Wednesday, 31 January 2024 - Annual Climate Summary for Remote Islands and Antarctica - Product code IDCKGC5RR0

Remote Islands and Antarctica in 2023

Jump to a map of the areas covered in this summary

Australia's Indian Ocean islands

• At Cocos Island Airport, the annual rainfall total was below average at 1253.8 mm of rainfall which was 63.5% below the annual average of 1974.0 mm. July had the lowest monthly rainfall on record for the month at 23.0 mm.
• Both mean maximum and mean minimum temperatures for the year were 0.2 °C warmer than average at Cocos Island Aero. The warmest May maximum temperature on record was 32.0 °C on the 8th.
• Christmas Island Aero experienced multiple equipment issues throughout the year. With the available data maximum and minimum temperatures were above average in 2023. The warmest December maximum temperature on record of 31.5 °C was observed on the 27th.
• Total annual rainfall for Christmas Island Aero could not be calculated due many days of missing rainfall data. However, with the reported annual rainfall total, rainfall was below average and 55% of its long-term annual average.

Australia's Pacific Ocean islands

• Norfolk Island Aero recorded 1129.4 mm of rainfall during the year, which was close to its annual average of 1287.6 mm.
• At Norfolk Island Aero, both the mean maximum and minimum temperature was 0.3 °C above average.
• Lord Howe Island Aero experienced multiple equipment issues throughout the year. With the available data both mean maximum and minimum temperatures were below average in 2023. The warmest maximum temperature on record for September was 23.7 °C on the 21st and the warmest maximum temperature on record for December was 28.5 °C on the 28th.
• Total annual rainfall for Lord Howe Island could not be calculated due many days of missing rainfall data. However, with the reported annual rainfall total, rainfall was below average and 85% of its long-term annual average. June rainfall totals were the lowest on record for the month at 47.2 mm.

Australia's Antarctic and sub-Antarctic territories

• The strongest wind gust recorded at an Australian Antarctic station during the year was 211 km/h at Casey on 14 September, which was the site's highest on record for September.
• At Mawson, the mean maximum temperature was 0.4 °C above average and mean minimum temperature was 0.2 °C above average. On 17 September, the site observed the lowest minimum temperature for September on record at -5.3 °C.
• The mean maximum and mean minimum temperatures at Davis were 0.5 °C and 0.6 °C below the long-average respectively. The site's warmest September mean maximum temperature on record was 0.4 °C on the 14th.
• At Casey, both the mean maximum and minimum temperature were within 0.1 °C close to its annual average. The lowest maximum temperature for July on record was -30.9 °C on the 27th and the lowest minimum temperature for July on record was -36.4 °C on the 28th.
• Macquarie Island recorded 1004.9 mm of precipitation during the year, which was 120% above its annual average. July 2023 was the wettest July on record for the site with 146.2 mm of total precipitation recorded.
• Both mean maximum and mean minimum temperatures at Macquarie Island were 0.5 °C above the long-term (1961–1990) average.
• The strongest wind gust this year at Macquarie Island was 137 km/hr on the morning of 20 February.

Records Summaries Important notes the top

Records Summaries Important notes the top

Records Summaries Important notes the top