island Aero | 19.8 | +0.5 | 21.4 | 21st | 15.2 | +0.5 | 12.8 | 27th | 123.2 | 144.8 | average | 85% |
| Antarctica and Macquarie Island (district 300) | ||||||||||||
| Casey | -15.6 | -5.1 | -0.6 | 2nd | -22.9 | -4.4 | -30.2 | 13th | 13.8 | 25.9 | low | 53% |
| Davis | -16.6 | -4.1 | -8.9 | 24th | -23.1 | -4.2 | -35.4 | 22nd | 29.3 | 9.7 | v high | 302% |
| Macquarie Island | 6.4 | +1.3 | 8.0 | 20th | 2.3 | +0.7 | -0.6 | 9th | 132.4 | 77.8 | v high | 170% |
| Mawson | -16.8 | -3.3 | -11.5 | 24th | -21.8 | -2.2 | -28.9 | 18th | ||||
| Note: Precipitation values from Casey and Davis should be used with caution. | ||||||||||||
Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for June 2017 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Christmas Island Aero | 25.9 | 26.7 | 26.5 | 27.5 | 27.3 | 27.2 | 27.9 | 28.3 | 28.3 | 28.0 | 27.7 | 28.0 | 27.1 | 27.3 | 27.1 | 26.9 | 27.4 | 27.2 | 26.9 | 26.6 | 27.5 | 27.0 | 26.7 | 26.7 | 27.0 | 25.5 | 24.8 | 26.3 | 27.4 | 27.6 |
| Cocos Island Airport | 29.6 | 30.4 | 28.0 | 27.8 | 29.1 | 28.7 | 28.0 | 28.8 | 29.1 | 28.9 | 28.7 | 29.9 | 29.0 | 28.0 | 28.5 | 28.5 | 29.5 | 28.0 | 29.4 | 29.1 | 28.7 | 28.6 | 27.6 | 27.0 | 28.0 | 27.4 | 27.7 | 26.4 | 25.9 | 26.9 |
| Lord Howe Island Aero | 18.6 | 19.5 | 19.7 | 19.4 | 19.6 | 19.5 | 19.0 | 19.6 | 19.4 | 20.0 | 20.3 | 20.0 | 20.5 | 20.7 | 20.8 | 20.9 | 20.4 | 19.6 | 19.5 | 18.9 | 19.7 | 19.4 | 20.2 | 21.3 | 18.8 | 19.5 | 18.8 | 19.1 | 20.8 | 18.0 |
| Norfolk Island Aero | 20.3 | 20.1 | 19.8 | 20.2 | 19.0 | 20.0 | 20.8 | 21.0 | 18.1 | 19.1 | 19.5 | 19.5 | 20.5 | 20.2 | 19.0 | 20.0 | 20.2 | 19.5 | 20.2 | 20.2 | 21.4 | 20.5 | 19.8 | 19.3 | 20.1 | 19.3 | 19.6 | 18.6 | 19.2 | 19.9 |
| 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 |
| Casey | -7.0 | -0.6 | -3.3 | -11.2 | -12.6 | -14.4 | -16.8 | -20.6 | -18.9 | -18.8 | -20.2 | -21.7 | -19.2 | -18.2 | -7.1 | -7.5 | -16.0 | -17.5 | -23.1 | -12.7 | -15.4 | -18.9 | -16.4 | -21.2 | -20.6 | -14.7 | -19.1 | -23.3 | -12.2 | -18.9 |
| Davis | -14.8 | -19.1 | -21.7 | -24.9 | -16.6 | -14.7 | -13.9 | -16.7 | -15.9 | -11.2 | -11.2 | -11.3 | -15.3 | -22.7 | -24.5 | -26.5 | -28.8 | -25.7 | -15.5 | -21.9 | -19.9 | -14.5 | -9.4 | -8.9 | -11.8 | -15.6 | -11.5 | -9.9 | -12.9 | -9.7 |
| Macquarie Island | 6.9 | 7.0 | 6.7 | 7.1 | 6.5 | 6.1 | 7.4 | 7.2 | 5.4 | 7.1 | 5.1 | 3.6 | 6.5 | 6.8 | 6.4 | 6.8 | 6.6 | 6.8 | 7.2 | 8.0 | 5.8 | 7.2 | 7.4 | 3.1 | 6.1 | 5.9 | 6.6 | 6.0 | 6.5 | 5.4 |
| Mawson | -12.9 | -17.7 | -20.4 | -21.7 | -21.4 | -14.4 | -13.9 | -15.0 | -14.5 | -12.5 | -13.2 | -14.2 | -13.4 | -16.1 | -22.5 | -24.3 | -23.4 | -20.3 | -15.4 | -20.0 | -17.9 | -17.3 | -12.0 | -11.5 | -13.8 | -17.3 | -18.3 | -22.1 | -13.3 | -12.6 |
|
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 June 2017 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Christmas Island Aero | 22.5 | 22.4 | 24.6 | 24.6 | 24.1 | 24.3 | 24.4 | 24.6 | 25.0 | 23.6 | 23.6 | 24.0 | 24.4 | 24.5 | 23.4 | 24.2 | 24.4 | 24.6 | 24.1 | 24.2 | 24.0 | 23.7 | 23.5 | 23.1 | 22.3 | 23.1 | 22.2 | 23.0 | 22.8 | 24.3 |
| Cocos Island Airport | 23.1 | 26.2 | 24.5 | 24.9 | 25.2 | 26.1 | 25.4 | 26.5 | 24.7 | 26.1 | 24.8 | 25.9 | 26.5 | 23.8 | 24.3 | 24.5 | 25.2 | 23.1 | 24.0 | 25.1 | 24.0 | 25.0 | 23.9 | 23.8 | 23.9 | 24.4 | 25.2 | 24.1 | 23.7 | 23.6 |
| Lord Howe Island Aero | 13.6 | 14.4 | 15.0 | 15.7 | 15.2 | 15.2 | 11.3 | 15.5 | 13.5 | 16.1 | 16.1 | 16.3 | 17.0 | 17.5 | 17.3 | 17.3 | 18.8 | 17.6 | 16.6 | 16.7 | 16.9 | 16.6 | 15.8 | 14.5 | 10.8 | 13.0 | 12.8 | 9.7 | 10.3 | 14.6 |
| Norfolk Island Aero | 14.4 | 16.6 | 16.2 | 16.1 | 13.2 | 13.2 | 13.2 | 14.3 | 16.1 | 14.8 | 15.2 | 13.1 | 15.0 | 16.8 | 15.9 | 16.1 | 13.5 | 16.9 | 16.9 | 18.0 | 17.1 | 17.5 | 17.1 | 14.5 | 14.8 | 14.1 | 12.8 | 14.8 | 14.0 | 12.9 |
| 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 |
| Casey | -15.7 | -16.4 | -9.3 | -13.5 | -16.3 | -19.7 | -20.0 | -22.3 | -24.5 | -23.9 | -25.4 | -25.3 | -30.2 | -26.5 | -23.5 | -22.2 | -20.1 | -19.2 | -25.1 | -28.7 | -24.3 | -22.3 | -25.8 | -24.2 | -26.3 | -26.4 | -26.8 | -26.7 | -28.5 | -29.0 |
| Davis | -17.7 | -19.8 | -23.2 | -25.1 | -27.2 | -25.8 | -20.1 | -20.1 | -21.6 | -21.7 | -20.8 | -17.7 | -17.9 | -25.0 | -26.3 | -29.2 | -31.0 | -34.3 | -33.7 | -26.2 | -35.0 | -35.4 | -21.8 | -17.1 | -12.1 | -15.9 | -18.5 | -22.3 | -14.1 | -16.3 |
| Macquarie Island | 4.3 | 4.2 | 3.2 | 2.7 | 4.2 | 2.8 | 2.5 | 6.0 | -0.6 | -0.6 | 3.3 | -0.5 | 0.4 | 1.3 | 1.7 | 1.4 | 4.6 | 1.7 | 0.2 | 1.6 | 1.0 | 0.0 | 5.7 | 2.6 | -0.6 | 1.4 | 3.6 | 5.3 | 4.7 | 1.4 |
| Mawson | -18.0 | -19.8 | -22.8 | -25.0 | -25.6 | -22.9 | -23.1 | -16.2 | -17.5 | -18.2 | -16.7 | -17.2 | -16.1 | -16.7 | -24.6 | -27.6 | -28.6 | -28.9 | -26.2 | -22.8 | -24.7 | -23.9 | -19.8 | -18.2 | -14.8 | -19.6 | -20.5 | -23.8 | -27.4 | -26.2 |
|
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 June 2017 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| Christmas Island Aero | 130 | 126 | 1.2 | - | 0.2 | - | - | - | - | 6.6 | 2.4 | 0.2 | - | - | 11.8 | 2.4 | - | - | - | - | - | - | 8.0 | 7.4 | 137 | 2.4 | 50.0 | 6.8 | 18.0 | - | |
| Cocos Island Airport | 54.8 | 0.2 | 22.8 | 15.6 | 2.6 | 0.4 | - | - | 9.8 | 3.2 | 13.4 | 7.8 | - | 1.0 | 0.2 | 3.8 | 8.4 | 78.8 | 10.8 | - | 4.4 | 0.4 | 25.2 | 16.6 | 0.6 | 0.2 | 0.6 | 12.0 | 131 | 57.0 | |
| Lord Howe Island (Milky Way) | 10.2 | 1.4 | 8.6 | - | - | 0.6 | 5.8 | 0.4 | 8.4 | 5.6 | 2.8 | 1.8 | 0.2 | 2.2 | 0.4 | - | 0.2 | 4.0 | 73.0 | 19.6 | 13.0 | 0.8 | - | - | 0.2 | 2.2 | 1.4 | - | - | 24.6 | |
| Lord Howe Island Aero | 14.6 | 2.0 | 4.4 | - | 0.2 | - | 1.0 | 1.8 | 11.0 | 4.0 | 6.2 | - | - | 0.6 | 1.0 | - | - | 1.0 | 63.0 | 15.0 | 20.8 | 2.0 | 0.2 | - | 1.4 | 2.6 | 3.2 | - | 0.2 | 24.6 | |
| Norfolk Island Aero | 0.4 | 2.2 | - | - | 5.0 | 0.2 | - | - | 13.6 | 28.4 | - | 0.2 | 0.2 | - | 1.2 | - | 2.0 | 4.4 | 30.0 | 13.6 | 12.4 | 1.4 | 2.2 | 0.2 | 3.8 | - | 1.8 | - | - | - | |
| 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 | |
| Casey | - | - | 0.2 | - | 0.2 | - | - | - | - | - | 0.8 | 1.2 | - | - | - | - | 0.2 | - | - | 10.8 | 0.4 | - | - | - | - | ||||||
| Davis | - | - | - | - | - | - | - | - | - | 0.8 | 1.2 | 1.2 | - | - | - | - | - | - | 0.3 | 4.6 | 10.2 | 1.0 | 2.4 | 0.2 | - | 2.2 | 5.2 | - | |||
| Macquarie Island | 1.2 | 1.8 | 5.2 | - | 8.2 | 2.6 | 1.2 | 2.4 | → | 13.6 | 3.0 | 2.8 | 6.8 | 0.2 | 6.4 | 3.8 | 1.0 | 18.2 | 8.4 | 4.0 | 10.4 | 2.2 | 0.2 | 5.0 | - | 5.0 | 3.8 | 2.4 | 4.2 | 2.4 | |
|
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 11 am on Monday 3 July 2017. 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.
Precipitation values from Casey and Davis should be used with caution.
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
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
