Remote Islands and Antarctica in June 2019

Australia's Indian Ocean islands

Australia's Pacific Ocean islands

  • Days were about half a degree warmer than average on Lord Howe Island, but nights were a little cooler than average
  • Rainfall on Lord Howe Island was a little below average overall, with almost half of the monthly total falling during the 17th as a trough crossed
  • Temperatures were more than half a degree above average on Norfolk Island
  • Total rainfall at Norfolk Island Airport was 66.2 mm, less than half the long-term average and the driest June since 2015

Australia's Antarctic and sub-Antarctic territories

  • The mean temperature at Mawson was almost half a degree above average, with cold weather for the first three weeks but relatively mild weather from the 21st
  • Davis had several weeks of very cold weather from the start of the month but relatively mild weather in the final week; the mean temperature was almost two degrees below average
  • Very cold weather was common at Casey, and despite some relatively mild days from the 15th to the 24th the mean temperature was more than a degree below average
  • Temperatures on Macquarie Island were almost a degree warmer than average overall
  • Total precipitation on Macquarie Island was close to average, but the driest June since 2014

Further information

Media
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Lowest June total precipitation for at least 20 years
Observed
(mm)
Most recent
lower
Average for
June
Cocos Island Airport 53.8 7.4 in 1978* 213.2

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported




Summary statistics for June 2019
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Precipitation
(millimetres)
Mean for
June
2019
Diff
from
average
Highest for
June
2019
Mean for
June
2019
Diff
from
average
Lowest for
June
2019
Total for
June
2019
Average
for
June
Rank of
June
2019
Fraction of
June
average
Offshore Islands (district 200)
Christmas Island Aero 26.7 -0.4 28.2 4th 23.2 -0.1 21.6 3rd 85.8 174.4 average 49%
Cocos Island Airport 29.2 +0.6 30.3 4th 25.2 +0.7 23.4 23rd 53.8 213.2 v low 25%
Lord Howe Island Aero 20.4 +0.5 22.2 14th 14.6 -0.2 10.1 21st 139.2 168.0 average 83%
Norfolk Island Aero 20.0 +0.7 21.4 19th 15.3 +0.6 12.5 4th 66.2 143.8 low 46%
Antarctica and Macquarie Island (district 300)
Casey -11.7 -1.0 -2.6 23rd -20.2 -1.7 -27.5 1st 6.6 25.1 v low 26%
Davis -14.0 -1.4 -4.8 27th -20.9 -2.0 -32.8 8th 5.4 9.1 average 59%
Macquarie Island 6.0 +0.9 8.5 30th 2.5 +0.9 -0.5 3rd 84.0 77.9 average 108%
Mawson -12.8 +0.8 -5.8 23rd -19.7 -0.1 -27.0 19th
Note: Precipitation values from Casey and Davis should be used with caution.

Daily maximum temperatures for June 2019
Offshore Islands (200)123456789101112131415161718192021222324252627282930
Christmas Island Aero27.527.127.228.227.827.327.227.626.627.125.525.826.425.526.326.926.626.826.627.226.826.426.127.026.527.126.226.326.226.3
Cocos Island Airport29.429.429.830.330.029.829.427.127.928.428.128.528.928.928.829.229.229.730.229.729.129.529.929.829.729.628.729.428.629.6
Lord Howe Island Aero20.221.520.319.318.919.619.920.520.622.121.821.122.122.220.921.120.421.621.019.920.317.918.618.919.820.019.719.821.021.5
Norfolk Island Aero21.020.019.720.920.819.219.620.119.919.519.420.220.120.021.419.119.921.221.421.220.620.019.419.219.018.619.820.219.520.1
Antarctica and Macquarie Island (300)123456789101112131415161718192021222324252627282930
Casey-12.2-5.3-15.9-13.2-17.0-17.6-14.9-15.2-13.0-8.4-10.2-12.6-17.1-10.8-2.7-4.7-9.5-5.7-4.9-4.9-13.4-13.5-2.6-6.9-16.2-17.6-18.9-16.5-17.6-13.0
Davis-19.7-19.2-16.7-18.7-14.9-17.3-23.1-18.8-7.4-8.2-14.7-17.1-19.2-18.9-20.3-20.4-17.6-18.3-20.2-7.9-7.5-7.1-7.0-6.8-12.3-6.9-4.8-7.4-11.5-8.8
Macquarie Island5.14.14.65.76.56.75.16.55.55.74.17.26.96.75.65.96.95.65.04.94.65.65.56.66.47.37.77.85.08.5
Mawson-18.3-14.3-11.9-12.2-17.5-13.6-12.4-17.1-14.6-17.6-16.3-13.5-10.5-14.6-14.8-12.9-15.9-18.2-17.3-13.5-9.2-7.5-5.8-10.3-11.1-8.7-7.0-7.3-9.2-11.8
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 June 2019
Offshore Islands (200)123456789101112131415161718192021222324252627282930
Christmas Island Aero24.023.321.623.324.524.023.423.424.123.223.022.722.622.622.722.623.823.523.223.023.323.222.223.323.423.523.223.123.122.7
Cocos Island Airport27.123.726.726.523.724.725.624.824.024.024.625.525.926.424.826.125.025.026.426.125.423.426.325.226.425.324.624.224.6
Lord Howe Island Aero16.317.011.715.212.715.315.117.013.014.716.016.910.518.311.010.316.015.013.916.610.114.214.313.014.515.215.016.517.016.8
Norfolk Island Aero17.315.216.212.516.915.915.116.216.614.515.116.217.016.115.515.914.216.315.016.415.113.114.813.413.214.514.515.116.116.3
Antarctica and Macquarie Island (300)123456789101112131415161718192021222324252627282930
Casey-27.5-26.5-19.2-21.8-17.5-24.6-23.6-19.5-20.1-21.5-19.3-14.8-20.9-23.3-22.5-11.9-11.9-14.4-13.6-7.8-16.4-23.6-23.5-20.0-21.6-21.5-19.7-25.0-26.5-26.7
Davis-26.0-25.5-24.5-22.3-26.2-19.3-28.9-32.8-26.4-22.3-14.9-19.7-25.0-24.2-21.3-24.2-24.8-23.7-23.4-24.9-23.4-9.0-11.9-13.2-14.3-18.7-19.2-8.0-11.5-18.3
Macquarie Island0.42.8-0.5-0.31.30.50.91.83.72.72.52.03.95.04.81.20.64.41.81.01.92.42.12.05.35.55.46.31.72.8
Mawson-22.2-26.6-25.9-22.0-19.6-24.1-23.6-24.4-25.3-20.3-22.8-22.7-19.2-17.2-20.9-19.8-17.6-21.5-27.0-25.7-19.0-16.6-10.1-12.9-18.8-18.5-12.5-10.8-9.8-13.6
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 June 2019
Offshore Islands (200)123456789101112131415161718192021222324252627282930
Christmas Island Aero 0.8 3.8 0.4 - - - - - 2.4 2.2 13.2 19.2 9.0 9.4 22.6 0.2 0.4 - - - - - - - - - - - 2.2
Cocos Island Airport - 6.4 - - 0.2 - - 8.8 13.0 2.6
- - - 4.6 - 0.6 1.6


0.2 - - 0.2 - 2.6 5.8 6.6 0.6
Lord Howe Island (Milky Way) 7.2 0.4 3.2 16.6 4.0 0.2 2.6 - - 3.4 12.4 - - 2.6 2.8 - 16.4 51.6 0.4 0.2 - 19.8 4.2 5.0 4.2 - 0.4 0.2 0.4 1.4
Lord Howe Island Aero 4.2 0.2 - 14.6 2.8 2.4 3.8 - - 5.8 10.0 - - 4.0 6.0 - 5.8 63.0 0.4 0.2 - 8.2 1.2 3.0 2.2 0.2 1.2 - - -
Norfolk Island Aero 0.4 - 0.2 0.2 24.0 0.4 1.4 - - 6.4 0.6 0.6 - 0.2 - 7.6 - 0.4 3.0 0.2 2.2 3.0 5.6 0.2 1.2 - - 1.8 1.2 5.4
Antarctica and Macquarie Island (300)123456789101112131415161718192021222324252627282930
Casey - - 1.4 - 1.2 - - 0.8 1.4 1.0
0.2
-

- - 0.6 - -
- - - - - - -
Davis - 0.6 - - - 1.4 - 0.2 0.2 - - - - - -
- - - - 0.6
- 2.0 0.4 - - - - -
Macquarie Island 0.2 1.0 9.0 5.4 5.6 7.0 5.2 1.6 6.0 0.8 10.0 - 5.8 0.6 5.0 1.4 - 1.2 1.4 1.2 0.4 0.4 1.6 1.6 2.0 2.6 - 1.4 5.4 0.2
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 1 pm on Monday 1 July 2019. 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