Tuesday 28 January 2025 - Annual Climate Summary for Greater Perth - Product code IDCKGC51L0
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 Records Summaries Important notes the top
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 |
Extremes Records Summaries Important notes the top
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 |
Extremes Records Summaries Important notes the top
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% |
Extremes Records Summaries Important notes the top
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.
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence