Remote Islands and Antarctica in March 2024

Australia's Indian Ocean islands

  • Christmas Island Aero had a monthly rainfall total of 254.8 mm in March, which was close to the March long-term average of 298.9 mm.
  • At Christmas Island Aero, the mean maximum temperature was 0.5 °C above average and the mean minimum temperature was 0.8 °C above average.
  • The March rainfall total at Cocos Island Airport was 157.4 mm, this was 67% of the March long-term average rainfall of 234.7 mm.
  • At Cocos Island Airport, both daytime and night-time temperatures were within 0.5 °C of the March average.

Australia's Pacific Ocean islands

  • Norfolk Island Aero recorded 20.2 mm of rainfall in March, this was very much below the March long-term average of 103.8 mm.
  • At Norfolk Island Aero, mean maximum and mean minimum temperatures were 1.4 °C and 0.2 °C above average for March, respectively.
  • The March rainfall total at Lord Howe Island Aero, using the available data was 37.0 mm and was very much below the March long-term average of 127.9 mm. The March total rainfall may be higher than the reported value.
  • At Lord Howe Island Aero, the mean maximum temperature was 0.9 °C above average and the mean minimum temperature was close to average.
  • On the 2nd, Lord Howe Island Aero had its highest March temperature on record at 29.7 °C. The previous record was 28.2 °C in 2015.

Australia's Antarctic and sub-Antarctic territories

  • The strongest wind gust recorded at the Australian Antarctic stations during March was 165 km/h at Mawson on the evening of the 17th.
  • The mean maximum temperature was below average at Casey and above average at Davis and Mawson.
  • At Casey, Davis and Mawson the mean minimum temperature was above average.
  • Monthly precipitation at Macquarie Island was above the long-term March average and it was the third-wettest March on record with a total precipitation of 144.2 mm.
  • Both the mean maximum and minimum temperature at Macquarie Island were below the long-term March average at 0.7 °C and 1.0 °C, respectively.
  • The strongest wind gust recorded in March at Macquarie Island was 124 km/h on the 10th.

Highest March total precipitation for at least 20 years
Observed
(mm)
Most recent
higher
Average for
March
Macquarie Island 144.2 169.2 in 2001 101.3



Record highest March temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Lord Howe Island Aero 29.7 on the 2nd 28.2 on the 21st in 2015 36 25.0



Highest March mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
March
Norfolk Island Aero 25.7 25.9 in 1981 24.3



Lowest March mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
March
Macquarie Island 7.4 7.0 in 1998 8.1



Lowest March mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
March
Macquarie Island 3.8 3.2 in 1988 4.8



Lowest March mean temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
March
Macquarie Island 5.6 5.5 in 1998 6.4



Summary statistics for March 2024
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Precipitation
(millimetres)
Mean for
March
2024
Diff
from
average
Highest for
March
2024
Mean for
March
2024
Diff
from
average
Lowest for
March
2024
Total for
March
2024
Average
for
March
Rank of
March
2024
Fraction of
March
average
Offshore Islands
Christmas Island Aero 28.8 +0.5 30.3 22nd 23.9 +0.8 22.0 22nd 254.8 298.9 average 85%
Cocos Island Airport 30.6 +0.5 32.0 24th 25.5 +0.2 21.0 11th 157.4 234.7 low 67%
Lord Howe Island Aero 25.9 +0.9 29.7 2nd 20.2 +0.1 14.6 25th 37.0 127.9 v low 29%
Norfolk Island Aero 25.7 +1.4 28.2 4th 19.5 +0.2 17.5 18th 20.2 103.8 v low 19%
Antarctica and Macquarie Island
Casey -4.7 -0.6 1.1 17th -9.3 +0.6 -21.6 31st 26.4 16.9 high 156%
Davis -4.6 +1.1 0.6 5th -9.5 +1.4 -16.7 30th 3.8 8.7 low 44%
Macquarie Island 7.4 -0.7 9.7 9th 3.8 -1.0 1.3 14th 144.2 101.3 v high 142%
Mawson -6.6 +0.6 -1.3 13th -12.1 +1.2 -19.1 26th
Note: Precipitation values from Casey and Davis should be used with caution.

Daily maximum temperatures for March 2024
Offshore Islands12345678910111213141516171819202122232425262728293031
Christmas Island Aero29.730.029.929.329.829.129.527.227.227.827.128.427.828.328.928.428.928.729.729.130.328.129.128.529.629.127.828.7
Cocos Island Airport29.831.529.330.630.730.829.229.230.429.230.130.030.030.430.130.131.330.530.931.330.531.832.031.531.131.031.731.131.7
Lord Howe Island Aero27.429.728.726.425.626.225.925.726.225.826.226.626.927.226.523.725.025.126.326.224.524.824.123.625.525.925.926.725.324.924.8
Norfolk Island Aero26.326.927.828.225.425.426.525.725.826.727.326.225.526.627.824.824.925.125.425.826.025.922.024.626.125.325.824.624.624.223.9
Antarctica and Macquarie Island12345678910111213141516171819202122232425262728293031
Casey-1.8-1.9-1.5-0.7-2.5-2.5-2.2-2.2-3.6-3.6-4.7-6.1-6.8-4.8-6.2-2.11.10.5-1.0-3.4-3.3-2.7-4.8-7.2-5.5-5.1-7.5-10.7-13.2-12.7-16.2
Davis-4.8-1.5-1.9-0.50.6-1.4-1.8-2.3-7.0-6.6-1.6-0.6-1.1-3.9-5.9-8.1-2.8-0.4-0.6-0.3-1.4-10.0-10.4-10.0-5.9-4.4-4.1-7.9-11.1-13.8-12.6
Davis (Whoop Whoop)-11.4-7.7-7.2-7.9-6.0-8.5-8.1-10.0-8.9-7.1-7.8
Macquarie Island8.88.67.96.07.49.08.16.99.78.67.67.77.25.46.37.06.97.68.58.58.38.26.86.65.65.55.47.07.67.57.3
Mawson-9.6-7.8-5.4-3.5-2.3-2.9-4.2-2.7-4.9-6.8-5.1-1.6-1.3-2.1-7.6-8.0-6.3-4.9-4.8-6.7-4.4-7.2-9.0-11.5-11.9-9.5-7.3-8.6-9.6-13.1-13.9
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 March 2024
Offshore Islands12345678910111213141516171819202122232425262728293031
Christmas Island Aero24.724.624.025.025.024.824.123.922.122.222.423.623.624.323.322.723.323.724.422.822.023.724.724.824.924.724.525.024.7
Cocos Island Airport26.725.826.325.427.825.925.626.025.721.025.123.624.625.125.822.724.224.426.326.425.823.426.726.226.726.526.726.826.5
Lord Howe Island Aero19.923.423.719.419.421.122.022.520.822.722.621.318.818.720.020.820.320.520.921.820.218.518.314.619.516.915.721.020.519.2
Norfolk Island Aero18.920.122.122.621.419.520.620.219.520.320.620.620.318.417.818.419.117.519.319.719.818.918.717.918.818.817.819.119.719.118.3
Antarctica and Macquarie Island12345678910111213141516171819202122232425262728293031
Casey-9.1-11.8-10.6-5.0-3.1-8.6-5.9-4.7-4.1-7.8-7.3-12.3-10.5-11.6-8.7-10.2-9.8-5.0-4.4-4.1-6.3-6.1-8.2-7.8-10.2-9.8-13.6-16.7-17.4-16.5-21.6
Davis-8.1-7.1-5.1-4.8-2.8-3.1-3.4-5.5-12.9-14.1-11.5-6.6-3.8-4.4-8.9-12.4-14.2-13.2-3.7-4.0-4.6-13.2-14.1-16.3-14.5-14.9-6.4-13.4-15.2-16.7-15.1
Davis (Whoop Whoop)-14.9-13.6-11.7-10.6-10.6-10.7-10.6-13.4-21.7-12.5-9.2-11.0
Macquarie Island5.25.13.33.42.55.85.03.64.06.04.25.32.41.31.52.53.52.05.27.45.25.12.83.52.11.62.31.93.84.95.2
Mawson-16.7-15.0-13.0-9.9-8.2-8.8-11.6-9.6-9.2-9.7-9.8-8.4-6.6-5.5-10.8-12.9-13.6-13.5-8.3-10.8-11.1-8.6-11.4-14.6-16.9-19.1-18.2-13.6-14.5-16.3-19.0
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 March 2024
Offshore Islands12345678910111213141516171819202122232425262728293031
Christmas Island Aero 3.6 4.4 - 7.4 8.0 3.6 16.2 55.4 22.4 69.4 29.2 24.8 2.2 5.4 0.2 - - - - 0.4 - - - - - - 1.8 0.4 -
Cocos Island Airport 3.0 10.0 2.0
24.8 0.2 37.4 20.0 6.8 3.6 40.8 0.2 5.4 0.2 - - - - - - - - - - - 3.0 - - - - -
Lord Howe Island (Milky Way) - - 14.4 7.8 - 3.4 - - - 1.4 - - - - - 7.8 0.2 0.6 0.8 2.0 - 2.0 2.8 0.4 - - - - 1.2 1.2 3.6
Lord Howe Island Aero
-
12.8 0.6 1.0 0.2 - - 4.0 - - -
- 5.0 0.2 - 0.2 0.6 - 1.8 4.6 0.4 -
- - 0.8 0.8 4.0
Norfolk Island Aero - - - - 1.4 - - - 4.0 1.0 1.0 1.4 - 0.2 0.2 1.8 - 4.0 1.0 - 0.4 0.2 0.2 1.6 0.2 0.2 - - - - 1.4
Antarctica and Macquarie Island12345678910111213141516171819202122232425262728293031
Casey - - - - 1.8 - 1.4 0.4 0.6 1.6 3.0 - - 1.2 2.2 0.6 - - 1.6 3.0 0.2 - - - 1.0 - - 6.6 - 1.2 -
Davis - - 2.0 0.8 - - - - - - - 0.6 - - - - - - - - - - - - 0.4 - - - - - -
Macquarie Island 32.2 2.0 0.2 12.0 0.2 1.2 2.2 5.2 0.6 11.8 1.2 3.4 3.4 4.2 2.8 4.0 0.8 1.2 1.2 4.0 3.8 0.2 10.8 8.8 3.6 2.2 3.2 10.4 6.8 0.4 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, usually published in the first week of the following 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.

This statement has been prepared based on information available at 4 pm on Monday 1 April 2024. 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.

Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.


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