Australian Capital Territory in June 2019: warm days, cool nights and dry

Rainfall in the ACT in June was below average. Daytime temperatures were warmer than average and overnight temperatures were cold.

Average rain days, but below average rainfall

  • June was drier than average across the ACT despite Canberra Airport reporting 12 rain days (compared to an average of 10 days)
  • The wettest day was 19.0 mm at Mount Ginini AWS on the 30th due to a passage of a cold front
  • Canberra Airport recorded 254.4 mm for the first half of 2019, which is close to average for the January to June period

Warm days, chilly nights

  • Daytime temperatures across the ACT were warmer than average
  • The highest maximum temperature, 17.6 ºC, was recorded at Tuggeranong (Isabella Plains) AWS on the 12th due to a high pressure ridge along eastern New South Wales
  • Overnight temperatures were much cooler than June 2018, but warmer than June 2017
  • A slow moving high pressure system brought clear skies and cool conditions across the ACT between the 19th and the 23rd
  • The 21st was particularly cold, overnight temperatures dropped to minus 5 to 6 degrees across the ACT
  • Canberra Airport has had a very warm first half of 2019, equal warmest mean maximum temperature of 23.8 ºC for the January to June period (equal with January to June 2018)

Canberra Airport

  • Total rainfall for Canberra Airport was 18.0 mm, which is 43% of the long-term average of 41.7 mm
  • The mean daily maximum temperature for Canberra Airport was 14.1 °C, which is 1.7 °C above the long-term average of 12.4 °C and fourth-warmest on record. The warmest day was 17.4 °C on the 12th, and the coolest day was on the 23rd when the temperature reached 10.8 °C
  • The mean daily minimum temperature for Canberra Airport was -0.1 °C, which is 1.1 °C below the long-term average of 1.0 °C. The coldest morning was -4.9 °C on the 21st, and the warmest morning was on the 13th when the minimum temperature was 5.8 °C

Further information

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Extremes in June 2019
Hottest day 17.6 °C at Tuggeranong (Isabella Plains) AWS on the 12th
Warmest days on average 14.1 °C at Canberra Airport
Coolest days on average 4.7 °C at Mount Ginini AWS
Coldest day -1.3 °C at Mount Ginini AWS on the 4th
Coldest night -6.1 °C at Mount Ginini AWS on the 21st
Coolest nights on average -1.2 °C at Mount Ginini AWS
Warmest nights on average -0.1 °C at Canberra Airport
Warmest night 5.8 °C at Canberra Airport on the 13th
Warmest on average overall 7.0 °C at Canberra Airport
Coolest on average overall 1.7 °C at Mount Ginini AWS
Wettest overall 50.8 mm at Mount Ginini AWS
Wettest day 19.0 mm at Mount Ginini AWS on the 30th
Strongest wind gust 81 km/h at Mount Ginini AWS on the 4th




Summary statistics for June 2019
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
June
2019
Diff
from
average
Highest for
June
2019
Mean for
June
2019
Diff
from
average
Lowest for
June
2019
Total for
June
2019
Average
for
June
Rank of
June
2019
Fraction of
June
average
Canberra Airport 14.1 +1.7 17.4 12th -0.1 -1.1 -4.9 21st 18.0 41.7 low 43%
Mount Ginini AWS 4.7 +0.9 10.6 7th -1.2 -0.1 -6.1 21st 50.8 84.6 low 60%
Tuggeranong (Isabella Plains) AWS 13.7 +0.6 17.6 12th -0.3 -1.6 -5.1 21st 17.8 52.8 low 34%
Note: Observations for “Canberra Airport” are taken from the current site (Bureau number 070351), which opened in late 2008.
Comparisons are made against data from the previous site Canberra Airport Comparison (070014), which ran from 1939 to 2010,
combined with the current site from March 2010 onwards.

Daily maximum temperatures for June 2019
123456789101112131415161718192021222324252627282930
Canberra Airport15.215.711.411.412.314.617.011.216.014.516.317.416.514.513.713.215.613.711.911.011.411.510.813.615.915.015.916.716.611.3
Mount Ginini AWS6.34.70.2-1.35.79.010.66.26.35.28.96.24.13.45.05.06.02.92.40.61.42.10.23.76.18.56.47.64.32.8
Tuggeranong (Isabella Plains) AWS14.615.610.810.812.114.417.110.515.814.815.317.616.414.113.312.915.313.012.210.711.011.010.612.415.214.815.416.215.211.5
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 June 2019
123456789101112131415161718192021222324252627282930
Canberra Airport-0.7-1.62.94.43.3-3.9-1.3-0.10.64.53.80.65.8-2.2-1.4-0.81.10.5-2.7-4.4-4.9-1.5-3.8-0.8-2.20.40.4-1.1-1.74.3
Mount Ginini AWS-0.80.3-1.7-4.6-4.5-2.91.02.31.11.81.03.53.8-1.5-0.6-0.8-0.90.8-4.9-4.8-6.1-5.3-4.5-3.2-1.3-1.4-0.9-0.42.4-2.6
Tuggeranong (Isabella Plains) AWS-1.5-1.60.34.51.1-3.5-1.5-0.20.75.42.40.64.9-2.0-2.9-0.40.41.5-3.2-4.6-5.1-3.6-1.15.1-2.1-1.0-2.1-0.6-1.43.4
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 June 2019
123456789101112131415161718192021222324252627282930
Aranda (Bindaga St) - - 0.8 2.2 - - - - - 1.2 2.2 - 2.6 - - 0.2 - - 0.2
Bruce (Australian Institute of Sport) 1.0 4.8 - - - - - - 4.0


















Canberra (Australian National Botanic Ga - - 0.8 2.2 - - - - - 1.0 2.8 0.1 2.3 - - - - - 0.2 - - - - - - - - - - 11.0
Canberra Airport 0.2 - 0.4 3.6 - - 0.2 - - 0.4 2.8 - 1.8 - - 0.2 - - 0.4 - - - 0.2 - - - - 0.4 - 7.4
Canberra Parliament House - - - 3.0

























Ginninderra (Charnwood (ACT)) 0.2 - 1.0 2.6 - - - 0.2 - 1.0 3.4 - 0.2 - - 0.2 - 0.2 - - 0.4 - - 0.2 - - - - 0.2 8.6
Mount Ginini AWS 0.2 - - 11.6 0.2 0.2 - - - 4.0 9.8 - 5.6 0.2 - - - - - - - - - - - - - - - 19.0
Torrens (Darke St) - - - 5.0 - - - 0.2 - 0.6 2.6 - 1.6 - - - - - 0.4 - - 0.2






Tuggeranong (Isabella Plains) AWS 0.2 - - 5.6 - - - 0.2 - 0.8 2.0 - 1.0 - - - - - - 0.2 - - 0.2 - - - - - - 7.6
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, generally published on the first working day of each 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. 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 summary includes data from observing sites in or near the Australian Capital Territory “Greater Capital City Statistical Area” (GCCSA). The Australian Bureau of Statistics designed the GCCSAs to “include the population within the urban area of the city, as well as people who regularly socialise, shop or work within the city, and live in small towns and rural areas surrounding the city. It is important to note that GCCSAs do not define the built up edge of the city. They provide a stable definition for these cities and are designed for the output of a range of social and economic survey data.

This statement has been prepared based on information available at 11 am on Monday 1 July 2019. 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.

Further information

Media
(03) 9669 4057
Enquiries

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