Australian Capital Territory in July 2023

Rainfall

  • Rainfall in July was below to very much below average across the territory. Some stations recorded up to one third of their July average.
  • Most rainfall occurred on the 5th and 9th of the month. The highest daily rainfall was 24.6 mm recorded at Mount Ginini to 9 am on the 9th, which also recorded the highest monthly rainfall totals of 51.6mm.

Temperature

  • Mean maximum temperatures were around 2 °C higher than average
  • The highest July mean daily maximum temperature on record was at Tuggeranong (Isabella plains) AWS at 14.7 °C.
  • The warmest day was 18.1 °C at Canberra Airport on the 29th. The coldest day was recorded at Mount Ginini (-0.1 °C) on the 7th.
  • Mean minimum temperatures for the terittory have been within the average for the month. The warmest night was 7.4 °C recorded at Canberra Airport on the 5th where the coldest night ( -5.9 °C) was also recorded on the 20th.

Canberra Airport

  • Total rainfall for Canberra Airport was 10.0 mm, which is 32% of the long-term average at the current site of 31.0 mm.
  • The mean daily maximum temperature for Canberra Airport was 14.5 °C, which is 1.8 °C above the long-term average at the current site of 12.7 °C and a record mean daily maximum temperature at this site.
  • The warmest day was 18.1 °C on the 29th, and the coolest day was on the 8th when the temperature reached 9.9 °C.
  • The mean daily minimum temperature for Canberra Airport was -0.2 °C, which is 0.3 °C below the long-term average at the current site of 0.1 °C.
  • The coldest morning was -5.9 °C on the 20th, and the warmest morning was on the 5th when the minimum temperature was 7.4 °C.

Extremes in July 2023
Hottest day 18.1 °C at Canberra Airport on the 29th
Warmest days on average 14.7 °C at Tuggeranong (Isabella Plains) AWS
Coolest days on average 4.6 °C at Mount Ginini AWS
Coldest day -0.1 °C at Mount Ginini AWS on the 7th
Coldest night -5.9 °C at Canberra Airport on the 20th
Coolest nights on average -0.7 °C at Mount Ginini AWS
Warmest nights on average -0.2 °C at Canberra Airport
Warmest night 7.4 °C at Canberra Airport on the 5th
Warmest on average overall 7.2 °C at Tuggeranong (Isabella Plains) AWS
Coolest on average overall 2.0 °C at Mount Ginini AWS
Wettest overall 51.6 mm at Mount Ginini AWS
Wettest day 24.6 mm at Mount Ginini AWS on the 9th
Strongest wind gust 74 km/h at Mount Ginini AWS on the 8th

Record highest July mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Tuggeranong (Isabella Plains) AWS 14.7 13.6 in 2019 27 12.4



Summary statistics for July 2023
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
July
2023
Diff
from
average
Highest for
July
2023
Mean for
July
2023
Diff
from
average
Lowest for
July
2023
Total for
July
2023
Average
for
July
Rank of
July
2023
Fraction of
July
average
Canberra Airport 14.5 +1.8 18.1 29th -0.2 -0.3 -5.9 20th 10.0 31.0 low 32%
Mount Ginini AWS 4.6 +2.1 9.2 25th -0.7 +1.7 -5.2 19th 51.6 89.0 low 58%
Tuggeranong (Isabella Plains) AWS 14.7 +2.3 17.6 15th -0.3 -0.4 -5.4 26th 10.6 37.1 v low 29%

Daily maximum temperatures for July 2023
12345678910111213141516171819202122232425262728293031
Canberra Airport13.915.713.412.015.012.411.89.911.812.216.015.114.715.517.916.316.615.212.312.014.312.914.414.916.616.415.514.118.117.114.9
Mount Ginini AWS4.17.46.53.83.90.9-0.1-0.10.90.83.45.24.92.94.66.26.63.56.75.02.25.83.66.99.27.56.83.75.46.26.9
Tuggeranong (Isabella Plains) AWS14.215.413.212.415.913.012.210.413.112.716.315.014.015.317.616.116.215.112.412.715.013.314.015.016.916.515.814.317.217.416.7
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 July 2023
12345678910111213141516171819202122232425262728293031
Canberra Airport4.6-4.1-3.33.07.4-0.62.55.66.26.5-2.0-2.4-1.40.26.6-1.7-2.9-1.7-5.3-5.9-0.6-5.4-5.4-5.0-4.0-5.3-5.91.21.84.75.3
Mount Ginini AWS-2.2-1.92.11.21.4-3.5-2.2-2.9-2.5-0.5-2.2-0.11.5-0.80.30.71.10.3-5.2-1.0-2.2-3.9-2.5-2.0-0.41.11.51.01.71.40.5
Tuggeranong (Isabella Plains) AWS-2.9-3.6-3.12.77.10.64.76.25.82.6-2.8-2.1-0.80.96.2-2.0-3.2-1.5-5.2-5.3-1.3-4.7-4.4-4.7-4.4-5.4-5.31.67.03.04.1
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 rainfall for July 2023
12345678910111213141516171819202122232425262728293031
Aranda (Bindaga St) 0.2 - - 0.4 4.6 - 0.6 0.2 5.0 - - - 0.2 - - - - - 0.6 - - - - - - - - 0.2 1.2
Bruce (Australian Institute of Sport) - - - - 5.0 - - 6.2 - - - - - - - - - - - - - - - - - - - - 1.6
Canberra (Australian National Botanic Ga 0.1 - - - 4.2 0.1 0.4 - 4.2 - - - -

















Canberra Airport - - 0.2 - 2.8 0.2 0.2 - 4.4 - - - 0.2 - - - - - 0.8 - - - - 0.2 - 0.2 - - 0.8 - -
Mount Ginini AWS 0.2 - - 0.4 6.4 0.4 4.0 3.8 24.6 4.2 0.6 0.2 - - - - - - 0.2 - 0.2 - - - - - - - 6.4 - -
Torrens (Darke St) - - - - 2.6 - 0.2 - 5.0 - - - - - - - - - - 0.4 - - - - - - - - 1.0 0.2
Tuggeranong (Isabella Plains) AWS - - - - 4.0 - - 0.2 5.0 - - - 0.2 - - - - - - - - - - - - - - - 0.6 0.6 -
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 rainfall report of zero; days left blank have no rainfall report (which often indicates no rain fell).
Rainfalls 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

Notes

The Monthly 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 Tuesday 1 August 2023. 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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