Australian Capital Territory in summer 2023-24

Rainfall

  • Summer rainfall was above average across the territory.
  • The highest total rainfall for summer was 506 mm recorded at Mt Ginini AWS.
  • The wettest day of summer was in the 24 hours to 9am on 14 January when thunderstorms caused flash flooding and 60.4 mm was recorded at Tuggeranong (Isabella Plains) AWS.

Temperature

  • Mean maximum summer temperature was below average in the territory. Only January had above average daily temperatures.
  • The warmest day was 34.8 °C at Canberra Airport on 9 December.
  • The coldest night was 3.4 °C at Mount Ginini AWS on 22 of December.

Canberra Airport

  • Total rainfall for Canberra Airport was 272.0 mm, which is 138% of the long-term average at the current site of 196.9 mm and the highest since 2010-11.
  • The mean daily maximum temperature for Canberra Airport was 27.4 °C, which is 1.0 °C below the long-term average at the current site of 28.4 °C.
  • The warmest day was 34.8 °C on 9 December, and the coolest day was on 20 December when the temperature reached 16.6 °C.
  • The mean daily minimum temperature for Canberra Airport was 13.9 °C, which is 0.8 °C above the long-term average at the current site of 13.1 °C.
  • The coldest morning was 7.0 °C on 22 December, and the warmest morning was on 26 January when the minimum temperature was 20.8 °C.

Extremes in summer 2023-24
Hottest day 34.8 °C at Canberra Airport on 9 Dec 2023
Warmest days on average 27.5 °C at Tuggeranong (Isabella Plains) AWS
Coolest days on average 19.0 °C at Mount Ginini AWS
Coldest day 9.0 °C at Mount Ginini AWS on 20 Dec 2023
Coldest night 3.4 °C at Mount Ginini AWS on 22 Dec 2023
Coolest nights on average 9.4 °C at Mount Ginini AWS
Warmest nights on average 14.6 °C at Tuggeranong (Isabella Plains) AWS
Warmest night 20.8 °C at Canberra Airport on 26 Jan 2024
Warmest on average overall 21.0 °C at Tuggeranong (Isabella Plains) AWS
Coolest on average overall 14.2 °C at Mount Ginini AWS
Wettest overall 506.8 mm at Mount Ginini AWS
Wettest day 60.4 mm at Tuggeranong (Isabella Plains) AWS on 14 Jan 2024
Strongest wind gust 87 km/h at Canberra Airport on 19 Dec 2023




Summary statistics for summer 2023-24
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
summer
2023-24
Diff
from
average
Highest for
summer
2023-24
Mean for
summer
2023-24
Diff
from
average
Lowest for
summer
2023-24
Total for
summer
2023-24
Average
for
summer
Rank of
summer
2023-24
Fraction of
summer
average
Canberra Airport 27.4 -1.0 34.8 9 Dec 2023 13.9 +0.8 7.0 22 Dec 2023 272.0 196.9 high 138%
Mount Ginini AWS 19.0 -0.1 25.1 9 Dec 2023 9.4 +0.7 3.4 22 Dec 2023 506.8 297.9 high 170%
Tuggeranong (Isabella Plains) AWS 27.5 -0.7 33.6 28 Feb 2024 14.6 +1.0 8.0 3 Dec 2023 283.8 205.8 high 138%

Notes

The Seasonal climate summary, usually published in the first week of the following month, lists the main features of the weather in Australian Capital Territory 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 10 am on Friday 1 March 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 rainfall 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 rain.

The Rank indicates how rainfall this time compares with the climate record for the site, based on the decile ranking (very low rainfall 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 rain 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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