Remote Islands and Antarctica in winter 2022

Australia's Indian Ocean islands

  • Rainfall in winter at Christmas Island Aero was 95% of average, and 119% of average at Cocos Island Airport.
  • Mean maximum and mean minimum temperatures at both Christmas Island Aero and Cocos Island Airport were warmer than average for winter.
  • On 14 June, Christmas Island Aero recorded 29.8 °C, equalling its highest winter temperature on record.

Australia's Pacific Ocean islands

  • Rainfall at Lord Howe Island Aero in winter was 111% of average.
  • Rainfall at Norfolk Island Aero was very much above average and it had its highest total winter rainfall since 1973, making it the seventh-wettest winter at the site in 128 years of observations.
  • Both mean maximum and mean minimum temperatures in winter were slightly below average at Lord Howe Island Aero, which had its lowest mean maximum temperature in winter since 2012.
  • Days and nights were warmer than average at Norfolk Island Aero, which had its highest winter mean daily minimum temperature since 1998, with both the mean maximum and mean minimum temperatures being the third-warmest on record for winter at the site.

Australia's Antarctic and sub-Antarctic territories

  • The strongest wind gust recorded in winter was 196 km/h at Mawson on 14 July.
  • At Mawson and Davis, total wind run for the season was above average, while is was close to average at Casey.
  • At Casey, both mean maximum and mean minimum temperatures for winter were below average.
  • Mean maximum and mean minimum temperatures for winter were above average at Mawson and Davis.
  • The lowest temperature recorded for winter was -32.5 °C at Casey on 1 July.
  • The highest temperature recorded at Australia's Antarctic stations in winter was 1.2 °C at Casey on 26 July.
  • At Macquarie Island, the strongest wind gust was 124 km/h on 14 June.
  • Both mean maximum and mean minimum temperatures at Macquarie Island in winter were close to average.
  • Precipitation in winter at Macquarie Island was the second-highest on record and its highest total winter precipitation since 1993.

Further information

Media
(03) 9669 4057

Highest winter total precipitation for at least 20 years
Observed
(mm)
Most recent
higher
Average for
winter
Norfolk Island Aero 680.4 698.1 in 1973 406.9
Macquarie Island 399.3 422.2 in 1993 231.3



Record highest winter temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Christmas Island Aero 29.8 on 14 Jun = 29.8 on 19 Jun 2016 48 26.5



Highest winter mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
winter
Norfolk Island Aero 14.9 15.3 in 1998 13.9



Summary statistics for winter 2022
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Precipitation
(millimetres)
Mean for
winter
2022
Diff
from
average
Highest for
winter
2022
Mean for
winter
2022
Diff
from
average
Lowest for
winter
2022
Total for
winter
2022
Average
for
winter
Rank of
winter
2022
Fraction of
winter
average
Offshore Islands (district 200)
Christmas Island Aero 27.1 +0.6 29.8 14 Jun 23.1 +0.4 20.2 2 Jun 293.8 308.4 average 95%
Cocos Island Airport 28.8 +0.6 31.1 16 Jun 24.9 +0.7 21.6 2 Jun 656.4 550.6 high 119%
Lord Howe Island Aero 19.2 -0.1 21.8 5 Aug 13.7 -0.4 8.8 26 Jun 468.8 423.0 high 111%
Norfolk Island Aero 19.5 +0.8 23.0 1 Jun 14.9 +1.0 11.6 23 Jul 680.4 406.9 v high 167%
Antarctica and Macquarie Island (district 300)
Casey -11.7 -1.0 1.2 26 Jul -19.8 -1.2 -32.5 1 Jul 64.1 72.5 average 88%
Davis -11.5 +2.1 -0.8 9 Jun -17.4 +2.6 -30.7 21 Aug
Macquarie Island 5.1 +0.1 7.2 30 Aug 1.6 0.0 -3.6 7 Aug 399.3 231.3 v high 173%
Mawson -12.4 +2.2 -3.1 9 Jun -18.4 +2.3 -29.2 22 Jul
Note: Precipitation values from Casey and Davis should be used with caution.

Map of the areas covered by this summary

Notes

The Seasonal 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. 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 9 am on Friday 2 September 2022. 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.

Further information

Media
(03) 9669 4057

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