Thursday, 1 September 2016 - Monthly Climate Summary for Perth - Product code IDCKGC11L0
Perth in August 2016: Cool days and nights; above average rain days
Most sites in Perth recorded near average rainfall in August 2016, though an above average number of rain days was observed. Both mean maximum and mean minimum temperatures were below average.
Mostly near average rainfall
- Monthly rainfall totals across Perth exceeded 110 mm and reached 220 mm in the hills
- It was the wettest August for three years for most sites, including Perth Metro
- Nineteen or twenty rain days were recorded for most sites, with four days being the longest break between rainfall events
- Moderate to heavy rainfall occurred on the 7th-8th, 17th-18th, and 27th-28th
Cooler days and nights
- Both mean maximum and minimum temperatures were generally close to 1 °C below average
- Bickley broke its record for the lowest mean maximum temperature in August, while Perth Airport had its coldest August for 24 years, and Perth Metro recorded its lowest August mean maximum temperature in 12 years
- Perth Metro recorded its lowest mean minimum temperature for 6 years, while Rottnest Island equalled its lowest mean minimum temperature in 26 years of record at the current observation site
- Many sites recorded two or three mild days with a maximum of 20 °C or higher during August, the least number of such days for 11 years, since August 2004
- The coldest mornings were on the 1st and 24th, and Gosnells City recorded its equal lowest August temperature on record on the 1st
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Extremes Records Summaries Daily observations Important notes the top
| Extremes in August 2016 | |
|---|---|
| Hottest day | 22.9 °C at Pearce RAAF on the 14th |
| Warmest days on average | 17.9 °C at Gosnells City |
| Coolest days on average | 14.4 °C at Bickley |
| Coldest day | 10.7 °C at Bickley on the 8th |
| Coldest night |
-0.5 °C at Karnet on the 1st -0.5 °C at Karnet on the 24th |
| Coolest nights on average | 5.2 °C at Karnet |
| Warmest nights on average |
11.4 °C at Rottnest Island 9.4 °C at Swanbourne |
| Warmest night |
14.5 °C at Rottnest Island on the 17th 14.0 °C at Swanbourne on the 17th |
| Warmest on average overall |
14.2 °C at Rottnest Island 13.4 °C at Swanbourne |
| Coolest on average overall | 10.1 °C at Karnet |
| Wettest overall |
228.0 mm at Jarrahdale |
| Driest overall | 116.0 mm at Garden Island HSF |
| Wettest day | 58.0 mm at Jarrahdale on the 27th |
| Strongest wind gust |
94 km/h at Rottnest Island on the 17th 94 km/h at Swanbourne on the 17th |
xtremes Records Summaries Daily observations Important notes the top
| Highest August total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (mm) |
Most recent higher |
Average for August |
|||
| Rottnest Island | 125.4 | 126.2 | in 1986* | 86.1 | |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported.
| Record lowest August mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for August |
||
| Bickley | 14.4 | 14.7 | in 2004 | 22 | 16.1 |
| Swanbourne | 17.4 | = 17.4 | in 2004 | 22 | 19.0 |
| Lowest August mean daily maximum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent lower |
Average for August |
|||
| Perth Airport | 17.5 | 17.4 | in 1992 | 18.6 | |
| Record lowest August temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for August |
|||
| Gosnells City | 2.2 | on the 1st | = 2.2 | on the 21st in 2000 | 24 | 9.0 |
| Record lowest August mean daily minimum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for August |
||
| Rottnest Island | 11.4 | = 11.4 | in 1992 | 26 | 12.5 |
| Record lowest August mean temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for August |
||
| Bickley | 10.4 | 10.6 | in 2004 | 22 | 11.9 |
| Lowest August mean temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent lower |
Average for August |
|||
| Perth Airport | 12.5 | 11.8 | in 1986 | 13.3 | |
| Rottnest Island | 14.2 | 14.1 | in 1992 | 15.2 | |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported.
Extremes Records Summaries Daily observations Important notes the top
| Summary statistics for August 2016 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for August 2016 |
Diff from average |
Highest for August 2016 |
Mean for August 2016 |
Diff from average |
Lowest for August 2016 |
Total for August 2016 |
Average for August |
Rank of August 2016 |
Fraction of August average |
|||
| Bickley | 14.4 | -1.7 | 19.8 | 14th | 6.4 | -1.3 | 1.7 | 24th | 220.0 | 172.5 | high | 128% |
| Garden Island HSF | 16.8 | -1.5 | 19.7 | 26th | 10.3 | -1.0 | 7.1 | 24th | 116.0 | 92.4 | high | 126% |
| Gosnells City | 17.9 | -1.6 | 21.9 | 14th | 2.2 | 1st | 144.9 | 126.1 | average | 115% | ||
| Jandakot Aero | 17.4 | -1.3 | 20.9 | 26th | 7.0 | -0.1 | 0.2 | 1st | 141.0 | 126.5 | average | 111% |
| Karnet | 15.1 | -0.9 | 20.0 | 13th | 5.2 | -1.1 | -0.5 | 1st | 205.1 | 186.0 | average | 110% |
| Medina Research Centre | 17.7 | -1.2 | 21.4 | 14th | 7.3 | -0.9 | 0.9 | 1st | 143.0 | 113.9 | high | 126% |
| Pearce RAAF | 17.5 | -0.9 | 22.9 | 14th | 7.5 | -0.7 | 1.8 | 1st | 134.2 | 104.5 | high | 128% |
| Perth Airport | 17.5 | -1.1 | 22.3 | 14th | 7.5 | -0.6 | 1.1 | 1st | 120.2 | 117.6 | average | 102% |
| Perth Metro | 17.7 | -1.4 | 21.9 | 14th | 7.9 | -0.4 | 1.6 | 1st | 123.2 | 133.0 | average | 93% |
| Rottnest Island | 17.0 | -1.0 | 19.1 | 26th | 11.4 | -1.1 | 8.9 | 24th | 125.4 | 86.1 | v high | 146% |
| Swanbourne | 17.4 | -1.6 | 21.2 | 26th | 9.4 | -0.7 | 4.0 | 1st | 139.0 | 116.2 | high | 120% |
|
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 Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for August 2016 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 12.8 | 14.5 | 14.8 | 12.1 | 13.3 | 15.9 | 14.2 | 10.7 | 12.2 | 14.8 | 16.0 | 14.9 | 17.1 | 19.8 | 16.1 | 16.4 | 12.8 | 11.7 | 12.9 | 15.5 | 15.0 | 13.1 | 13.6 | 13.7 | 15.9 | 18.6 | 13.0 | 12.7 | 14.8 | 14.4 | 14.4 |
| Garden Island HSF | 15.8 | 17.1 | 17.0 | 15.2 | 15.9 | 17.6 | 16.8 | 14.6 | 15.9 | 17.3 | 18.7 | 16.0 | 17.3 | 18.0 | 18.4 | 18.9 | 17.8 | 14.6 | 16.1 | 16.8 | 17.4 | 14.5 | 16.2 | 16.9 | 19.0 | 19.7 | 16.7 | 14.9 | 15.2 | 17.6 | 15.6 |
| Gosnells City | 16.8 | 17.8 | 17.9 | 16.1 | 17.0 | 18.3 | 18.8 | 15.2 | 16.5 | 18.8 | 19.3 | 17.9 | 19.6 | 21.9 | 19.8 | 20.5 | 15.1 | 16.4 | 17.8 | 18.9 | 16.7 | 17.5 | 17.2 | 19.4 | 21.0 | 15.5 | 15.7 | 17.4 | 18.2 | 17.7 | |
| Jandakot Aero | 16.3 | 17.4 | 17.8 | 15.5 | 16.5 | 17.8 | 17.2 | 14.6 | 16.4 | 17.8 | 18.9 | 17.1 | 19.4 | 20.8 | 19.6 | 19.4 | 15.9 | 15.4 | 15.9 | 18.1 | 17.9 | 15.9 | 16.6 | 16.5 | 19.0 | 20.9 | 17.2 | 16.0 | 16.9 | 17.5 | 17.0 |
| Karnet | 13.7 | 15.5 | 15.0 | 12.8 | 14.6 | 16.4 | 14.0 | 12.0 | 14.5 | 15.1 | 16.2 | 20.0 | 18.7 | 15.6 | 17.0 | 13.8 | 11.8 | 15.6 | 15.5 | 15.5 | 13.1 | 13.5 | 14.9 | 16.5 | 18.9 | 14.0 | 13.0 | 14.5 | 15.5 | ||
| Medina Research Centre | 17.1 | 18.4 | 17.7 | 15.3 | 18.0 | 14.3 | 16.2 | 18.8 | 19.6 | 17.5 | 20.0 | 21.4 | 18.8 | 20.0 | 17.0 | 14.6 | 16.0 | 17.0 | 18.1 | 15.8 | 17.0 | 17.4 | 19.2 | 21.0 | 17.0 | 16.3 | 17.0 | 17.9 | |||
| Pearce RAAF | 15.5 | 17.5 | 17.9 | 15.8 | 16.2 | 18.9 | 17.5 | 14.8 | 16.7 | 17.3 | 18.5 | 17.2 | 18.7 | 22.9 | 20.0 | 19.3 | 16.6 | 15.4 | 16.2 | 18.0 | 18.3 | 16.1 | 16.1 | 16.2 | 18.8 | 20.4 | 17.2 | 16.5 | 17.3 | 17.6 | 17.1 |
| Perth Airport | 15.7 | 17.3 | 17.2 | 15.5 | 16.5 | 18.2 | 17.4 | 14.4 | 16.7 | 17.7 | 19.3 | 17.7 | 19.1 | 22.3 | 18.9 | 20.0 | 15.6 | 15.3 | 17.0 | 17.8 | 18.0 | 16.5 | 16.7 | 16.7 | 18.8 | 20.7 | 16.8 | 16.1 | 17.7 | 17.9 | 17.7 |
| Perth Metro | 15.8 | 17.3 | 17.8 | 15.9 | 16.7 | 17.7 | 17.7 | 15.1 | 17.0 | 18.4 | 19.3 | 17.9 | 19.7 | 21.9 | 19.6 | 19.9 | 16.2 | 15.4 | 15.9 | 17.9 | 18.5 | 16.3 | 16.8 | 17.1 | 18.7 | 21.5 | 17.0 | 16.5 | 17.6 | 18.2 | 17.2 |
| Rottnest Island | 15.3 | 17.3 | 18.2 | 15.5 | 15.5 | 17.6 | 17.1 | 15.2 | 17.1 | 18.0 | 18.9 | 16.3 | 18.5 | 17.7 | 18.7 | 18.7 | 17.5 | 15.8 | 17.2 | 17.9 | 18.0 | 14.7 | 14.9 | 15.3 | 18.4 | 19.1 | 16.7 | 15.8 | 15.8 | 18.1 | 16.0 |
| Swanbourne | 16.2 | 17.9 | 18.3 | 15.6 | 16.5 | 18.0 | 17.9 | 14.9 | 17.4 | 17.8 | 19.9 | 17.2 | 18.4 | 19.6 | 19.5 | 19.4 | 17.1 | 14.8 | 16.0 | 17.6 | 18.9 | 15.4 | 16.9 | 16.8 | 18.9 | 21.2 | 17.0 | 15.7 | 16.7 | 17.4 | 16.0 |
|
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 August 2016 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2.3 | 2.6 | 5.9 | 9.5 | 7.9 | 8.7 | 7.1 | 7.4 | 5.9 | 6.8 | 8.9 | 5.0 | 6.0 | 5.3 | 9.8 | 6.9 | 10.2 | 4.7 | 5.5 | 7.6 | 6.1 | 4.7 | 4.3 | 1.7 | 3.7 | 7.6 | 8.5 | 7.4 | 8.3 | 4.7 | 8.3 |
| Garden Island HSF | 7.6 | 7.6 | 9.8 | 13.1 | 11.1 | 8.4 | 11.8 | 11.2 | 11.0 | 10.5 | 11.7 | 7.7 | 8.8 | 7.8 | 10.4 | 10.6 | 13.3 | 9.5 | 10.3 | 11.9 | 11.6 | 10.3 | 8.3 | 7.1 | 9.3 | 12.1 | 12.4 | 12.0 | 12.4 | 8.9 | 12.3 |
| Gosnells City | 2.2 | 5.5 | 7.9 | 12.6 | 7.8 | 10.6 | 8.6 | 9.5 | 6.8 | 8.4 | 11.5 | 5.9 | 6.6 | 4.5 | 7.4 | 8.2 | 6.6 | 3.0 | 3.4 | 6.0 | 6.5 | 9.0 | 12.5 | 8.5 | |||||||
| Jandakot Aero | 0.2 | 2.6 | 3.1 | 12.1 | 5.6 | 8.2 | 10.4 | 9.8 | 9.6 | 7.7 | 11.1 | 3.7 | 5.3 | 3.2 | 6.8 | 4.5 | 12.6 | 4.2 | 8.5 | 9.2 | 6.1 | 3.5 | 2.5 | 4.6 | 6.1 | 12.1 | 10.9 | 10.8 | 9.0 | 3.2 | 11.2 |
| Karnet | -0.5 | 1.9 | 4.5 | 8.4 | 7.3 | 6.5 | 7.5 | 7.0 | 4.5 | 8.5 | 1.8 | 6.0 | 2.9 | 6.8 | 4.1 | 8.5 | 2.4 | 3.0 | 7.0 | 3.0 | 5.3 | 0.8 | -0.5 | 4.7 | 9.1 | 9.0 | 8.4 | 8.5 | 1.9 | 8.5 | |
| Medina Research Centre | 0.9 | 2.2 | 4.5 | 11.7 | 7.1 | 7.7 | 10.1 | 8.8 | 12.0 | 4.6 | 7.4 | 3.5 | 7.9 | 6.0 | 12.2 | 6.7 | 8.8 | 7.0 | 6.2 | 2.9 | 3.8 | 5.4 | 11.7 | 11.0 | 11.0 | 8.4 | 3.7 | 11.4 | |||
| Pearce RAAF | 1.8 | 2.6 | 6.5 | 12.2 | 6.1 | 10.6 | 10.5 | 9.6 | 8.0 | 7.5 | 9.8 | 5.7 | 5.3 | 5.0 | 7.6 | 7.7 | 12.0 | 6.0 | 8.9 | 7.8 | 7.9 | 4.8 | 2.2 | 3.4 | 8.0 | 11.4 | 11.0 | 10.3 | 9.3 | 4.2 | 9.7 |
| Perth Airport | 1.1 | 4.8 | 7.1 | 12.1 | 7.8 | 9.6 | 9.5 | 10.1 | 6.0 | 8.8 | 11.1 | 4.9 | 6.3 | 6.2 | 7.5 | 7.1 | 11.1 | 4.2 | 8.1 | 8.8 | 6.6 | 4.5 | 1.8 | 5.7 | 4.9 | 11.6 | 10.9 | 10.2 | 10.5 | 3.5 | 10.1 |
| Perth Metro | 1.6 | 2.3 | 4.6 | 11.8 | 7.1 | 9.2 | 10.3 | 10.3 | 10.5 | 8.6 | 11.5 | 4.9 | 6.4 | 4.6 | 8.9 | 7.4 | 12.1 | 5.5 | 9.5 | 9.1 | 7.3 | 7.5 | 3.3 | 3.8 | 6.2 | 12.0 | 11.2 | 10.9 | 11.1 | 4.5 | 10.9 |
| Rottnest Island | 9.2 | 9.7 | 11.7 | 13.9 | 11.9 | 12.1 | 10.4 | 10.1 | 10.3 | 10.9 | 12.9 | 11.2 | 12.6 | 11.9 | 13.6 | 12.7 | 14.5 | 10.1 | 11.1 | 11.9 | 12.1 | 9.3 | 9.2 | 8.9 | 10.0 | 12.0 | 12.2 | 10.4 | 12.5 | 11.2 | 12.9 |
| Swanbourne | 4.0 | 4.7 | 8.1 | 12.5 | 8.9 | 10.4 | 11.3 | 10.5 | 10.5 | 9.1 | 12.2 | 7.6 | 8.5 | 7.5 | 12.9 | 9.1 | 14.0 | 8.0 | 9.6 | 11.4 | 9.4 | 8.5 | 5.9 | 4.7 | 7.4 | 11.9 | 11.9 | 11.2 | 10.7 | 6.9 | 11.4 |
|
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 |
||||||||
| Daily rainfall for August 2016 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2.0 | - | - | 5.2 | 6.4 | - | 13.4 | 8.6 | 8.0 | 8.4 | 0.6 | 4.6 | - | - | - | 6.6 | 3.8 | 18.0 | 1.2 | 8.8 | 0.8 | 10.6 | - | - | - | - | 36.2 | 7.0 | - | - | 17.0 | |
| Bickley | 2.2 | 0.2 | - | 5.2 | 7.0 | 0.2 | 11.6 | 34.6 | 17.0 | 9.4 | 0.4 | 6.2 | - | - | - | 6.2 | 2.6 | 32.0 | 0.2 | 10.6 | 0.8 | 5.4 | - | - | - | - | 50.8 | 10.2 | 0.4 | - | 6.8 | |
| Bungendore | 1.8 | - | - | 6.4 | 4.6 | - | 8.6 | 20.6 | 9.0 | 7.6 | 1.8 | 10.0 | - | 0.2 | - | 4.4 | 1.6 | 26.6 | - | 9.8 | 0.2 | 14.8 | 0.2 | - | - | - | 51.0 | 10.4 | 2.2 | 0.2 | 5.0 | |
| Chidlow | 14.8 | - | - | 2.4 | 0.6 | 0.4 | → | 35.8 | 9.2 | 2.0 | - | 3.6 | - | - | - | 4.0 | 1.2 | 30.8 | - | 3.4 | → | 5.2 | - | - | - | - | 29.2 | |||||
| Garden Island HSF | 1.2 | - | - | 5.0 | 2.2 | - | 12.4 | 7.2 | 5.2 | 7.0 | 0.4 | 5.4 | - | - | - | 1.2 | 4.2 | 8.8 | - | 8.4 | - | 5.4 | - | - | - | - | 20.4 | 5.8 | - | - | 15.8 | |
| Gidgegannup | 3.8 | - | - | 2.6 | 0.4 | - | 18.2 | 18.2 | 11.2 | 4.4 | - | 3.2 | 0.2 | - | - | 10.8 | 0.2 | 26.8 | - | 3.2 | 1.0 | 4.6 | - | - | - | - | 33.6 | 6.2 | 0.2 | 0.2 | 3.4 | |
| Gosnells City | 1.7 | - | - | 4.2 | 1.0 | - | 13.2 | 15.0 | 5.0 | 4.8 | 0.8 | 7.8 | - | - | - | 4.5 | → | 18.6 | 0.3 | 9.1 | 3.6 | 7.5 | - | - | - | → | 35.0 | 6.8 | 2.0 | - | 4.0 | |
| Jandakot Aero | 1.4 | - | - | 4.4 | 4.0 | - | 7.6 | 16.0 | 5.0 | 5.4 | 1.4 | 3.0 | - | - | - | 3.8 | 2.0 | 17.4 | 0.2 | 10.2 | 3.8 | 6.8 | - | - | - | - | 33.6 | 8.0 | - | - | 7.0 | |
| Jarrahdale | 3.4 | 1.2 | - | 8.0 | 4.6 | 0.4 | 17.6 | 20.6 | 10.6 | 9.8 | 0.8 | 7.6 | 0.2 | - | 0.2 | 11.8 | 2.4 | 28.4 | 0.2 | 9.0 | 0.4 | 9.4 | 0.2 | 0.2 | 0.2 | - | 58.0 | 9.0 | 0.8 | 0.2 | 12.8 | |
| Karnet | 2.2 | - | - | 6.4 | 4.0 | 1.0 | 22.2 | 20.6 | → | 11.8 | 1.4 | 7.8 | - | - | - | 5.8 | 6.0 | 30.2 | 0.2 | - | → | 6.2 | - | - | - | - | 53.0 | 11.6 | 2.7 | - | 12.0 | |
| Karragullen North | 3.8 | - | - | 6.0 | 3.8 | - | 14.0 | 29.3 | 10.2 | 7.4 | 1.4 | 9.0 | - | - | - | 5.4 | 2.8 | 28.4 | 0.1 | 9.2 | 1.2 | 7.1 | - | - | - | - | 42.8 | 10.2 | 0.8 | - | 4.4 | |
| Maida Vale | 1.2 | - | - | 5.2 | 3.2 | - | 8.0 | 13.2 | 9.4 | 5.0 | 1.0 | 7.2 | - | - | - | 4.0 | 2.0 | 20.8 | 0.4 | 8.2 | 1.8 | 4.0 | 0.2 | - | - | - | 41.2 | 6.0 | 1.0 | - | 6.0 | |
| Medina Research Centre | 0.8 | - | - | 6.4 | 2.4 | → | → | 19.4 | 6.8 | 5.8 | 0.6 | 4.4 | - | - | 0.6 | 4.4 | 6.6 | 14.6 | 0.2 | 10.2 | 0.4 | 7.6 | 0.1 | - | - | - | 27.0 | 5.6 | 0.1 | - | 19.0 | |
| Midland | 8.2 | - | - | 3.4 | - | → | → | 32.2 | 6.8 | 3.6 | - | 4.8 | - | - | - | 9.2 | 3.2 | 24.2 | - | → | → | 8.2 | - | - | - | - | → | → | 47.1 | - | 6.4 | |
| Mount Helena | 3.4 | 2.8 | 0.6 | 0.6 | 15.4 | 20.0 | 12.0 | 2.8 | 3.0 | 7.0 | 1.4 | 33.0 | 7.8 | 1.0 | 3.6 | 34.0 | 7.8 | 6.2 | ||||||||||||||
| Mundaring | 3.6 | - | - | 4.4 | 1.6 | - | 17.4 | 14.4 | 12.8 | 4.4 | - | 4.2 | - | - | - | 9.6 | 3.2 | 29.0 | - | 9.2 | 1.6 | - | - | - | - | - | 40.6 | 10.0 | - | - | 5.8 | |
| Pearce RAAF | 4.6 | - | 0.2 | 2.0 | - | - | 13.2 | 11.8 | 5.4 | 7.4 | - | 9.6 | - | - | - | 14.6 | 0.2 | 20.0 | - | 2.2 | 1.4 | 3.4 | 0.2 | - | - | - | 25.2 | 7.0 | - | - | 5.8 | |
| Perth Airport | 0.8 | - | - | 3.2 | 3.4 | - | 7.4 | 6.8 | 7.0 | 2.6 | 0.4 | 4.4 | - | - | - | 5.8 | 1.8 | 20.0 | 0.2 | 9.0 | 0.4 | 2.6 | - | - | - | - | 30.8 | 5.2 | - | - | 8.4 | |
| Perth Metro | 0.8 | - | - | 3.0 | 3.0 | - | 5.0 | 12.2 | 5.2 | 4.8 | 0.4 | 5.4 | - | - | 0.2 | 4.0 | 1.6 | 17.4 | - | 2.8 | 1.6 | 7.4 | - | - | - | - | 31.0 | 7.6 | - | - | 9.8 | |
| Pickering Brook | 3.6 | 4.4 | 6.8 | 13.4 | 10.2 | 5.8 | 1.0 | 5.6 | 5.2 | 3.4 | 30.0 | 9.4 | 1.2 | 10.2 | 47.8 | 9.6 | 5.0 | |||||||||||||||
| Roleystone | 4.2 | - | - | 6.5 | 3.6 | - | 12.6 | 19.1 | 8.4 | 5.9 | 1.2 | 5.8 | - | - | - | 3.8 | 2.2 | 30.8 | - | 10.6 | 1.4 | 8.1 | - | - | - | - | 44.6 | 12.1 | 0.9 | - | 4.6 | |
| Rottnest Island | 0.8 | - | - | 4.6 | 2.8 | - | 12.4 | 5.4 | 2.0 | 4.6 | 1.8 | 6.8 | - | - | - | 4.0 | 11.0 | 11.0 | - | 2.4 | - | 5.0 | - | - | - | - | 21.2 | 7.6 | - | - | 22.0 | |
| Serpentine | 2.2 | - | - | 6.0 | 3.0 | - | 14.6 | 11.2 | 4.6 | 10.4 | 0.2 | 8.4 | - | - | - | 6.2 | 3.8 | 21.0 | 0.2 | 9.6 | - | 10.4 | - | - | - | - | 39.8 | 4.4 | 1.2 | - | 15.0 | |
| Swanbourne | 1.2 | - | - | 4.8 | 3.6 | - | 5.0 | 8.6 | 5.4 | 5.8 | 2.8 | 10.8 | - | - | - | 4.6 | 11.2 | 12.8 | - | 1.4 | 3.4 | 7.6 | - | - | - | - | 33.6 | 4.2 | - | - | 12.2 | |
| Wanneroo | 8.2 | - | - | 2.6 | 2.4 | → | → | 22.6 | 2.6 | 6.6 | 0.6 | 8.6 | → | → | 0.2 | 10.0 | 1.2 | 17.4 | 0.1 | → | → | 16.8 | - | - | - | - | → | → | 39.0 | - | 9.0 | |
| Werribee | 1.2 | 0.2 | - | 4.2 | 1.4 | 0.2 | 19.0 | 15.4 | 6.6 | 2.6 | - | 2.8 | - | - | 0.2 | 13.2 | 0.2 | 21.6 | 0.2 | 2.4 | 0.4 | 3.4 | - | 0.2 | - | - | 28.2 | 5.6 | - | 0.2 | 1.6 | |
| Whiteman Park | 1.4 | - | - | 3.6 | 4.2 | 0.2 | 12.6 | 14.8 | 6.8 | 2.5 | - | - | 6.8 | - | - | 6.2 | 1.0 | 26.2 | - | 5.6 | 4.6 | 8.0 | - | - | - | - | 41.0 | 6.6 | ||||
|
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 Records Summaries Daily observations Important notes the top
Notes
The Monthly climate summary 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. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.
A climate summary is generally published on the first working day of each month.
This statement has been prepared based on information available at 10 am on Thursday 1 September 2016. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
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.
The ACORN-SAT dataset is used for temperature area averages.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
