Monday 5 May 2025 - Monthly Climate Summary for Greater Perth - Product code IDCKGC11L0
Greater Perth in April 2025
Rainfall
- Rainfall totals for April were below average at all sites across Greater Perth. The lowest April rainfall total was 5.8 mm at Perth Airport and the highest total was 33 mm at Jarrahdale.
- April rainfall totals ranged from 15–56% of average across Greater Perth.
- During the first three weeks of April, a number of troughs followed by a cold front brought thunderstorms and showers across Greater Perth, although daily rainfall totals were mostly light (below 10 mm).
- Several moderate daily rainfall totals of 10–20 mm were recorded in and around the Perth Hills on the 14th and the 23rd.
Temperature
- Mean maximum temperatures for April at all sites across Greater Perth were above average.
- April mean maximum temperatures for Greater Perth ranged from 0.8 °C above average at Perth Metro and at coastal and offshore islands locations to 1.9 °C above average at Perth Airport.
- Mean minimum temperatures for April at all sites across Greater Perth were above average.
- April mean minimum temperatures for Greater Perth ranged from 0.4 °C above average at Swanbourne to 1.4 °C above average at Karnet.
- Perth Metro recorded three days with maximum temperatures at or above 32 °C on the 1st, 11th and 22nd, which was above its April average (2 days at or above 32 °C).
Perth Metro
- Total rainfall for Perth Metro was 9.2 mm, which is 26% of the long-term average of 35.9 mm.
- The mean daily maximum temperature for Perth Metro was 26.8 °C, which is 0.8 °C above the long-term average of 26.0 °C.
- The warmest day was 34.2 °C on the 11th, and the coolest day was on the 24th when the temperature reached 21.4 °C.
- The mean daily minimum temperature for Perth Metro was 14.8 °C, which is 1.0 °C above the long-term average of 13.8 °C.
- The coldest morning was 7.2 °C on the 25th, and the warmest morning was on the 22nd when the minimum temperature was 20.2 °C.
Extremes Records Summaries Daily observations Important notes the top
| Extremes in April 2025 | |
|---|---|
| Hottest day |
36.3 °C at Pearce RAAF on the 11th |
| Warmest days on average |
27.9 °C at Pearce RAAF |
| Coolest days on average |
24.5 °C at Bickley |
| Coldest day |
18.1 °C at Bickley on the 24th |
| Coldest night |
4.4 °C at Jandakot Aero on the 25th |
| Coolest nights on average |
13.2 °C at Bickley |
| Warmest nights on average |
17.9 °C at Rottnest Island |
| Warmest night |
22.0 °C at Rottnest Island on the 1st |
| Warmest on average overall |
21.2 °C at Rottnest Island 21.2 °C at Pearce RAAF |
| Coolest on average overall |
18.8 °C at Bickley |
| Wettest overall |
33.0 mm at Jarrahdale |
| Wettest day |
20.4 mm at Jarrahdale on the 14th |
| Strongest wind gust |
91.0 km/h at Perth Airport on the 4th |
Extremes Records Summaries Daily observations Important notes the top
Extremes Records Summaries Daily observations Important notes the top
| Summary statistics for April 2025 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for April 2025 |
Diff from average |
Highest for April 2025 |
Mean for April 2025 |
Diff from average |
Lowest for April 2025 |
Total for April 2025 |
Average for April |
Rank of April 2025 |
Fraction of April average |
|||
| Bickley | 24.5 | +1.0 | 32.5 | 11th | 13.2 | +0.6 | 7.6 | 19th | 16.0 | 54.5 | low | 29% |
| Garden Island HSF | 25.0 | +1.0 | 30.0 | 21st | 16.6 | +0.6 | 12.3 | 25th | 20.8 | 36.8 | low | 56% |
| Jandakot Aero | 26.9 | +1.1 | 33.5 | 11th | 13.8 | +1.2 | 4.4 | 25th | 19.0 | 40.9 | average | 46% |
| Karnet | 24.8 | +1.5 | 33.0 | 11th | 13.3 | +1.4 | 6.7 | 25th | 22.9 | 63.7 | low | 36% |
| Mandurah | 25.0 | +0.8 | 29.9 | 1st | 16.4 | +0.6 | 10.9 | 19th | 7.6 | 38.2 | low | 20% |
| Millendon (Swan Valley) | 27.7 | 36.1 | 11th | 14.3 | 6.3 | 27th | 12.0 | |||||
| Pearce RAAF | 27.9 | +1.4 | 36.3 | 11th | 14.6 | +1.2 | 7.0 | 27th | 15.4 | 33.6 | low | 46% |
| Perth Airport | 27.6 | +1.9 | 35.3 | 11th | 14.1 | +1.1 | 4.5 | 25th | 5.8 | 39.4 | low | 15% |
| Perth Metro | 26.8 | +0.8 | 34.2 | 11th | 14.8 | +1.0 | 7.2 | 25th | 9.2 | 35.9 | low | 26% |
| Rottnest Island | 24.6 | +0.8 | 28.7 | 11th | 17.9 | +0.6 | 13.4 | 19th | 16.6 | 32.6 | average | 51% |
| Swanbourne | 26.1 | +0.8 | 31.5 | 11th | 15.7 | +0.4 | 9.6 | 25th | 20.6 | 38.6 | average | 53% |
Extremes Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for April 2025 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 30.6 | 27.4 | 26.5 | 18.6 | 24.5 | 28.4 | 26.6 | 26.3 | 24.3 | 27.5 | 32.5 | 27.3 | 26.0 | 23.2 | 24.1 | 25.5 | 24.7 | 19.8 | 19.6 | 21.5 | 25.5 | 31.5 | 23.1 | 18.1 | 20.0 | 20.0 | 21.0 | 21.3 | 22.8 | 25.6 |
| Garden Island HSF | 27.7 | 29.6 | 29.0 | 26.2 | 29.7 | 26.6 | 26.8 | 25.2 | 22.7 | 25.4 | 29.1 | 23.4 | 26.5 | 22.9 | 23.6 | 22.8 | 22.2 | 20.7 | 22.8 | 24.3 | 30.0 | 28.7 | 25.0 | 19.8 | 21.0 | 20.8 | 21.0 | 21.2 | 25.5 | 28.4 |
| Jandakot Aero | 32.2 | 30.4 | 29.1 | 24.3 | 29.2 | 29.9 | 27.6 | 27.2 | 26.0 | 29.5 | 33.5 | 28.0 | 28.5 | 24.7 | 26.1 | 28.0 | 26.9 | 22.7 | 22.5 | 24.7 | 29.7 | 32.1 | 26.8 | 21.4 | 22.5 | 22.6 | 23.4 | 24.4 | 25.4 | 28.6 |
| Karnet | 30.5 | 26.1 | 24.4 | 19.4 | 25.6 | 28.7 | 27.0 | 26.8 | 24.0 | 27.2 | 33.0 | 24.9 | 23.2 | 23.5 | 25.0 | 21.6 | 27.8 | 30.2 | 23.5 | 18.5 | 18.6 | 20.4 | 20.8 | 22.7 | 26.6 | |||||
| Mandurah | 29.9 | 28.4 | 27.0 | 22.1 | 28.7 | 26.5 | 26.2 | 25.7 | 24.3 | 26.5 | 28.2 | 26.3 | 27.7 | 23.9 | 24.7 | 25.6 | 24.5 | 21.5 | 21.6 | 23.6 | 28.9 | 25.8 | 24.6 | 20.4 | 20.9 | 21.2 | 21.6 | 22.9 | 23.8 | 26.3 |
| Millendon (Swan Valley) | 33.7 | 30.7 | 31.1 | 22.9 | 26.6 | 31.4 | 30.1 | 29.7 | 27.5 | 30.9 | 36.1 | 29.7 | 28.2 | 27.1 | 27.1 | 29.2 | 28.4 | 23.3 | 22.4 | 24.5 | 28.3 | 34.7 | 27.2 | 22.4 | 22.6 | 22.9 | 23.7 | 24.6 | 25.9 | |
| Pearce RAAF | 34.2 | 31.6 | 31.5 | 23.7 | 26.8 | 32.3 | 30.4 | 29.8 | 27.7 | 31.3 | 36.3 | 29.0 | 28.5 | 26.9 | 27.0 | 29.5 | 28.4 | 23.4 | 22.6 | 24.8 | 27.8 | 35.1 | 27.0 | 22.1 | 22.3 | 22.4 | 23.7 | 24.4 | 26.3 | 29.4 |
| Perth Airport | 33.9 | 30.3 | 29.7 | 22.6 | 27.6 | 30.4 | 29.3 | 28.6 | 27.5 | 30.6 | 35.3 | 28.4 | 29.4 | 26.0 | 26.9 | 29.2 | 28.2 | 23.5 | 22.7 | 24.9 | 28.7 | 33.8 | 23.0 | 23.2 | 23.6 | 24.5 | 24.8 | 26.0 | 29.0 | |
| Perth Metro | 32.0 | 30.0 | 30.0 | 23.4 | 27.7 | 30.5 | 28.2 | 27.4 | 25.6 | 28.8 | 34.2 | 27.4 | 28.3 | 25.0 | 25.9 | 27.5 | 26.1 | 22.0 | 22.3 | 24.4 | 28.2 | 32.7 | 27.0 | 21.4 | 22.6 | 22.6 | 23.4 | 24.5 | 25.5 | 28.5 |
| Rottnest Island | 27.4 | 27.4 | 28.3 | 23.7 | 27.3 | 27.9 | 26.5 | 25.1 | 23.9 | 24.9 | 28.7 | 24.3 | 25.6 | 23.5 | 23.2 | 24.0 | 23.4 | 20.7 | 20.2 | 22.4 | 27.8 | 27.9 | 26.8 | 19.6 | 20.0 | 21.0 | 21.2 | 21.6 | 24.8 | 27.9 |
| Swanbourne | 29.8 | 30.7 | 30.4 | 23.9 | 29.2 | 27.5 | 26.9 | 26.1 | 24.7 | 27.3 | 31.5 | 25.3 | 28.1 | 23.6 | 25.3 | 26.7 | 25.4 | 22.3 | 22.4 | 24.4 | 29.3 | 29.8 | 25.6 | 21.0 | 22.7 | 22.6 | 21.9 | 23.9 | 26.2 | 28.8 |
|
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 April 2025 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 17.5 | 16.2 | 13.4 | 15.4 | 13.9 | 14.6 | 17.6 | 17.5 | 15.5 | 12.6 | 14.9 | 18.4 | 16.4 | 14.5 | 12.4 | 12.0 | 13.5 | 9.4 | 7.6 | 9.6 | 11.3 | 16.0 | 16.5 | 11.4 | 8.3 | 9.2 | 9.2 | 10.0 | 9.4 | 10.9 |
| Garden Island HSF | 17.5 | 19.2 | 18.5 | 17.9 | 18.2 | 18.7 | 15.9 | 21.5 | 18.8 | 16.3 | 18.5 | 20.8 | 19.3 | 15.9 | 15.9 | 15.7 | 17.3 | 13.8 | 12.3 | 13.9 | 16.4 | 21.1 | 17.6 | 15.7 | 12.3 | 12.7 | 13.6 | 13.4 | 14.1 | 14.2 |
| Jandakot Aero | 15.3 | 19.4 | 17.3 | 17.9 | 17.6 | 17.6 | 14.4 | 15.4 | 17.0 | 13.0 | 16.9 | 17.8 | 17.9 | 14.4 | 11.5 | 11.4 | 15.0 | 9.1 | 6.9 | 11.7 | 13.6 | 20.8 | 18.0 | 13.8 | 4.4 | 6.6 | 7.1 | 10.7 | 10.0 | 11.3 |
| Karnet | 17.5 | 16.5 | 14.5 | 15.0 | 14.4 | 16.0 | 15.6 | 16.8 | 15.7 | 13.0 | 16.9 | 17.5 | 14.7 | 11.6 | 12.0 | 9.1 | 12.5 | 14.9 | 16.5 | 12.0 | 6.7 | 8.0 | 8.6 | 10.5 | 12.0 | |||||
| Mandurah | 20.2 | 19.3 | 17.9 | 17.8 | 17.6 | 18.6 | 17.9 | 19.3 | 17.3 | 15.2 | 19.6 | 19.7 | 19.5 | 16.8 | 15.0 | 15.2 | 16.3 | 13.2 | 10.9 | 13.8 | 15.3 | 20.9 | 19.8 | 15.2 | 11.4 | 12.1 | 14.2 | 14.0 | 13.5 | 15.3 |
| Millendon (Swan Valley) | 18.3 | 19.6 | 18.1 | 19.6 | 17.5 | 19.3 | 14.0 | 15.9 | 15.4 | 13.5 | 16.5 | 17.1 | 17.9 | 15.6 | 12.0 | 11.5 | 17.0 | 8.4 | 10.0 | 11.7 | 15.1 | 21.3 | 17.8 | 13.5 | 6.8 | 8.5 | 6.3 | 10.1 | 8.1 | |
| Pearce RAAF | 21.3 | 19.9 | 19.5 | 18.8 | 18.2 | 18.8 | 14.6 | 16.3 | 14.8 | 13.6 | 17.4 | 17.0 | 17.6 | 16.2 | 10.6 | 12.1 | 15.8 | 10.1 | 10.5 | 8.9 | 17.3 | 20.1 | 18.7 | 13.4 | 7.1 | 8.9 | 7.0 | 10.5 | 9.5 | 12.9 |
| Perth Airport | 19.0 | 19.2 | 17.2 | 19.3 | 17.9 | 18.3 | 13.9 | 15.8 | 17.4 | 13.0 | 16.0 | 17.9 | 18.0 | 15.1 | 10.9 | 11.1 | 16.5 | 9.3 | 11.1 | 12.3 | 12.9 | 20.0 | 13.0 | 4.5 | 8.2 | 6.4 | 9.3 | 11.6 | 13.8 | |
| Perth Metro | 16.9 | 19.4 | 17.7 | 19.6 | 18.1 | 18.2 | 15.8 | 17.1 | 18.4 | 15.0 | 17.4 | 18.8 | 18.3 | 16.2 | 13.1 | 12.5 | 16.9 | 11.1 | 8.9 | 10.8 | 14.5 | 20.2 | 19.0 | 14.1 | 7.2 | 8.4 | 7.3 | 11.3 | 9.7 | 12.3 |
| Rottnest Island | 22.0 | 19.6 | 19.5 | 19.2 | 18.0 | 19.4 | 20.8 | 21.2 | 19.8 | 17.4 | 19.3 | 20.9 | 19.6 | 15.7 | 17.2 | 17.3 | 19.2 | 15.0 | 13.4 | 14.9 | 17.0 | 20.1 | 20.4 | 15.5 | 14.2 | 14.8 | 15.5 | 15.4 | 15.6 | 17.7 |
| Swanbourne | 20.3 | 19.4 | 18.4 | 19.7 | 18.3 | 17.6 | 17.3 | 19.4 | 18.6 | 14.4 | 18.0 | 18.9 | 18.1 | 16.0 | 14.3 | 12.9 | 15.9 | 11.9 | 10.2 | 12.6 | 15.7 | 20.4 | 19.2 | 13.9 | 9.6 | 11.4 | 10.8 | 11.7 | 11.6 | 14.4 |
|
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 |
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| Daily rainfall for April 2025 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | - | - | - | 1.2 | 0.8 | - | - | - | - | - | - | 1.2 | - | 11.1 | - | - | - | - | - | - | - | 0.1 | 1.6 | 2.1 | 0.1 | - | - | - | - | - | |
| Araluen | - | - | - | 1.5 | - | - | 2.8 | - | - | - | - | - | - | 10.8 | - | - | - | - | - | - | - | - | - | 4.0 | |||||||
| Bickley | - | - | - | - | 2.4 | 0.6 | - | - | - | - | - | 1.6 | 0.2 | 2.0 | 0.2 | - | - | - | - | - | - | - | 5.8 | 3.0 | - | 0.2 | - | - | - | - | |
| Bungendore | - | - | - | 0.2 | 1.2 | - | - | - | - | - | - | 1.8 | - | 17.8 | 0.2 | - | - | - | - | - | - | - | 0.6 | 2.8 | - | 0.2 | - | - | - | - | |
| Chidlow | - | - | - | 0.2 | 2.8 | - | - | - | - | - | - | 0.6 | → | 1.8 | - | - | - | - | - | → | → | 1.0 | 7.0 | 1.4 | |||||||
| Garden Island HSF | - | - | - | 2.6 | - | - | - | - | - | - | - | - | - | 7.6 | 0.2 | - | - | - | - | - | 2.8 | 7.6 | - | - | - | - | - | - | |||
| Gidgegannup | - | - | - | 0.4 | 1.2 | 1.6 | - | - | - | - | - | 0.4 | - | 2.0 | 0.2 | - | - | - | - | - | - | 1.4 | 6.4 | 1.4 | - | - | - | - | - | - | |
| Huntly | - | - | - | 7.4 | 3.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3.2 | 1.4 | - | - | - | - | - | ||
| Jandakot Aero | - | - | - | - | 0.4 | - | - | - | - | - | - | 1.0 | - | 13.8 | - | - | - | - | - | - | - | - | 2.2 | 1.6 | - | - | - | - | - | - | |
| Jarrahdale | - | - | - | 5.2 | 1.2 | - | - | - | - | 0.2 | - | 1.2 | - | 20.4 | 0.2 | 0.2 | - | - | - | - | - | - | 1.6 | 2.2 | 0.2 | - | 0.2 | - | 0.2 | - | |
| Karnet | - | - | - | 6.8 | 1.6 | - | - | - | - | - | - | 0.8 | - | 9.8 | - | - | - | - | - | - | - | 0.2 | 3.6 | 0.1 | - | - | - | - | - | ||
| Karragullen North | - | - | - | - | 2.4 | - | - | - | - | - | - | 2.8 | - | 5.8 | - | - | - | - | - | - | - | 0.4 | 0.6 | 3.2 | |||||||
| Maida Vale | - | - | - | - | - | - | - | - | - | - | - | 2.8 | - | 2.2 | - | - | - | - | - | - | - | - | - | 1.8 | |||||||
| Mandurah | - | - | - | 2.0 | 0.2 | - | - | - | - | - | - | 0.2 | - | 0.6 | - | - | - | - | - | - | - | - | 0.4 | 4.2 | - | - | - | - | - | - | |
| Millendon (Swan Valley) | - | - | - | - | 0.8 | - | - | - | - | - | - | 0.6 | - | 2.4 | - | - | - | - | - | 0.2 | 7.6 | 0.4 | - | - | - | - | - | - | |||
| Mount Solus | - | - | - | 7.0 | 2.8 | - | - | - | - | 0.2 | - | 1.4 | - | 13.8 | - | 0.2 | - | - | - | - | - | - | 1.6 | 3.0 | - | - | - | 0.2 | - | - | |
| Muchea | - | - | - | - | - | - | - | - | - | - | - | 1.0 | - | 7.8 | - | - | - | - | - | - | - | - | 8.0 | 1.2 | - | - | - | - | - | - | |
| Mundaring | - | - | - | - | 1.4 | 1.6 | - | - | - | - | - | 1.6 | - | 1.0 | - | - | - | - | - | - | - | - | 13.0 | ||||||||
| Pearce RAAF | - | - | - | 0.4 | 0.2 | - | - | - | - | - | - | 0.8 | 0.2 | 1.4 | 0.2 | - | - | - | - | - | - | 0.2 | 11.6 | 0.4 | - | - | - | - | - | - | |
| Perth Airport | - | - | - | - | 1.0 | - | - | - | - | - | - | 1.6 | - | 2.6 | - | - | - | - | - | - | - | - | 0.6 | - | - | - | - | - | - | ||
| Perth Metro | - | - | - | - | 0.8 | - | - | - | - | - | - | 1.4 | 0.2 | 4.0 | - | - | - | - | - | - | - | - | 0.6 | 2.2 | - | - | - | - | - | - | |
| Pinjarra South | - | - | - | 0.6 | 0.2 | - | - | - | - | - | - | - | - | 0.8 | - | - | - | - | - | - | - | - | 0.8 | 2.0 | - | - | - | - | - | - | |
| Roleystone | - | - | - | - | - | - | - | - | - | - | - | 4.8 | - | 9.2 | - | - | - | - | - | - | - | - | 2.6 | ||||||||
| Rottnest Island | - | - | - | 0.2 | 0.4 | 0.2 | - | - | - | - | - | - | - | 12.4 | 0.2 | - | - | - | - | - | - | - | 0.8 | 2.4 | - | - | - | - | - | - | |
| Serpentine | - | - | - | 4.2 | 0.6 | - | - | - | - | - | - | 1.0 | - | 9.8 | - | - | - | - | - | - | - | - | 0.4 | 0.8 | - | - | - | - | - | - | |
| Swanbourne | - | - | - | - | 1.2 | - | - | - | - | - | - | 2.0 | 0.2 | 9.8 | 0.2 | - | - | - | - | - | - | 0.2 | 4.2 | 2.8 | - | - | - | - | - | - | |
| Tamala Park (Mindarie) | - | - | - | - | - | - | - | - | - | - | - | - | - | 9.4 | - | - | - | - | - | - | - | 0.1 | 0.8 | 4.3 | |||||||
| Werribee | - | - | - | 0.2 | 2.8 | 1.4 | 0.2 | - | - | - | - | 0.4 | - | 2.4 | - | - | - | - | - | - | - | 2.6 | 3.8 | 3.2 | - | - | - | - | - | - | |
|
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 Monday 5 May 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 available years of record, excluding the current year. The length of record can
vary widely from site to site. Averages are not shown for sites with fewer 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
