Remote Islands and Antarctica in November 2018

Australia's Indian Ocean islands

  • Temperatures were 0.3 °C above average at Christmas Islands Airport, despite some cool days in the second week of November
  • Christmas Island received 89.6 mm of rainfall, with most falling in the second week of November; the total was about half the long-term mean, and less than 20% of the record 611 mm received in November 2016 or the 596.8 mm received in November 2017
  • There were several relatively cool days on the Cocos (Keeling) Islands, with the mean maximum temperature for November right on the long-term average
  • The mean minimum temperature at Cocos Islands Airport was 0.4 °C above average
  • Total rainfall at Cocos Islands Airport was 88.8 mm, somewhat below the long-term average, most falling in two days around the 27th

Australia's Pacific Ocean islands

  • Norfolk Island Airport had its highest November mean daily maximum temperature since 1995, 0.8 °C above average; combined with a mean minimum temperature 0.7 °C above average this gave the Airport its warmest November mean temperature since 2001
  • Norfolk Island received 143.8 mm of rain, almost twice its long-term November average; 78 mm of that fell between 4 pm on the 23rd and noon on the 24th
  • Temperatures were more than half a degree above average on Lord Howe Island
  • Lord Howe Island's rainfall was above the long-term average, with frequent wet weather from the 22nd to the end of the month

Australia's Antarctic and sub-Antarctic territories

Further information

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Lowest November total precipitation for at least 20 years
Observed
(mm)
Most recent
lower
Average for
November
Macquarie Island 48.0 47.6 in 1985 72.7



Record highest November temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Macquarie Island 11.1 on the 28th 10.7 on the 30th in 1974 71 6.5



Record highest November mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Macquarie Island 8.2 7.8 in 2005 70 6.5

Highest November mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
November
Norfolk Island Aero 22.6 22.9 in 1995 21.8



Record highest November daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Macquarie Island 7.2 on the 30th 7.1 on the 27th in 2001 71 2.7



Record highest November mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Macquarie Island 4.1 = 4.1 in 2005 70 2.7



Record highest November mean temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Macquarie Island 6.1 6.0 in 2005 70 4.6



Summary statistics for November 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Precipitation
(millimetres)
Mean for
November
2018
Diff
from
average
Highest for
November
2018
Mean for
November
2018
Diff
from
average
Lowest for
November
2018
Total for
November
2018
Average
for
November
Rank of
November
2018
Fraction of
November
average
Offshore Islands (district 200)
Christmas Island Aero 27.6 +0.3 29.0 17th 23.2 +0.3 21.6 30th 89.6 164.9 average 54%
Cocos Island Airport 29.1 0.0 30.2 18th 24.9 +0.4 22.7 3rd 88.8 100.4 average 88%
Lord Howe Island Aero 23.1 +0.8 25.3 7th 17.9 +0.5 13.0 21st 141.6 112.2 average 126%
Norfolk Island Aero 22.6 +0.8 24.6 23rd 16.8 +0.7 12.2 3rd 143.4 73.5 high 195%
Antarctica and Macquarie Island (district 300)
Casey -2.3 +0.1 2.2 24th -7.3 +1.4 -13.4 16th 11.8 12.4 average 95%
Davis -3.8 -1.7 0.7 25th -9.3 -1.8 -14.9 18th 4.4 2.3 v high 191%
Macquarie Island 8.2 +1.7 11.1 28th 4.1 +1.4 0.5 9th 48.0 72.7 low 66%
Mawson -4.1 -1.6 0.1 19th -10.7 -2.0 -16.1 15th
Note: Precipitation values from Casey and Davis should be used with caution.

Daily maximum temperatures for November 2018
Offshore Islands (200)123456789101112131415161718192021222324252627282930
Christmas Island Aero28.628.227.728.327.927.827.127.127.226.026.626.725.927.728.929.028.127.928.027.927.727.527.627.627.427.427.3
Cocos Island Airport28.228.329.328.728.729.028.628.829.228.928.929.129.328.829.829.430.229.929.630.029.629.629.629.429.727.828.428.828.9
Lord Howe Island Aero24.123.624.024.523.324.725.322.521.321.622.621.821.823.123.124.023.520.521.822.424.523.624.522.123.522.822.523.922.522.3
Norfolk Island Aero20.619.821.022.222.823.123.723.123.920.823.423.022.823.323.022.921.222.721.421.022.423.624.623.323.022.623.023.322.323.8
Antarctica and Macquarie Island (300)123456789101112131415161718192021222324252627282930
Casey-4.0-5.8-1.9-0.4-1.2-5.0-4.2-3.6-3.3-3.9-4.9-4.6-2.9-5.2-4.3-4.2-5.4-1.5-1.5-0.7-0.5-1.31.52.2-1.3-1.3-0.21.20.0-0.4
Davis-6.0-6.1-6.8-4.8-3.2-5.1-4.3-3.7-4.7-6.3-7.1-5.7-6.3-8.5-7.4-5.9-6.3-1.3-1.1-1.0-1.5-1.1-2.7-0.40.7-2.0-0.7-2.5-1.2-2.0
Macquarie Island7.98.57.97.18.18.36.95.77.08.27.97.38.48.57.88.48.16.39.08.37.69.07.79.16.98.410.311.19.510.2
Mawson-6.6-4.4-6.3-7.4-4.2-6.0-4.4-4.6-4.1-5.2-6.7-7.0-6.6-7.1-6.6-7.3-5.5-1.50.1-0.5-1.7-1.9-2.4-2.6-2.4-2.0-1.4-3.1-2.5-0.8
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 November 2018
Offshore Islands (200)123456789101112131415161718192021222324252627282930
Christmas Island Aero23.924.224.023.023.723.022.823.123.323.023.322.221.923.023.224.223.823.823.822.922.623.222.423.223.222.921.6
Cocos Island Airport25.025.122.725.324.324.623.724.624.324.624.624.824.525.025.925.825.526.325.826.125.824.825.225.224.025.123.522.925.425.2
Lord Howe Island Aero16.618.320.320.921.021.221.421.616.115.518.318.117.318.317.816.814.918.015.515.113.021.120.316.115.517.217.617.516.718.5
Norfolk Island Aero15.513.812.216.217.214.815.217.818.519.117.218.417.718.417.817.915.815.016.415.514.116.219.617.618.916.718.518.116.417.4
Antarctica and Macquarie Island (300)123456789101112131415161718192021222324252627282930
Casey-7.8-7.5-8.4-7.6-8.2-10.2-8.0-8.0-8.6-8.6-8.2-7.7-8.9-7.3-11.1-13.4-8.0-12.5-7.6-5.1-6.0-4.5-4.9-2.6-5.4-5.7-5.2-4.4-2.9-3.3
Davis-7.3-9.8-10.1-13.5-9.7-8.0-8.1-8.5-9.4-11.6-10.9-12.9-13.8-13.8-14.6-11.2-14.3-14.9-9.7-5.1-4.2-5.0-8.5-7.0-6.2-7.0-4.9-6.3-5.4-7.4
Macquarie Island1.16.05.03.54.74.33.21.60.55.65.23.83.65.84.02.33.92.02.55.06.06.33.42.01.93.55.85.86.57.2
Mawson-11.5-10.5-13.7-10.4-9.7-14.8-10.5-11.3-11.7-11.1-14.1-14.9-14.3-13.4-16.1-15.6-13.9-9.2-7.1-4.9-8.8-10.6-8.3-8.3-7.5-6.7-7.0-9.4-8.6-6.2
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 November 2018
Offshore Islands (200)123456789101112131415161718192021222324252627282930
Christmas Island Aero - - - - 0.2 1.6 12.2 4.0 2.0 17.4 0.2 1.4 47.4 0.8 - - - - - - 0.2 - - 1.8 0.2 - 0.2
Cocos Island Airport

13.0 - 0.6 - - - - - - - 1.0 - - 0.2 10.6 0.6 - - -
- - - - 17.0 45.8 - -
Lord Howe Island (Milky Way) - - - - - 0.2 - - 9.8 0.4 - 0.6 1.8 0.2 18.0 1.0 7.8 - - 0.2 - 23.6 18.8 3.6 18.8 3.4 2.6 - 37.4 3.8
Lord Howe Island Aero - - - - - - - - 9.0 0.2 0.2 1.6 1.2 0.4 12.0 0.2 4.4 - 1.2 0.8 - 17.8 17.8 5.6 19.0 4.8 1.2 - 35.8 8.4
Norfolk Island Aero - - - - - - - - - - 19.0 0.2 5.4 - 6.2 - - - - - - 0.6 - 75.0 2.8 8.2 13.8 0.2 - 12.0
Antarctica and Macquarie Island (300)123456789101112131415161718192021222324252627282930
Casey 2.0 1.8 - 0.2 - - -
- - 6.0 - 0.4 - 1.0 - - - - - - - - - - -

- 0.4
Davis - 0.8 - - - 0.8 - 0.4 - - - -
- - 2.2 0.2 - - - - - - - - - - - - -
Macquarie Island 10.4 1.0 1.8 1.6 1.0 3.8 4.6 4.8 1.4 3.4 0.2 - 1.8 4.8 0.2 0.2 2.4 2.8 - - - - 0.4 - - 0.2 - 0.2 0.2 0.8
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

Map of the areas covered by this summary

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 December 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
(03) 9669 4057
Enquiries