Monday, 3 April 2023 - Monthly Climate Summary for Greater Perth - Product code IDCKGC11L0
Greater Perth in March 2023
Rainfall
- Most sites in Greater Perth reported above average rainfall during March, with significant rainfall falling on the last day of March.
- Several sites had their highest March daily rainfall on record, or their highest total March rainfall for at least 20 years.
Temperature
- March mean maximum temperatures were slightly above average at most sites across Greater Perth while mean minimum temperatures were close to average.
Perth Metro
- Total rainfall for Perth Metro was 41.8 mm, which is 203% of the long-term average of 20.6 mm.
- The mean daily maximum temperature for Perth Metro was 29.8 °C, which is 0.2 °C above the long-term average of 29.6 °C.
- The warmest day was 36.9 °C on the 2nd, and the coolest day was on the 31st when the temperature reached 21.9 °C.
- The mean daily minimum temperature for Perth Metro was 17.1 °C, which is 0.3 °C above the long-term average of 16.8 °C.
- The coldest morning was 14.2 °C on the 18th, and the warmest morning was on the 2nd when the minimum temperature was 23.9 °C.
Extremes Maps Records Summaries Daily observations Important notes the top
| Extremes in March 2023 | |
|---|---|
| Hottest day | 38.6 °C at Pearce RAAF on the 2nd |
| Warmest days on average | 31.6 °C at Pearce RAAF |
| Coolest days on average | 26.6 °C at Rottnest Island |
| Coldest day | 16.1 °C at Bickley on the 31st |
| Coldest night | 10.0 °C at Pearce RAAF on the 17th |
| Coolest nights on average | 13.8 °C at Karnet |
| Warmest nights on average | 19.0 °C at Rottnest Island |
| Warmest night | 24.9 °C at Pearce RAAF on the 2nd |
| Warmest on average overall | 23.9 °C at Pearce RAAF |
| Coolest on average overall | 21.4 °C at Bickley |
| Wettest overall | 79.0 mm at Huntly |
| Wettest day | 55.1 mm at Anketell on the 31st |
| Strongest wind gust | 213 km/h at Bickley on the 28th |
Extremes Maps Records Summaries Daily observations Important notes the top
| Record highest March daily rainfall | ||||||
|---|---|---|---|---|---|---|
|
New record (mm) |
Old record |
Years of record |
||||
| Wanneroo | 37.2 | on the 31st | 35.4 | on the 17th in 1983 | 78 | |
| Maida Vale | 36.6 | on the 31st | 35.4 | on the 28th in 2005 | 40 | |
| Huntly | 45.0 | on the 26th | 42.0 | on the 11th in 1998 | 34 | |
| Anketell | 55.1 | on the 31st | 48.8 | on the 23rd in 2010 | 22 | |
| Highest March total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (mm) |
Most recent higher |
Average for March |
|||
| Serpentine | 57.2 | 66.5 | in 1971* | 18.0 | |
| Huntly | 79.0 | 125.6 | in 1998 | 29.7 | |
| Jarrahdale | 74.6 | 77.0 | in 1998* | 25.2 | |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
Extremes Maps Records Summaries Daily observations Important notes the top
| Summary statistics for March 2023 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for March 2023 |
Diff from average |
Highest for March 2023 |
Mean for March 2023 |
Diff from average |
Lowest for March 2023 |
Total for March 2023 |
Average for March |
Rank of March 2023 |
Fraction of March average |
|||
| Bickley | 28.0 | +0.1 | 34.7 | 2nd | 14.8 | +0.1 | 11.3 | 28th | 72.4 | 27.3 | v high | 265% |
| Garden Island HSF | 27.5 | +0.5 | 36.8 | 2nd | 18.2 | -0.2 | 15.3 | 18th | 25.8 | 17.0 | high | 152% |
| Jandakot Aero | 29.7 | +0.1 | 37.3 | 1st | 15.9 | +0.2 | 10.5 | 17th | 40.4 | 17.1 | high | 236% |
| Karnet | 28.1 | +0.3 | 35.2 | 2nd | 13.8 | -0.6 | 10.5 | 20th | 41.4 | 25.4 | high | 163% |
| Mandurah | 28.0 | +0.2 | 35.9 | 1st | 18.2 | -0.1 | 15.1 | 28th | 17.2 | 16.5 | average | 104% |
| Millendon (Swan Valley) | 31.1 | 37.9 | 2nd | 16.1 | 10.3 | 17th | 26.2 | |||||
| Pearce RAAF | 31.6 | +1.0 | 38.6 | 2nd | 16.3 | +0.2 | 10.0 | 17th | 13.4 | 16.4 | average | 82% |
| Perth Airport | 30.6 | +0.8 | 37.9 | 1st | 16.3 | +0.3 | 11.3 | 15th | 39.4 | 16.5 | high | 239% |
| Perth Metro | 29.8 | +0.2 | 36.9 | 2nd | 17.1 | +0.3 | 14.2 | 18th | 41.8 | 20.6 | high | 203% |
| Rottnest Island | 26.6 | +0.5 | 36.1 | 2nd | 19.0 | +0.2 | 15.9 | 18th | 34.0 | 19.0 | high | 179% |
| Swanbourne | 28.3 | -0.5 | 37.4 | 1st | 17.7 | +0.1 | 14.6 | 6th | 53.6 | 22.0 | v high | 244% |
Extremes Maps Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for March 2023 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 31 | |
| Bickley | 34.0 | 34.7 | 30.7 | 26.6 | 26.2 | 27.3 | 28.8 | 30.2 | 25.3 | 27.9 | 30.5 | 32.2 | 28.5 | 29.9 | 31.2 | 25.3 | 24.2 | 25.1 | 29.6 | 34.1 | 34.0 | 31.5 | 30.4 | 22.1 | 27.8 | 23.1 | 23.0 | 23.8 | 26.3 | 27.5 | 16.1 |
| Garden Island HSF | 36.4 | 36.8 | 25.6 | 23.7 | 22.6 | 23.0 | 29.7 | 32.4 | 25.9 | 23.8 | 27.0 | 29.3 | 24.3 | 25.8 | 26.0 | 25.6 | 22.2 | 24.5 | 31.9 | 34.1 | 29.6 | 24.9 | 26.2 | 25.8 | 32.2 | 26.5 | 24.3 | 27.3 | 30.7 | 30.2 | 23.9 |
| Gosnells City | 37.6 | 29.6 | 29.3 | 34.0 | 27.1 | 36.6 | 30.9 | ||||||||||||||||||||||||
| Jandakot Aero | 37.3 | 37.0 | 30.8 | 27.1 | 26.2 | 27.1 | 31.6 | 33.7 | 27.0 | 28.1 | 31.0 | 32.9 | 28.8 | 29.1 | 29.9 | 26.9 | 26.1 | 26.1 | 32.7 | 35.9 | 34.0 | 30.8 | 29.6 | 26.0 | 30.7 | 27.3 | 26.7 | 27.6 | 30.1 | 31.3 | 22.6 |
| Karnet | 34.2 | 35.2 | 26.0 | 26.6 | 26.6 | 29.0 | 29.5 | 26.6 | 27.8 | 30.2 | 32.5 | 28.4 | 29.1 | 30.0 | 24.0 | 23.0 | 29.0 | 34.0 | 34.0 | 31.0 | 26.5 | 22.5 | 23.6 | 24.4 | 27.5 | 18.2 | |||||
| Mandurah | 35.9 | 34.9 | 27.8 | 25.8 | 24.8 | 25.5 | 29.9 | 32.2 | 26.2 | 25.8 | 26.9 | 28.1 | 27.0 | 26.6 | 26.2 | 24.1 | 23.9 | 24.8 | 31.4 | 33.3 | 34.9 | 27.8 | 28.2 | 25.8 | 30.2 | 25.2 | 25.1 | 27.3 | 29.9 | 29.0 | 22.9 |
| Millendon (Swan Valley) | 36.6 | 37.9 | 32.7 | 28.6 | 28.6 | 29.7 | 32.5 | 34.2 | 28.8 | 30.2 | 34.0 | 35.2 | 30.2 | 32.8 | 34.2 | 29.4 | 27.5 | 28.1 | 32.9 | 37.2 | 35.5 | 33.4 | 32.2 | 25.1 | 31.8 | 26.9 | 27.3 | 27.6 | 30.4 | 29.8 | 21.9 |
| Pearce RAAF | 36.2 | 38.6 | 33.7 | 29.4 | 28.9 | 30.7 | 32.7 | 34.7 | 28.9 | 30.9 | 34.0 | 36.2 | 30.9 | 33.5 | 35.3 | 29.8 | 27.6 | 28.6 | 33.5 | 37.5 | 35.2 | 34.2 | 31.9 | 26.1 | 32.3 | 28.1 | 27.6 | 28.2 | 30.9 | 30.6 | 22.8 |
| Perth Airport | 37.9 | 37.3 | 32.3 | 28.3 | 27.5 | 28.8 | 32.2 | 33.8 | 27.3 | 29.0 | 33.0 | 34.0 | 29.8 | 31.3 | 32.2 | 27.7 | 27.2 | 27.8 | 32.8 | 37.2 | 35.1 | 33.0 | 31.5 | 24.5 | 30.8 | 27.5 | 27.1 | 27.9 | 30.3 | 31.2 | 21.4 |
| Perth Metro | 36.7 | 36.9 | 30.8 | 27.1 | 26.3 | 27.2 | 31.7 | 32.8 | 27.3 | 28.5 | 32.4 | 33.2 | 28.4 | 29.9 | 31.0 | 27.7 | 26.1 | 26.4 | 32.6 | 36.5 | 33.4 | 31.3 | 29.2 | 24.4 | 30.8 | 27.0 | 26.4 | 27.5 | 30.1 | 31.3 | 21.9 |
| Rottnest Island | 32.6 | 36.1 | 25.9 | 24.5 | 23.1 | 22.8 | 26.8 | 31.6 | 25.6 | 24.5 | 26.7 | 28.9 | 25.1 | 25.7 | 26.0 | 25.5 | 22.6 | 23.0 | 29.0 | 29.9 | 27.6 | 24.9 | 25.7 | 24.5 | 28.2 | 24.7 | 23.5 | 25.1 | 27.9 | 28.5 | |
| Swanbourne | 37.4 | 37.3 | 27.4 | 25.3 | 24.2 | 24.5 | 31.9 | 33.3 | 26.0 | 25.3 | 29.8 | 29.3 | 26.2 | 26.4 | 26.5 | 26.3 | 23.9 | 25.1 | 32.7 | 34.9 | 30.1 | 26.0 | 26.2 | 25.3 | 30.5 | 26.9 | 25.8 | 27.5 | 30.2 | 31.9 | 22.9 |
|
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 March 2023 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 31 | |
| Bickley | 14.8 | 20.2 | 18.0 | 14.4 | 12.4 | 12.2 | 12.0 | 12.0 | 17.2 | 15.4 | 15.0 | 16.3 | 15.7 | 15.9 | 15.3 | 16.0 | 12.0 | 11.4 | 12.9 | 16.9 | 20.9 | 17.3 | 15.7 | 14.7 | 15.7 | 14.2 | 12.3 | 11.3 | 12.0 | 15.5 | 13.8 |
| Garden Island HSF | 20.0 | 23.0 | 19.7 | 18.3 | 16.7 | 15.7 | 16.2 | 17.3 | 20.6 | 19.2 | 17.5 | 15.9 | 19.5 | 19.6 | 15.9 | 17.0 | 17.5 | 15.3 | 16.8 | 21.7 | 22.6 | 20.0 | 18.9 | 18.1 | 18.5 | 18.9 | 16.6 | 15.4 | 16.4 | 19.1 | 16.2 |
| Gosnells City | 17.5 | 16.9 | 17.5 | 19.1 | 14.1 | 17.4 | 17.2 | ||||||||||||||||||||||||
| Jandakot Aero | 19.1 | 22.2 | 18.5 | 15.8 | 12.2 | 12.9 | 15.6 | 15.9 | 16.8 | 13.0 | 15.7 | 14.3 | 13.1 | 16.0 | 11.2 | 12.7 | 10.5 | 13.2 | 14.9 | 21.3 | 23.3 | 18.5 | 16.2 | 14.1 | 16.3 | 18.2 | 15.1 | 14.8 | 16.0 | 19.5 | 16.1 |
| Karnet | 15.8 | 20.8 | 16.6 | 12.1 | 12.0 | 12.8 | 13.0 | 15.8 | 14.8 | 15.4 | 17.5 | 15.4 | 14.2 | 12.4 | 12.1 | 11.8 | 11.1 | 10.5 | 12.0 | 12.5 | 15.4 | 11.9 | 11.5 | 12.6 | 14.4 | ||||||
| Mandurah | 19.4 | 24.7 | 20.6 | 18.1 | 16.4 | 16.0 | 15.9 | 16.5 | 18.6 | 18.7 | 18.4 | 18.9 | 18.8 | 18.8 | 17.0 | 17.9 | 16.8 | 15.5 | 16.5 | 20.1 | 23.4 | 20.1 | 18.2 | 17.9 | 19.0 | 18.6 | 16.0 | 15.1 | 15.6 | 19.3 | 16.6 |
| Millendon (Swan Valley) | 19.5 | 24.5 | 18.7 | 15.8 | 13.7 | 15.2 | 16.0 | 16.5 | 18.9 | 14.1 | 15.2 | 15.4 | 14.0 | 13.7 | 11.8 | 12.3 | 10.3 | 13.4 | 12.9 | 21.3 | 22.8 | 18.1 | 15.2 | 13.8 | 16.0 | 18.6 | 15.1 | 15.3 | 16.4 | 19.3 | 16.5 |
| Pearce RAAF | 20.6 | 24.9 | 20.0 | 16.4 | 13.7 | 14.7 | 16.6 | 17.5 | 18.6 | 14.5 | 13.8 | 15.0 | 13.5 | 12.2 | 11.2 | 12.0 | 10.0 | 13.9 | 14.0 | 21.3 | 22.6 | 19.6 | 15.3 | 13.8 | 15.9 | 18.8 | 14.7 | 15.7 | 17.0 | 19.7 | 16.9 |
| Perth Airport | 18.6 | 24.2 | 18.3 | 16.3 | 14.0 | 15.1 | 15.8 | 16.0 | 17.5 | 13.7 | 15.5 | 15.7 | 14.2 | 14.7 | 11.3 | 12.6 | 11.7 | 14.2 | 14.3 | 20.9 | 23.9 | 17.6 | 16.1 | 15.8 | 17.3 | 18.6 | 16.0 | 15.4 | 16.0 | 19.2 | 16.2 |
| Perth Metro | 19.1 | 23.9 | 18.5 | 17.7 | 15.1 | 15.9 | 15.7 | 16.1 | 17.9 | 16.0 | 16.8 | 14.5 | 16.2 | 16.3 | 14.5 | 15.1 | 14.6 | 14.2 | 16.6 | 20.5 | 23.2 | 18.5 | 18.2 | 16.4 | 16.8 | 18.5 | 16.1 | 15.3 | 16.1 | 19.8 | 16.3 |
| Rottnest Island | 20.4 | 23.6 | 20.6 | 19.4 | 16.9 | 16.5 | 17.0 | 18.5 | 20.0 | 19.9 | 19.3 | 20.4 | 20.0 | 20.5 | 19.2 | 19.8 | 17.2 | 15.9 | 17.0 | 20.6 | 22.6 | 20.6 | 19.6 | 18.9 | 18.7 | 19.3 | 16.9 | 16.9 | 17.4 | 17.7 | 16.2 |
| Swanbourne | 19.8 | 24.3 | 20.4 | 17.5 | 14.8 | 14.6 | 16.2 | 16.9 | 20.4 | 17.1 | 15.9 | 17.4 | 16.7 | 17.6 | 16.4 | 17.3 | 15.7 | 15.0 | 16.5 | 21.1 | 22.3 | 19.0 | 18.0 | 16.9 | 16.9 | 19.2 | 15.7 | 15.5 | 16.8 | 20.4 | 15.9 |
|
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 March 2023 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 31 | ||
| Anketell | - | - | 1.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.0 | - | - | - | - | - | - | - | 1.2 | 1.0 | 0.4 | - | - | - | 55.1 | |
| Araluen | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.0 | - | - | - | - | - | - | - | 1.0 | → | 2.0 | - | - | - | 30.0 | |
| Bickley | - | - | 2.4 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | 3.0 | - | - | - | - | - | - | 0.2 | 1.0 | 21.4 | - | - | - | - | 44.2 | |
| Bungendore | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | 3.4 | - | - | - | - | - | - | - | 1.0 | 8.0 | 0.2 | - | - | - | 18.8 | |
| Chidlow | - | - | 1.9 | - | - | - | - | - | 0.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.0 | → | 10.4 | - | - | - | 54.6 | |
| Garden Island HSF | - | - | 2.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.8 | 3.2 | 0.2 | - | - | - | 19.6 | ||
| Gidgegannup | - | - | 1.0 | - | - | - | - | - | 1.0 | - | - | - | - | - | - | - | 1.4 | - | - | - | - | - | - | - | 1.6 | 22.0 | 1.6 | - | - | - | 34.0 | |
| Gosnells City | → | → | → | 0.6 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||||||||||
| Huntly | - | - | 7.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | 7.0 | - | - | - | - | - | - | - | - | 45.0 | - | - | - | - | 20.0 | |
| Jandakot Aero | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.6 | - | - | - | - | - | - | - | 1.2 | 0.2 | 0.6 | - | - | - | 37.6 | |
| Jarrahdale | - | - | 1.0 | 0.2 | - | - | - | - | - | - | - | - | - | - | 0.2 | - | 5.8 | - | 0.2 | - | - | - | - | - | 2.2 | 17.2 | 1.6 | - | - | - | 46.2 | |
| Karnet | - | - | 2.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | 4.8 | - | - | - | - | - | → | → | → | 0.6 | - | - | → | 33.8 | ||
| Karragullen North | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.8 | - | - | - | - | - | - | - | - | 1.0 | 16.0 | - | - | - | - | 32.2 | |
| Maida Vale | - | - | 1.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.4 | - | - | - | - | - | - | - | 1.2 | 3.2 | - | - | - | - | 36.6 | |
| Mandurah | - | - | 3.4 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | 0.8 | - | - | - | - | - | - | - | - | 1.4 | - | - | - | - | 11.4 | |
| Millendon (Swan Valley) | - | - | 1.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | - | - | - | - | - | - | 0.6 | 0.2 | 0.2 | - | - | - | 23.6 | |
| Mount Solus | - | - | 3.0 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | 3.6 | - | - | - | - | - | - | - | 1.2 | 26.8 | 0.4 | - | - | - | 31.8 | |
| Muchea | - | - | 0.4 | 0.2 | - | - | - | - | 1.4 | - | - | - | - | - | - | - | 0.2 | - | - | - | - | - | - | - | 1.4 | 0.2 | - | - | - | - | 10.8 | |
| Mundaring | - | - | 2.6 | - | - | - | - | - | 0.8 | - | - | - | - | - | - | - | 0.5 | - | - | - | - | - | - | - | 2.6 | → | 10.4 | - | - | - | 33.0 | |
| Pearce RAAF | - | - | - | - | - | - | - | - | 0.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.4 | 0.2 | - | - | - | - | 12.0 | |
| Perth Airport | - | - | 1.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.8 | 0.2 | - | - | - | - | 36.6 | |
| Perth Metro | - | - | 1.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.4 | - | - | - | - | - | - | - | 1.2 | 0.2 | - | - | - | - | 38.8 | |
| Pinjarra Refinery | - | - | 6.3 | - | - | - | - | - | - | - | - | - | - | - | - | - | 5.1 | - | - | - | - | - | - | - | - | 1.6 | - | - | - | - | 12.2 | |
| Pinjarra South | - | - | 4.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | 3.0 | - | - | - | - | - | - | - | - | 12.6 | - | - | - | - | 11.2 | |
| Roleystone | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3.2 | - | - | - | - | - | - | - | 1.4 | 0.6 | - | - | - | - | 44.4 | |
| Rottnest Island | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.6 | 0.2 | - | - | - | - | - | - | 0.8 | 0.2 | - | - | - | 3.2 | 28.8 | |
| Serpentine | - | - | 2.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.2 | - | - | - | - | - | - | - | 1.0 | 2.2 | - | - | - | - | 49.8 | |
| Subiaco Treatment Plant | - | - | 1.0 | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||
| Swanbourne | - | - | 1.2 | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | 0.2 | - | - | - | - | - | - | 0.2 | 1.2 | - | - | - | - | - | 50.6 | |
| Tamala Park (Mindarie) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||
| Wanneroo | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | 37.2 | |
| Werribee | - | - | - | - | - | - | - | - | 1.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.2 | 0.6 | 0.4 | - | - | - | 25.0 | |
| Whiteman Park | - | - | 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 Maps 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 at 9 am on Sunday 2 April 2023. 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
