Monday, 3 July 2017 - Monthly Climate Summary for Perth - Product code IDCKGC11L0
Perth in June 2017: Very warm and dry
Most Perth sites recorded rain on only four or five days during June 2017, and rainfall totals were less than half the long-term average as a result. Daytime temperatures were mostly above average for the first 21 days, but below average after that, and it was the warmest June on record across Perth. Mean minimum temperatures were slightly below average for costal plain sites but above average on the hills and near the coast.
Well below average rainfall across Perth
- Monthly rainfall across Perth was less than half of the June average, with totals mostly in the 30 mm to 60 mm range and driest June since 2013
- Rainfall was recorded on four or five days for most sites, compared with the average of 15 or 16 rain days in June
- Perth Metro registered four rain days, which broke the previous June record low of five rain days set in June 2006
- A cut-off low pressure system over southwest WA produced daily rainfalls of 20 mm to 50 mm for most Perth Metropolitan sites on the 22nd
- A daily total of 61.2 mm of rainfall at Perth Metro on the 22nd was its wettest June day for 31 years, since a daily rainfall of 77.1 mm was recorded on 25 June 1986
Well above average mean maximum temperatures
- June was the warmest on record for all
sites, with mean maximum temperatures 1 °C to 3 °C above average
across Perth
- Perth Metro recorded a mean maximum of 21.4 °C, its warmest June from records dating back to 1897; the previous record was 21.0 °C in 2015
- Perth Metro recorded its longest run of consecutive days at or above 22 °C (9 days), 21 °C (13 days), and 19 °C (21 days) on record for June
- The warmest day was on the 5th with daily maxima in the mid-20s; Gosnells and Medina had their highest June temperature on record
- Mean minimum temperatures were below average for coastal plain sites but above average near the coast and in the hills
- Rottnest Island had its highest daily minimum temperature on record on the 3rd, and its mildest June nights on record
Smoke affected Perth in early June
- Smoke from prescribed burns impacted Perth communities in early June due to a high pressure system dominating over southern Australia. On the 7th, thick smoke reduced visibility down to 1500 metres at Perth Airport and triggered smoke alarms in the Swan City Council building in Midland.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Extremes Maps Records Summaries Daily observations Important notes the top
| Extremes in June 2017 | |
|---|---|
| Hottest day | 26.7 °C at Medina Research Centre on the 5th |
| Warmest days on average | 22.1 °C at Medina Research Centre |
| Coolest days on average | 18.0 °C at Bickley |
| Coldest day | 13.6 °C at Bickley on the 22nd |
| Coldest night | 1.5 °C at Pearce RAAF on the 26th |
| Coolest nights on average | 7.1 °C at Jandakot Aero |
| Warmest nights on average |
14.5 °C at Rottnest Island 11.0 °C at Swanbourne |
| Warmest night |
18.0 °C at Rottnest Island on the 3rd 14.9 °C at Gosnells City on the 14th |
| Warmest on average overall |
17.3 °C at Rottnest Island 16.0 °C at Swanbourne |
| Coolest on average overall | 13.3 °C at Bickley |
| Wettest overall | 88.0 mm at Perth Metro |
| Driest overall | 25.2 mm at Werribee |
| Wettest day | 61.2 mm at Perth Metro on the 22nd |
| Strongest wind gust | 81 km/h at Rottnest Island on the 23rd |
Extremes Maps Records Summaries Daily observations Important notes the top
| Lowest June total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (mm) |
Most recent lower |
Average for June |
|||
| Rottnest Island | 11.8 | 6.8 | in 1994* | 95.3 | |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported
| Record highest June temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
|||
| Medina Research Centre | 26.7 | on the 5th | 26.5 | on the 11th in 2015 | 32 | 19.4 |
| Gosnells City | 26.1 | on the 5th | 26.0 | on the 12th in 2000 | 26 | 19.7 |
| Record highest June mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
||
| Perth Metro | 21.4 | 21.0 | in 2015 | 119 | 19.4 |
| Perth Airport | 21.5 | 21.0 | in 2015 | 73 | 19.0 |
| Pearce RAAF | 21.8 | 21.2 | in 2015 | 56 | 18.9 |
| Medina Research Centre | 22.1 | 21.1 | in 2015 | 31 | 19.4 |
| Rottnest Island | 20.1 | 19.7 | in 2015 | 27 | 18.7 |
| Jandakot Aero | 21.2 | 20.7 | in 2015 | 26 | 19.0 |
| Gosnells City | 21.7 | 21.1 | in 2015 | 25 | 19.7 |
| Bickley | 18.0 | 17.5 | in 2015 | 23 | 16.1 |
| Record highest June daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
|||
| Rottnest Island | 18.0 | on the 3rd | 17.8 | on the 3rd in 2005 | 28 | 13.3 |
| Record highest June mean daily minimum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
||
| Rottnest Island | 14.5 | 14.4 | in 2004 | 27 | 13.3 |
| Record highest June mean temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
||
| Rottnest Island | 17.3 | 17.0 | in 2015 | 27 | 16.0 |
| Bickley | 13.3 | = 13.3 | in 2015 | 23 | 12.1 |
Extremes Maps Records Summaries Daily observations Important notes the top
| Summary statistics for June 2017 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for June 2017 |
Diff from average |
Highest for June 2017 |
Mean for June 2017 |
Diff from average |
Lowest for June 2017 |
Total for June 2017 |
Average for June |
Rank of June 2017 |
Fraction of June average |
|||
| Bickley | 18.0 | +1.9 | 21.8 | 5th | 8.6 | +0.5 | 3.6 | 29th | 60.4 | 194.7 | v low | 31% |
| Garden Island HSF | 20.3 | +1.3 | 23.8 | 11th | 12.4 | +0.3 | 9.0 | 30th | 39.8 | 103.6 | v low | 38% |
| Gosnells City | 21.7 | +2.0 | 26.1 | 5th | 6.4 | 30th | 55.1 | 165.2 | v low | 33% | ||
| Jandakot Aero | 21.2 | +2.2 | 24.9 | 5th | 7.1 | -0.3 | 3.3 | 30th | 53.6 | 153.0 | v low | 35% |
| Medina Research Centre | 22.1 | +2.7 | 26.7 | 5th | 8.6 | -0.4 | 4.4 | 26th | 46.3 | 136.9 | v low | 34% |
| Millendon (Swan Valley) | 21.5 | 25.4 | 13th | 7.5 | 2.1 | 26th | 35.8 | |||||
| Pearce RAAF | 21.8 | +2.9 | 26.4 | 5th | 8.1 | -1.3 | 1.5 | 26th | 39.0 | 130.2 | v low | 30% |
| Perth Airport | 21.5 | +2.5 | 25.3 | 5th | 8.6 | -0.4 | 2.8 | 26th | 52.4 | 155.9 | v low | 34% |
| Perth Metro | 21.4 | +2.0 | 25.6 | 5th | 7.9 | -0.7 | 1.9 | 9th | 88.0 | 172.9 | low | 51% |
| Rottnest Island | 20.1 | +1.4 | 23.5 | 6th | 14.5 | +1.2 | 11.3 | 25th | ||||
| Swanbourne | 21.0 | +1.6 | 25.4 | 5th | 11.0 | +0.4 | 6.9 | 26th | 55.8 | 122.2 | v low | 46% |
|
Note:
Observations for “Perth Metro” are taken from the current site at
Mount Lawley (Bureau number 009225).
Comparisons are made against combined data from the current site (which opened in early 1993) and the previous site at Perth Regional Office (009034), which ran from 1876 to early 1992. | ||||||||||||
Extremes Maps Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for June 2017 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 19.7 | 20.4 | 20.2 | 19.9 | 21.8 | 21.0 | 19.5 | 19.0 | 20.3 | 17.5 | 19.9 | 20.5 | 20.8 | 17.8 | 15.0 | 17.3 | 18.4 | 19.5 | 19.7 | 20.0 | 16.6 | 13.6 | 14.9 | 14.7 | 13.8 | 14.4 | 15.8 | 15.1 | 15.7 | 15.8 |
| Garden Island HSF | 21.9 | 22.3 | 21.8 | 19.7 | 23.4 | 23.4 | 20.1 | 22.6 | 23.2 | 21.1 | 23.8 | 22.9 | 21.5 | 19.2 | 18.1 | 19.7 | 20.8 | 20.7 | 20.8 | 21.5 | 19.4 | 17.0 | 19.6 | 17.7 | 17.0 | 16.6 | 16.8 | 18.5 | 18.4 | 19.7 |
| Gosnells City | 23.0 | 24.0 | 23.1 | 23.4 | 26.1 | 25.4 | 23.1 | 23.0 | 24.5 | 21.5 | 24.0 | 24.4 | 23.7 | 21.3 | 19.7 | 20.8 | 21.9 | 23.0 | 22.9 | 23.3 | 21.0 | 17.0 | 19.2 | 18.3 | 17.0 | 17.8 | 19.3 | 19.2 | 19.5 | 19.9 |
| Jandakot Aero | 22.6 | 23.5 | 23.2 | 21.9 | 24.9 | 24.8 | 22.6 | 22.2 | 23.6 | 21.5 | 23.7 | 23.7 | 22.7 | 19.9 | 20.7 | 21.1 | 22.4 | 22.2 | 22.3 | 20.0 | 16.5 | 19.5 | 17.9 | 16.6 | 17.7 | 18.7 | 18.3 | 18.6 | 20.6 | |
| Karnet | 19.6 | 20.0 | 22.8 | 21.6 | 19.5 | 21.2 | 22.0 | 19.8 | 22.0 | 17.9 | 19.2 | 20.9 | 21.0 | 17.0 | 14.0 | 15.0 | 14.5 | 14.0 | 15.0 | 15.5 | ||||||||||
| Medina Research Centre | 23.0 | 24.0 | 23.0 | 26.7 | 25.6 | 23.2 | 22.8 | 24.0 | 22.0 | 24.2 | 24.0 | 22.4 | 21.2 | 20.3 | 21.8 | 22.1 | 23.3 | 23.7 | 23.6 | 20.3 | 17.0 | 21.0 | 19.2 | 18.3 | 19.4 | 19.4 | ||||
| Millendon (Swan Valley) | 22.8 | 24.6 | 23.0 | 22.6 | 25.4 | 25.1 | 22.8 | 22.7 | 24.2 | 21.2 | 23.8 | 23.9 | 25.4 | 20.1 | 20.1 | 21.0 | 21.7 | 23.1 | 23.0 | 23.4 | 20.4 | 17.3 | 19.1 | 17.8 | 16.9 | 17.9 | 19.0 | 18.6 | 18.6 | 20.5 |
| Pearce RAAF | 23.6 | 25.1 | 23.1 | 23.3 | 26.4 | 25.8 | 23.1 | 23.0 | 24.5 | 21.6 | 24.1 | 24.6 | 25.5 | 20.1 | 21.4 | 21.7 | 21.4 | 23.2 | 23.5 | 20.6 | 18.8 | 19.3 | 18.2 | 16.6 | 17.8 | 18.9 | 18.5 | 19.2 | 20.5 | |
| Perth Airport | 23.3 | 24.2 | 23.1 | 22.6 | 25.3 | 25.2 | 22.8 | 22.5 | 24.1 | 20.8 | 23.5 | 24.0 | 24.8 | 20.4 | 19.3 | 20.8 | 21.7 | 23.3 | 22.9 | 23.0 | 20.7 | 16.6 | 19.2 | 18.4 | 16.8 | 18.2 | 18.9 | 18.6 | 19.2 | 19.7 |
| Perth Metro | 22.8 | 24.2 | 22.7 | 22.2 | 25.6 | 25.4 | 22.6 | 22.5 | 24.3 | 21.0 | 23.6 | 24.2 | 24.6 | 20.9 | 19.6 | 21.2 | 21.6 | 23.4 | 23.0 | 22.5 | 19.9 | 16.8 | 18.9 | 18.2 | 17.0 | 17.8 | 18.5 | 18.7 | 18.7 | 19.8 |
| Rottnest Island | 21.5 | 22.7 | 22.0 | 19.5 | 23.0 | 23.5 | 19.7 | 21.3 | 23.3 | 21.0 | 23.0 | 22.9 | 22.2 | 18.6 | 19.9 | 19.5 | 21.0 | 21.6 | 19.6 | 17.4 | 18.6 | 17.0 | 15.9 | 16.4 | 16.5 | 17.4 | 18.5 | 20.3 | ||
| Swanbourne | 22.0 | 23.1 | 22.5 | 21.4 | 25.4 | 24.3 | 22.4 | 22.6 | 24.3 | 21.1 | 23.5 | 24.5 | 22.7 | 20.0 | 19.0 | 20.5 | 21.8 | 22.8 | 22.2 | 21.5 | 19.5 | 17.1 | 18.6 | 17.6 | 16.8 | 17.1 | 17.7 | 18.9 | 19.4 | 20.0 |
|
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 June 2017 | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 12.2 | 11.0 | 12.2 | 11.7 | 9.5 | 9.8 | 11.3 | 8.5 | 5.5 | 8.2 | 8.3 | 6.9 | 8.5 | 10.5 | 11.1 | 8.1 | 8.1 | 7.0 | 8.7 | 9.6 | 9.3 | 10.8 | 10.6 | 7.4 | 5.8 | 4.8 | 6.7 | 6.1 | 3.6 | 6.6 |
| Garden Island HSF | 12.4 | 12.9 | 15.0 | 14.1 | 12.3 | 12.4 | 12.0 | 13.6 | 12.8 | 9.4 | 14.7 | 13.6 | 14.6 | 13.9 | 13.8 | 11.0 | 10.5 | 12.8 | 12.5 | 13.4 | 14.8 | 14.2 | 13.9 | 11.2 | 10.3 | 10.2 | 9.9 | 10.0 | 10.7 | 9.0 |
| Gosnells City | 10.0 | 10.0 | 11.0 | 12.9 | 14.0 | 14.5 | 8.9 | 12.5 | 14.5 | 13.5 | 10.5 | 14.9 | 13.5 | 8.8 | 9.1 | 11.9 | 8.1 | 11.6 | 13.5 | 10.2 | 9.8 | 6.4 | ||||||||
| Jandakot Aero | 6.7 | 5.7 | 8.0 | 10.2 | 9.6 | 7.7 | 5.3 | 8.6 | 4.6 | 5.1 | 7.6 | 6.8 | 3.7 | 12.8 | 10.9 | 5.4 | 6.1 | 6.1 | 3.9 | 5.3 | 10.6 | 12.9 | 12.9 | 8.7 | 3.7 | 3.5 | 3.4 | 6.3 | 6.1 | 3.3 |
| Karnet | 12.0 | 8.7 | 9.4 | 6.2 | 9.0 | 7.6 | 7.0 | 11.5 | 7.0 | 5.1 | 6.2 | 6.1 | 8.5 | 11.0 | 11.0 | 8.0 | 3.5 | 7.0 | 4.5 | 6.1 | ||||||||||
| Medina Research Centre | 7.4 | 7.1 | 10.0 | 7.0 | 10.6 | 6.3 | 11.4 | 6.8 | 6.8 | 12.0 | 11.5 | 11.0 | 12.9 | 10.6 | 6.7 | 5.6 | 8.6 | 4.7 | 9.1 | 10.9 | 13.1 | 12.9 | 9.0 | 4.4 | 4.4 | 5.9 | 4.6 | |||
| Millendon (Swan Valley) | 6.5 | 6.7 | 7.9 | 11.3 | 9.3 | 9.7 | 3.6 | 8.6 | 6.2 | 6.3 | 9.0 | 8.0 | 8.0 | 13.4 | 8.8 | 5.2 | 4.7 | 10.1 | 3.5 | 6.1 | 7.8 | 12.8 | 13.2 | 10.4 | 3.8 | 2.1 | 3.5 | 8.4 | 5.6 | 3.4 |
| Pearce RAAF | 6.0 | 6.3 | 6.6 | 13.4 | 8.8 | 11.8 | 2.5 | 8.9 | 12.6 | 7.6 | 12.7 | 9.6 | 12.0 | 13.6 | 6.8 | 4.4 | 5.1 | 10.5 | 4.9 | 6.4 | 7.8 | 13.0 | 13.0 | 11.6 | 5.4 | 1.5 | 2.6 | 7.6 | 6.9 | 4.4 |
| Perth Airport | 7.4 | 8.3 | 9.1 | 12.8 | 10.1 | 9.2 | 5.0 | 9.9 | 7.7 | 7.7 | 11.4 | 10.1 | 10.8 | 12.1 | 9.9 | 6.6 | 5.0 | 10.0 | 7.8 | 10.6 | 9.9 | 12.6 | 13.4 | 11.0 | 4.9 | 2.8 | 3.8 | 7.2 | 6.8 | 3.6 |
| Perth Metro | 8.2 | 8.7 | 10.3 | 12.1 | 9.7 | 8.6 | 5.9 | 8.5 | 1.9 | 6.0 | 8.1 | 6.4 | 6.7 | 12.9 | 10.9 | 6.5 | 7.0 | 7.5 | 5.5 | 7.8 | 10.3 | 13.0 | 13.3 | 11.5 | 6.3 | 3.5 | 4.7 | 6.3 | 3.4 | 5.3 |
| Rottnest Island | 16.5 | 16.3 | 18.0 | 14.7 | 13.4 | 16.5 | 15.1 | 14.0 | 14.8 | 16.6 | 16.1 | 15.9 | 16.3 | 14.0 | 15.2 | 13.9 | 14.1 | 15.0 | 14.6 | 15.5 | 15.3 | 13.4 | 14.0 | 12.1 | 11.3 | 11.5 | 12.8 | 11.9 | 12.9 | 14.2 |
| Swanbourne | 11.6 | 11.5 | 12.9 | 13.0 | 11.4 | 13.6 | 9.4 | 10.9 | 10.0 | 11.7 | 12.1 | 11.6 | 11.7 | 13.0 | 13.0 | 9.7 | 9.5 | 11.1 | 9.5 | 10.8 | 13.6 | 13.7 | 12.9 | 10.4 | 7.8 | 6.9 | 8.8 | 8.2 | 8.3 | 10.0 |
|
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 June 2017 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | - | - | - | - | - | - | - | - | - | - | - | - | - | 7.4 | - | - | - | - | - | - | - | 47.8 | 3.0 | 0.4 | - | - | - | - | - | - | |
| Bickley | - | 0.2 | 0.2 | - | 0.4 | - | - | 0.2 | - | - | - | - | - | 13.0 | - | 0.2 | 0.2 | 0.2 | - | 0.2 | 0.2 | 34.2 | 10.0 | 0.4 | 0.2 | - | - | 0.2 | 0.2 | 0.2 | |
| Bungendore | 0.2 | 0.2 | 0.2 | 0.2 | 0.4 | - | - | - | - | - | - | - | - | 8.8 | - | 0.2 | 0.4 | - | 0.2 | 0.2 | 0.2 | 34.6 | 11.6 | - | 0.2 | 0.2 | - | 0.2 | - | - | |
| Chidlow | - | - | - | - | - | - | - | - | - | - | - | - | - | 8.0 | - | - | - | - | - | - | 0.1 | 20.0 | 7.6 | 1.6 | - | - | - | - | - | - | |
| Garden Island HSF | - | 0.2 | 0.6 | - | - | - | - | - | - | - | - | - | - | 7.6 | - | - | - | 0.2 | - | - | 1.6 | 25.6 | 4.0 | - | - | - | - | - | - | - | |
| Gidgegannup | - | - | - | 0.2 | - | - | - | - | - | - | - | - | - | 9.6 | - | - | - | - | - | - | 0.4 | 6.6 | 10.0 | 4.8 | 3.4 | 8.4 | - | - | - | - | |
| Gosnells City | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.1 | 54.8 | 0.2 | - | - | - | - | - | - | - | |
| Jandakot Aero | - | - | - | 1.0 | - | - | - | - | - | - | - | - | - | 10.8 | - | - | - | - | 0.4 | 40.8 | 0.6 | - | - | - | - | - | - | - | |||
| Jarrahdale | - | 0.2 | 0.2 | 0.2 | 0.2 | 0.4 | - | 0.2 | 0.2 | 0.2 | - | - | 0.2 | 7.2 | - | 0.2 | 0.4 | 0.2 | 0.2 | 0.2 | 0.4 | 32.4 | 12.4 | 0.2 | 0.2 | - | 0.2 | 0.4 | 0.2 | 0.2 | |
| Karnet | 0.2 | - | - | - | - | - | - | - | - | - | 12.0 | - | - | - | - | - | → | 30.0 | 17.0 | 4.0 | 0.1 | - | - | - | |||||||
| Karragullen North | - | - | - | - | - | - | - | - | - | - | - | - | - | 23.4 | - | - | - | - | - | - | 1.6 | 37.2 | 6.4 | ||||||||
| Maida Vale | - | - | - | - | - | - | - | - | - | - | - | - | - | 11.2 | - | 0.2 | - | - | - | - | - | 33.6 | 1.4 | - | 0.2 | - | - | - | - | - | |
| Medina Research Centre | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | 10.2 | - | - | - | - | - | - | 0.4 | 30.4 | 4.6 | 0.5 | - | - | - | - | - | - | |
| Midland | - | - | - | - | - | - | - | - | - | - | - | - | - | 9.4 | - | - | - | - | - | - | - | 33.0 | - | - | - | - | - | - | - | - | |
| Millendon (Swan Valley) | - | - | - | - | - | - | - | - | - | - | - | - | - | 9.4 | - | - | - | - | - | - | - | 25.4 | 1.0 | - | - | - | - | - | - | - | |
| Mount Helena | 8.4 | 23.2 | 8.2 | ||||||||||||||||||||||||||||
| Mundaring | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | 10.2 | - | - | - | - | - | 0.6 | 0.2 | 24.6 | 6.8 | → | → | 1.4 | - | - | - | - | |
| Pearce RAAF | - | - | - | - | - | - | - | - | - | - | - | - | - | 8.8 | - | - | - | - | - | - | 28.8 | 1.4 | - | - | - | - | - | - | - | ||
| Perth Airport | - | - | - | - | - | - | - | - | - | - | - | - | - | 14.6 | - | - | - | - | - | - | - | 37.8 | - | - | - | - | - | - | - | - | |
| Perth Metro | - | - | - | - | - | - | - | - | - | - | - | - | - | 26.2 | - | - | - | - | - | - | 0.2 | 61.2 | 0.4 | - | - | - | - | - | - | - | |
| Pickering Brook | 23.0 | 30.2 | 0.8 | ||||||||||||||||||||||||||||
| Roleystone | - | - | - | - | - | - | - | - | - | - | - | - | - | 17.0 | - | - | - | - | - | - | 0.6 | 41.8 | 6.2 | - | - | - | - | - | - | - | |
| Rottnest Island | 0.2 | - | 0.2 | - | - | - | - | - | - | - | - | - | - | 11.0 | - | - | - | - | 0.2 | 0.2 | - | - | - | - | - | - | - | ||||
| Serpentine | - | - | - | - | - | - | - | - | - | - | - | - | - | 9.2 | - | - | - | - | - | - | - | 21.8 | 15.6 | - | - | - | - | - | - | - | |
| Swanbourne | - | - | - | 0.2 | - | - | - | - | - | - | - | - | - | 14.4 | - | - | - | - | - | 0.2 | 0.4 | 37.2 | 3.4 | - | - | - | - | - | - | - | |
| Tamala Park (Mindarie) | - | - | - | - | - | - | - | - | - | - | - | - | - | 12.4 | |||||||||||||||||
| Wanneroo | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | 14.6 | - | - | - | - | - | 0.4 | 0.6 | 38.5 | 1.8 | ||||||||
| Werribee | - | - | - | - | - | - | - | - | - | - | - | - | - | 5.8 | - | 0.2 | - | 0.2 | - | - | 0.2 | 14.6 | 3.8 | 0.4 | - | - | - | - | - | - | |
| Whiteman Park | - | - | - | - | - | - | - | - | - | - | - | - | - | 12.4 | - | - | - | - | - | - | 0.8 | 31.4 | 1.6 | ||||||||
|
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, generally published on the first working day of each month, lists the main features of the weather in Perth using the most timely and accurate information available on the date of publication; it will generally not be updated. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.
This statement has been prepared based on information available at 9 am on Monday 3 July 2017. 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.
Observations for “Perth Metro” are taken from the current site at
Mount Lawley (Bureau number 009225).
Comparisons are made against combined data from the current site
(which opened in early 1993) and the previous site at
Perth Regional Office (009034),
which ran from 1876 to early 1992.
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.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
