Greater Perth in 2024

Rainfall

  • Rainfall totals for 2024 were below average to near average at most sites across Greater Perth.
  • 2024 rainfall totals ranged from around 70% to 101% of average across Greater Perth.

Temperature

  • Mean maximum temperatures for 2024 at all sites across Greater Perth were above average.
  • 2024 mean maximum temperatures for Greater Perth ranged from 1.0 °C above average at Swanbourne and Rottnest Island to 2.5 °C above average at Perth Airport.
  • Most sites across the Greater Perth had their warmest year on record. in terms of annual mean maximum temperatures.
  • Perth Metro recorded an annual mean maximum temperature of 26.2 °C in 2024, which was not only the highest annual mean maximum temperature at the current Perth official site in 30 years of record, but also the highest in the Perth composite temperature records which commenced in 1897.
  • Mean minimum temperatures for 2024 at all sites across Greater Perth were above average.
  • 2024 mean minimum temperatures for Greater Perth ranged from 0.6 °C above average at Garden Island HSF to 1.7 °C above average at Jandakot Aero.
  • Some sites, including Perth Airport and Perth Metro (Mt Lawley) had their warmest nights on record. in terms of annual mean minimum temperatures.
  • February was exceptionally warm across Greater Perth, and the Greater Perth and western WA experienced severe heatwave conditions between 17 and 20 February. A number of sites had their highest temperature for any month on record.

Perth Metro

  • Total rainfall for Perth Metro was 613.6 mm, which is 84% of the long-term average of 730.8 mm.
  • The mean daily maximum temperature for Perth Metro was 26.2 °C, which is 1.3 °C above the long-term average of 24.9 °C.
  • The warmest day was 43.4 °C on 23 December 2024, and the coolest day was on 5 September 2024 when the temperature reached 15.3 °C.
  • The mean daily minimum temperature for Perth Metro was 14.1 °C, which is 1.2 °C above the long-term average of 12.9 °C.
  • The coldest morning was 3.3 °C on 4 August 2024, and the warmest morning was on 19 February 2024 when the minimum temperature was 27.5 °C.

Extremes in 2024
Hottest day 46.1 °C at Pearce RAAF on 19 February
Warmest days on average 27.2 °C at Millendon (Swan Valley)
Coolest days on average 23.3 °C at Rottnest Island
Coldest day 11.0 °C at Bickley on 5 September
Coldest night 2.0 °C at Karnet on 4 August
Coolest nights on average 12.0 °C at Karnet
Warmest nights on average 16.5 °C at Rottnest Island
Warmest night 28.7 °C at Swanbourne on 19 February
Warmest on average overall 20.4 °C at Perth Airport
Coolest on average overall 18.2 °C at Bickley
Wettest overall 1109.8 mm at Karragullen(some rainfall missing)
Wettest day 80.0 mm at Jarrahdale on 7 August
Strongest wind gust 111.0 km/h at Rottnest Island on 29 May

Record highest year temperature
New record
(°C)
Old
record
Years of
record
Average for
year
Pearce RAAF 46.1 on 19 February 46.0 on 04 Jan 1977 74 25.3
Bickley 42.1 on 1 February 42.0 on 26 Feb 1997 31 22.6
Mandurah 42.0 on 16 January 41.6 on 11 Jan 2014 24 23.4



Record highest year mean maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
year
Perth Airport 27.1 26.2 in 2023 79 24.6
Karnet 24.1 24.0 in 1994 39 22.6
Jandakot Aero 26.2 25.8 in 2011 32 24.7
Perth Metro 26.2 25.7 in 2019 30 24.8
Rottnest Island 23.3 23.2 in 2011 29 22.3
Bickley 24.1 23.4 in 2010 27 22.6
Garden Island HSF 24.1 23.9 in 2011 21 22.8
Mandurah 24.6 24.2 in 2011 20 23.3



Record highest year mean minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
year
Perth Airport 13.7 =13.7 in 1963 79 12.2
Jandakot Aero 13.4 12.9 in 2011 32 11.6
Perth Metro 14.1 14.0 in 2011 30 12.9
Swanbourne 15.2 14.9 in 2011 27 14.0
Bickley 12.4 12.2 in 2011 26 11.3



Record highest year mean temperature
New record
(°C)
Old
record
Years of
record
Average for
year
Perth Airport 20.4 19.8 in 2011 79 18.4
Jandakot Aero 19.8 19.3 in 2011 32 18.1
Perth Metro 20.2 19.9 in 2011 30 18.9
Bickley 18.2 17.7 in 2011 26 17.0
Mandurah 20.2 20.0 in 2011 20 19.1




Summary statistics for 2024
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
year
2024
Diff
from
average
Highest for
year
2024
Mean for
year
2024
Diff
from
average
Lowest for
year
2024
Total for
year
2024
Average
for
year
Rank of
year
2024
Fraction of
year
average
Bickley 24.1 +1.5 42.1 01 Feb 2024 12.4 +1.1 3.7 06 Jul 2024 1091.0 1081.4 average 101%
Garden Island HSF 24.1 +1.3 43.0 18 Feb 2024 15.6 +0.6 7.0 24 Jul 2024 606.8 612.5 average 99%
Jandakot Aero 26.2 +1.5 43.5 23 Dec 2024 13.4 +1.7 2.3 03 Jul 2024 748.8 812.1 average 92%
Karnet 24.1 +1.5 41.8 01 Feb 2024 12.0 +1.3 2.0 04 Aug 2024 982.3 1134.2 low 87%
Mandurah 24.6 +1.2 42.0 16 Jan 2024 15.7 +0.9 7.4 03 Jul 2024 535.2 634.8 low 84%
Millendon (Swan Valley) 27.2 45.1 01 Feb 2024 13.4 2.3 04 Aug 2024 648.0
Pearce RAAF 46.1 19 Feb 2024 2.9 24 Jun 2024 575.0 651.2 average 88%
Perth Airport 27.1 +2.5 44.6 01 Feb 2024 13.7 +1.5 2.4 24 Jun 2024 615.2 754.4 low 82%
Perth Metro 26.2 +1.3 43.4 23 Dec 2024 14.1 +1.2 3.3 04 Aug 2024 613.6 730.8 low 84%
Rottnest Island 23.3 +1.0 40.6 09 Feb 2024 16.5 +0.7 10.0 06 Sep 2024 438.6 562.6 v low 78%
Swanbourne 25.1 +1.0 43.0 18 Feb 2024 15.2 +1.1 5.6 25 Jun 2024 516.2 735.3 v low 70%

Notes

The Annual climate summary lists the main features of the weather in Greater Perth using the most timely and accurate information available on the date of publication; it will generally not be updated.

This summary includes data from observing sites in or near the Greater Perth “Greater Capital City Statistical Area” (GCCSA). The Australian Bureau of Statistics designed the GCCSAs to represent a socio-economic definition of each capital city. This means the greater capital city boundary includes people who regularly socialise, shop or work within the capital city, but live in the small towns and rural areas surrounding the capital city. It does not define the built up edge of the capital city.

This statement has been prepared based on information available on Tuesday 28 January 2025. 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 previous 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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Climate