Wednesday 2 October 2024 - Monthly Climate Summary for Greater Perth - Product code IDCKGC11L0
Greater Perth in September 2024
Rainfall
- September rainfall totals were below average at all reporting sites in Greater Perth.
- Rainfall totals ranged from 33% of average at Swanbourne to 66% of average at Perth Airport.
- Mundaring was the wettest location in Greater Perth this September, receiving 85.1 mm during the month.
Temperature
- Mean maximum temperatures were above average at all sites across Greater Perth and ranged from 0.8 °C above average at Garden Island HSF to 2.8 °C above average at Perth Airport.
- Mean minimum temperatures were above average at most sites across Greater Perth and ranged from 0.1 °C below average at Garden Island HSF to 1.3 °C above average at Pearce RAAF.
- The warmest day for the month was on the 26th when most reporting stations recorded daily maximum temperatures at or above 26.0 °C.
- Perth Airport equalled its highest September mean maximum temperature on record.
Perth Metro
- Total rainfall for Perth Metro was 39.2 mm, which is 49% of the long-term average of 79.3 mm.
- The mean daily maximum temperature for Perth Metro was 22.6 °C, which is 2.0 °C above the long-term average of 20.6 °C.
- The warmest day was 28.6 °C on the 26th, and the coolest day was on the 5th when the temperature reached 15.3 °C.
- The mean daily minimum temperature for Perth Metro was 10.3 °C, which is 0.6 °C above the long-term average of 9.7 °C.
- The coldest morning was 5.8 °C on the 22nd, and the warmest morning was on the 4th when the minimum temperature was 14.5 °C.
Extremes Records Summaries Daily observations Important notes the top
| Extremes in September 2024 | |
|---|---|
| Hottest day |
29.7 °C at Pearce RAAF on the 26th 29.7 °C at Millendon (Swan Valley) on the 26th |
| Warmest days on average |
23.1 °C at Perth Airport |
| Coolest days on average |
19.8 °C at Karnet 19.8 °C at Garden Island HSF 19.8 °C at Rottnest Island |
| Coldest day |
11.0 °C at Bickley on the 5th |
| Coldest night |
4.2 °C at Jandakot Aero on the 22nd |
| Coolest nights on average |
8.3 °C at Karnet |
| Warmest nights on average |
13.3 °C at Rottnest Island |
| Warmest night |
15.8 °C at Rottnest Island on the 13th |
| Warmest on average overall |
16.6 °C at Rottnest Island |
| Coolest on average overall |
13.9 °C at Karnet |
| Wettest overall |
85.1 mm at Mundaring |
| Wettest day |
49.6 mm at Mundaring on the 5th |
| Strongest wind gust |
96.0 km/h at Garden Island HSF on the 5th |
Extremes Records Summaries Daily observations Important notes the top
| Record highest September mean maximum temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
||
| Perth Airport | 23.1 | =23.1 | in 2019 | 81 | 20.3 |
Extremes Records Summaries Daily observations Important notes the top
| Summary statistics for September 2024 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for September 2024 |
Diff from average |
Highest for September 2024 |
Mean for September 2024 |
Diff from average |
Lowest for September 2024 |
Total for September 2024 |
Average for September |
Rank of September 2024 |
Fraction of September average |
|||
| Bickley | 19.9 | +2.2 | 26.6 | 26th | 8.7 | +0.3 | 5.6 | 6th | 79.6 | 122.2 | low | 65% |
| Garden Island HSF | 19.8 | +0.8 | 25.6 | 12th | 11.9 | -0.1 | 8.2 | 17th | 21.8 | 60.5 | v low | 36% |
| Jandakot Aero | 22.3 | +2.0 | 28.2 | 13th | 9.0 | +0.6 | 4.2 | 22nd | 44.2 | 82.1 | low | 54% |
| Karnet | 19.8 | +2.1 | 26.1 | 13th | 8.3 | +1.0 | 4.5 | 29th | 68.1 | 129.1 | low | 53% |
| Mandurah | 20.4 | +1.1 | 25.8 | 14th | 12.0 | +0.1 | 9.7 | 25th | 23.4 | 57.1 | low | 41% |
| Millendon (Swan Valley) | 22.8 | 29.7 | 26th | 9.4 | 5.4 | 28th | 51.2 | |||||
| Pearce RAAF | 22.5 | +2.3 | 29.7 | 26th | 10.1 | +1.3 | 5.0 | 28th | 29.8 | 67.1 | low | 44% |
| Perth Airport | 23.1 | +2.8 | 29.5 | 26th | 9.9 | +1.0 | 5.6 | 28th | 47.2 | 72.1 | low | 66% |
| Perth Metro | 22.6 | +2.0 | 28.6 | 26th | 10.3 | +0.6 | 5.8 | 22nd | 39.2 | 79.3 | low | 49% |
| Rottnest Island | 19.8 | +0.9 | 25.6 | 12th | 13.3 | +0.3 | 10.0 | 6th | 18.2 | 51.0 | v low | 36% |
| Swanbourne | 21.4 | +1.4 | 28.3 | 13th | 11.5 | +0.4 | 8.4 | 21st | 25.6 | 76.8 | v low | 33% |
Extremes Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for September 2024 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
| Bickley | 16.4 | 22.5 | 18.0 | 16.8 | 11.0 | 14.3 | 16.8 | 18.5 | 19.9 | 19.1 | 21.9 | 24.2 | 25.2 | 22.5 | 21.3 | 21.4 | 24.6 | 23.0 | 19.6 | 18.8 | 20.2 | 24.5 | 21.3 | 18.8 | 20.7 | 26.6 | 14.4 | 15.4 | 18.4 | 22.3 |
| Garden Island HSF | 17.8 | 21.4 | 20.1 | 15.9 | 17.7 | 19.5 | 18.3 | 18.3 | 20.5 | 19.9 | 25.6 | 22.6 | 25.2 | 23.5 | 23.4 | 22.0 | 19.0 | 20.0 | 16.8 | 16.2 | 18.2 | 18.2 | 17.7 | 20.7 | 22.4 | 16.7 | 17.2 | 18.9 | 19.5 | |
| Jandakot Aero | 18.5 | 24.7 | 20.8 | 20.3 | 15.4 | 17.5 | 18.8 | 19.3 | 20.9 | 21.8 | 24.4 | 26.9 | 28.2 | 25.8 | 24.0 | 24.3 | 27.3 | 24.0 | 22.0 | 21.8 | 20.8 | 24.8 | 22.7 | 22.3 | 23.3 | 28.1 | 18.2 | 18.1 | 20.4 | 23.7 |
| Karnet | 15.9 | 23.1 | 20.5 | 16.2 | 12.1 | 15.2 | 16.7 | 17.0 | 19.0 | 18.3 | 23.1 | 24.5 | 26.1 | 23.1 | 21.0 | 21.9 | 19.5 | 19.2 | 21.4 | 20.7 | 18.9 | 20.3 | 26.0 | 15.4 | 15.9 | 17.4 | 21.2 | |||
| Mandurah | 18.1 | 20.7 | 19.5 | 18.9 | 15.4 | 17.8 | 19.4 | 18.9 | 20.0 | 20.7 | 23.2 | 25.8 | 24.1 | 23.3 | 22.2 | 21.8 | 19.2 | 19.5 | 18.3 | 21.7 | 21.0 | 20.6 | 21.8 | 22.2 | 18.1 | 17.9 | 18.6 | 21.2 | ||
| Millendon (Swan Valley) | 19.4 | 25.2 | 21.1 | 20.5 | 15.6 | 18.1 | 20.1 | 21.0 | 22.5 | 21.4 | 23.9 | 26.1 | 27.3 | 25.3 | 23.2 | 23.4 | 28.1 | 25.6 | 22.4 | 22.4 | 22.1 | 26.9 | 24.3 | 23.2 | 23.0 | 29.7 | 17.6 | 19.5 | 21.5 | 25.0 |
| Pearce RAAF | 19.5 | 25.6 | 21.5 | 20.3 | 16.2 | 17.7 | 19.8 | 20.5 | 21.8 | 23.5 | 25.9 | 27.3 | 24.9 | 23.2 | 23.5 | 27.2 | 24.6 | 21.9 | 21.5 | 21.1 | 26.0 | 23.3 | 22.0 | 23.2 | 29.7 | 17.4 | 18.7 | 21.1 | 24.7 | |
| Perth Airport | 19.8 | 25.9 | 21.2 | 20.4 | 15.3 | 18.9 | 20.5 | 21.2 | 22.8 | 22.2 | 25.0 | 27.1 | 28.2 | 25.6 | 24.1 | 24.1 | 27.8 | 25.3 | 22.7 | 22.9 | 22.0 | 26.4 | 24.1 | 23.1 | 23.4 | 29.5 | 17.6 | 18.9 | 21.2 | 25.0 |
| Perth Metro | 19.2 | 25.9 | 21.7 | 20.7 | 15.3 | 18.5 | 19.9 | 20.2 | 21.3 | 22.2 | 25.1 | 26.9 | 28.4 | 26.2 | 24.3 | 24.0 | 28.3 | 24.1 | 22.3 | 21.3 | 19.8 | 24.6 | 22.5 | 21.7 | 23.3 | 28.6 | 17.5 | 18.5 | 20.9 | 24.3 |
| Rottnest Island | 18.5 | 22.5 | 19.7 | 16.4 | 18.1 | 18.9 | 18.2 | 18.4 | 18.4 | 18.9 | 25.6 | 23.2 | 23.4 | 22.1 | 22.9 | 24.3 | 20.0 | 18.3 | 17.2 | 16.7 | 18.9 | 19.2 | 18.8 | 19.6 | 22.8 | 17.3 | 17.8 | 18.9 | 19.8 | |
| Swanbourne | 18.7 | 23.8 | 21.2 | 19.8 | 16.3 | 18.1 | 19.3 | 19.0 | 20.1 | 20.5 | 25.0 | 27.6 | 28.3 | 26.2 | 24.3 | 24.1 | 25.3 | 21.3 | 21.2 | 19.1 | 17.7 | 20.8 | 20.1 | 19.8 | 22.7 | 25.6 | 17.9 | 18.4 | 19.8 | 21.4 |
|
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 September 2024 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
| Bickley | 11.1 | 7.9 | 11.7 | 11.2 | 7.2 | 5.6 | 8.6 | 8.7 | 9.0 | 9.9 | 8.6 | 9.3 | 10.6 | 9.9 | 8.5 | 8.3 | 9.8 | 9.8 | 9.0 | 6.7 | 6.2 | 7.4 | 9.5 | 8.7 | 5.7 | 10.4 | 11.2 | 5.7 | 6.3 | 8.2 |
| Garden Island HSF | 14.6 | 10.4 | 11.0 | 10.9 | 10.8 | 10.8 | 11.3 | 12.1 | 13.1 | 11.2 | 12.6 | 13.2 | 13.8 | 12.9 | 13.5 | 8.2 | 13.1 | 11.8 | 10.3 | 11.0 | 10.8 | 13.3 | 13.1 | 10.5 | 11.9 | 14.3 | 10.1 | 12.6 | 9.6 | |
| Jandakot Aero | 14.4 | 6.3 | 8.6 | 14.2 | 10.0 | 7.4 | 7.4 | 10.4 | 9.2 | 9.1 | 11.1 | 9.6 | 10.9 | 13.4 | 12.1 | 12.6 | 5.0 | 6.1 | 11.1 | 6.4 | 4.5 | 4.2 | 6.9 | 10.5 | 9.4 | 10.7 | 12.7 | 5.7 | 5.4 | 5.6 |
| Karnet | 11.5 | 6.3 | 9.4 | 12.1 | 7.9 | 4.6 | 5.7 | 6.3 | 8.4 | 9.3 | 9.4 | 10.9 | 9.9 | 10.5 | 10.2 | 9.0 | 9.1 | 5.3 | 7.0 | 8.6 | 8.0 | 6.8 | 9.5 | 9.2 | 7.8 | 4.5 | 5.2 | |||
| Mandurah | 14.7 | 10.5 | 12.8 | 15.0 | 11.5 | 9.7 | 11.7 | 12.3 | 12.1 | 12.7 | 10.8 | 14.1 | 13.1 | 13.3 | 11.9 | 12.5 | 11.3 | 9.7 | 10.2 | 10.8 | 12.5 | 13.0 | 9.7 | 14.0 | 13.6 | 10.3 | 10.6 | 10.4 | ||
| Millendon (Swan Valley) | 13.1 | 6.1 | 8.5 | 11.9 | 10.0 | 7.0 | 7.3 | 7.2 | 8.7 | 8.8 | 11.9 | 14.0 | 14.2 | 13.5 | 11.9 | 11.6 | 7.8 | 6.5 | 11.7 | 8.8 | 7.2 | 6.8 | 8.3 | 9.7 | 9.6 | 12.7 | 10.7 | 5.4 | 5.5 | 5.7 |
| Pearce RAAF | 13.4 | 6.8 | 8.9 | 12.2 | 10.4 | 8.5 | 9.0 | 7.7 | 9.1 | 12.1 | 15.1 | 14.7 | 13.6 | 12.6 | 13.2 | 10.5 | 7.2 | 11.9 | 9.2 | 8.5 | 7.7 | 8.6 | 10.6 | 9.7 | 14.9 | 10.9 | 5.0 | 5.9 | 6.2 | |
| Perth Airport | 13.5 | 7.6 | 8.4 | 12.4 | 10.4 | 6.8 | 8.5 | 8.1 | 8.7 | 9.9 | 11.9 | 13.3 | 14.6 | 13.8 | 12.2 | 11.8 | 8.8 | 6.6 | 11.9 | 9.6 | 8.6 | 6.5 | 9.5 | 10.9 | 9.4 | 12.9 | 12.3 | 5.6 | 6.0 | 5.8 |
| Perth Metro | 14.5 | 7.1 | 10.2 | 14.5 | 10.3 | 8.6 | 9.4 | 10.3 | 10.5 | 11.4 | 11.5 | 12.1 | 11.8 | 13.7 | 12.3 | 12.2 | 8.1 | 9.2 | 11.6 | 9.0 | 7.8 | 5.8 | 9.5 | 12.2 | 9.5 | 10.7 | 13.4 | 6.8 | 8.3 | 7.2 |
| Rottnest Island | 14.7 | 13.4 | 14.9 | 10.3 | 10.0 | 13.7 | 13.8 | 13.8 | 14.1 | 12.3 | 14.9 | 15.8 | 14.6 | 13.6 | 14.1 | 14.4 | 14.6 | 12.1 | 11.0 | 11.8 | 12.2 | 14.3 | 14.2 | 11.6 | 13.9 | 13.8 | 11.4 | 13.9 | 12.7 | |
| Swanbourne | 14.8 | 8.8 | 13.5 | 15.0 | 10.6 | 10.0 | 9.9 | 11.9 | 10.7 | 11.5 | 11.7 | 13.6 | 14.0 | 14.6 | 13.0 | 12.5 | 12.4 | 10.7 | 11.4 | 9.1 | 8.4 | 9.8 | 10.0 | 11.8 | 10.2 | 14.4 | 13.6 | 8.8 | 10.2 | 9.5 |
|
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 |
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| Daily rainfall for September 2024 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | ||
| Anketell | 2.3 | 0.1 | - | 6.2 | 16.8 | 6.7 | 3.7 | 0.1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 6.6 | 4.1 | - | - | |
| Bickley | 1.6 | 0.2 | - | 9.2 | 46.4 | 8.6 | 1.8 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 5.4 | 6.0 | 0.2 | - | |
| Bungendore | 3.8 | - | 0.2 | 14.8 | 25.4 | 9.8 | 6.0 | - | - | 0.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | - | - | 8.0 | 5.8 | - | - | |
| Chidlow | - | - | - | 3.5 | 29.7 | 8.1 | 2.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 7.4 | 5.2 | |||
| Garden Island HSF | 0.6 | 0.2 | - | 3.4 | 2.2 | 0.8 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 7.0 | 7.4 | - | - | ||
| Gidgegannup | 0.4 | - | - | 5.8 | 26.4 | 5.0 | 1.0 | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 11.8 | 4.0 | - | 0.2 | |
| Gosnells City | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 10.0 | ||||
| Huntly | 4.8 | 0.8 | - | 10.0 | 33.2 | 9.0 | 9.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 6.0 | 4.2 | 0.2 | - | |
| Jandakot Aero | 0.6 | - | - | 5.2 | 13.8 | 6.4 | 2.0 | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 12.0 | 4.0 | - | - | |
| Jarrahdale | 2.4 | 0.2 | - | 9.0 | 27.6 | 10.0 | 1.8 | - | 0.2 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | 0.2 | 0.2 | - | - | 5.0 | 5.6 | - | - | ||
| Karnet | 3.0 | - | 0.1 | 16.6 | 34.1 | 4.4 | 2.8 | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4.2 | 2.6 | 0.1 | - | |
| Karragullen North | 2.4 | - | - | 11.8 | 34.4 | 11.8 | 5.6 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 7.8 | 3.6 | |||
| Maida Vale | 1.4 | - | - | 4.0 | 20.6 | 6.6 | 1.6 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 8.4 | 6.8 | |||
| Mandurah | 0.4 | - | - | 2.2 | 7.0 | 2.4 | 0.4 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4.8 | 5.0 | 1.0 | - | ||||
| Millendon (Swan Valley) | 0.2 | - | - | 5.0 | 23.8 | 4.8 | 3.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 9.4 | 4.8 | - | - | |
| Mount Solus | 1.8 | 0.2 | 0.2 | 9.0 | 30.4 | 6.6 | 2.0 | - | 0.4 | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3.6 | 2.4 | - | 0.2 | |
| Muchea | 2.4 | - | - | 2.2 | 14.2 | 8.6 | 2.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | - | - | 14.8 | 8.0 | - | - | |
| Mundaring | 1.3 | - | 5.2 | 49.6 | 9.0 | 3.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 6.2 | 10.4 | ||||
| Pearce RAAF | 0.8 | 0.2 | - | 4.2 | 19.2 | 3.0 | 2.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Perth Airport | 1.4 | - | - | 2.0 | 16.4 | 9.0 | 4.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 8.2 | 5.2 | 0.2 | - | |
| Perth Metro | 0.2 | - | - | 2.4 | 14.0 | 5.0 | 4.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 8.0 | 4.6 | 0.2 | - | |
| Pinjarra Refinery | 1.1 | 1.0 | 0.3 | 11.0 | 14.2 | 4.0 | 3.4 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.1 | - | - | - | 13.4 | 2.7 | 0.2 | 0.1 | |
| Pinjarra South | 1.4 | - | - | 8.6 | 12.0 | 4.8 | 2.8 | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 11.0 | 3.0 | 0.4 | 0.2 | |
| Roleystone | 3.6 | - | - | 11.6 | 33.8 | 11.0 | 5.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 9.2 | ||||
| Rottnest Island | - | 0.2 | 2.2 | 4.8 | 2.4 | 2.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 5.0 | 1.2 | 0.2 | - | ||
| Serpentine | 0.6 | - | - | 11.4 | 18.8 | 6.8 | 0.6 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4.8 | 5.2 | - | - | |
| Swanbourne | 0.2 | - | 0.2 | 1.8 | 10.4 | 4.4 | 2.0 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4.0 | 2.4 | - | - | |
| Tamala Park (Mindarie) | 0.2 | - | - | 2.4 | 8.0 | 3.0 | 3.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 26.0 | 7.2 | - | - | |
| Wanneroo | 1.6 | - | 4.6 | 8.2 | 5.0 | - | → | → | 3.4 | ||||||||||||||||||||||
| Werribee | 0.2 | - | - | 3.4 | 26.6 | 4.8 | 0.4 | 0.2 | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.8 | 2.0 | - | - | |
|
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 | |||||||||||||||||
Extremes Records Summaries Daily observations Important notes the top
Notes
The Monthly climate summary, usually published in the first week of the following month, 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 Wednesday 2 October 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.
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
