Thursday, 1 August 2019 - Monthly Climate Summary for Greater Perth - Product code IDCKGC11L0
Greater Perth in July 2019: mild daytime temperatures with a wet start
Rainfall in July 2019 was below average for most sites but near average along the coast and in offshore islands in the Greater Perth region. Daytime and night-time temperatures were above average across Perth.
Below average rain for most sites away from the coast
- Rainfall was below average for most sites, but near average along the coast and in offshore islands
- Monthly rainfall totals were in the 70-140 mm range, and there were 10-12 wet days (daily rainfall of 1 mm or more) for most sites
- Perth Metro recorded 108.6 mm in July, which was below average, and driest July since 2015 (102.4 mm)
- The wettest day was on the 5th with 30-60 mm rainfall across Perth from a cold front and associated cloudband; Swanbourne had the highest daily rainfall of the month with 64.6 mm
- Perth Metro and Swanbourne recorded daily rainfall of 44.2 mm and 64.6 mm respectively on the 5th, which was their highest July daily rainfall for 18 years, since 88.8 mm and 75.0 mm were recorded respectively on 30 July 2001
- Perth Metro recorded 396.2 mm rainfall for year to date (January-July), which was below average (449.2 mm) and driest year to date since 2012 (336.2 mm)
Above average daytime and night-time temperatures
- Mean maximum and minimum temperatures were above average across Perth
- For Perth Airport and Pearce RAAF, a mean maximum temperature of 19.3 °C was their warmest July since 2007, when a mean maximum of 19.7 °C (its warmest on record) and 19.3 °C was recorded respectively
- Perth Metro recorded a mean maximum temperature of 19.3 °C, which was 0.9 °C above average and warmest July since 2012 (19.4 °C)
- The coldest day was on the 5th across Perth; Bickley recorded the lowest maximum temperature of the month with 10.4 °C
- Perth Metro recorded a daily maximum temperature of 13.5 °C on the 5th, which was its lowest maximum for any month for eight years (13.0 °C was recorded on 11 July 2011)
- Perth Metro recorded a mean minimum temperature of 8.4 °C, which was 0.6 °C above average, though cooler than July in 2017 (9.5 °C) and 2018 (10.2 °C)
- Perth Metro's year to date mean maximum temperature was 25.5 °C, equal the average though cooler than January-July 2018 (25.6 °C)
- Perth Metro's year to date mean minimum temperature was 13.0 °C, which was 0.4 °C below average and coolest year to date since 2010 (13.0 °C)
Perth Metro
- Total rainfall for Perth Metro was 108.6 mm, which is 75% of the long-term average of 144.5 mm
- The warmest day was 23.2 °C on the 30th, and the coolest day was on the 5th when the temperature reached 13.5 °C
- The coldest morning was 3.3 °C on the 17th, and the warmest morning was on the 22nd when the minimum temperature was 12.5 °C
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 July 2019 | |
|---|---|
| Hottest day |
23.2 °C at Perth Airport on the 30th 23.2 °C at Perth Metro on the 30th |
| Warmest days on average |
19.3 °C at Pearce RAAF 19.3 °C at Perth Airport 19.3 °C at Perth Metro |
| Coolest days on average | 15.8 °C at Bickley |
| Coldest day | 10.4 °C at Bickley on the 5th |
| Coldest night | 1.4 °C at Jandakot Aero on the 17th |
| Coolest nights on average | 6.6 °C at Karnet |
| Warmest nights on average | 13.1 °C at Rottnest Island |
| Warmest night | 15.2 °C at Rottnest Island on the 4th |
| Warmest on average overall | 15.7 °C at Rottnest Island |
| Coolest on average overall | 11.4 °C at Karnet |
| Wettest overall | 142.6 mm at Mount Solus |
| Driest overall | 74.2 mm at Werribee |
| Wettest day | 64.6 mm at Swanbourne on the 5th |
| Strongest wind gust | 98 km/h at Rottnest Island on the 19th |
Extremes Maps Records Summaries Daily observations Important notes the top
Extremes Maps Records Summaries Daily observations Important notes the top
| Summary statistics for July 2019 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for July 2019 |
Diff from average |
Highest for July 2019 |
Mean for July 2019 |
Diff from average |
Lowest for July 2019 |
Total for July 2019 |
Average for July |
Rank of July 2019 |
Fraction of July average |
|||
| Bickley | 15.8 | +0.7 | 19.6 | 30th | 7.8 | +0.6 | 4.7 | 14th | 138.4 | 216.8 | low | 64% |
| Garden Island HSF | 18.3 | +0.5 | 20.9 | 3rd | 11.4 | +0.2 | 8.4 | 16th | 132.2 | 116.4 | high | 114% |
| Jandakot Aero | 18.9 | +0.9 | 22.6 | 31st | 7.5 | +0.6 | 1.4 | 17th | 132.8 | 173.1 | low | 77% |
| Karnet | 16.2 | +0.7 | 20.1 | 30th | 6.6 | +0.3 | 3.3 | 17th | 217.1 | |||
| Mandurah | 18.1 | +0.6 | 20.4 | 3rd | 10.9 | +0.2 | 8.0 | 14th | 111.8 | 116.9 | average | 96% |
| Millendon (Swan Valley) | 19.2 | 22.8 | 30th | 7.8 | 2.8 | 17th | 94.0 | |||||
| Pearce RAAF | 19.3 | +1.4 | 22.7 | 30th | 8.9 | +0.5 | 4.6 | 16th | 91.4 | 133.8 | low | 68% |
| Perth Airport | 19.3 | +1.4 | 23.2 | 30th | 8.4 | +0.4 | 4.9 | 12th | 99.6 | 155.3 | low | 64% |
| Perth Metro | 19.3 | +0.9 | 23.2 | 30th | 8.4 | +0.6 | 3.3 | 17th | 108.6 | 144.5 | low | 75% |
| Rottnest Island | 18.3 | +0.5 | 21.4 | 3rd | 13.1 | +0.7 | 9.7 | 5th | 123.0 | 113.0 | average | 109% |
| Swanbourne | 18.7 | +0.3 | 22.2 | 3rd | 10.4 | +0.7 | 7.2 | 17th | 137.8 | 149.8 | average | 92% |
Extremes Maps Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for July 2019 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 16.7 | 16.7 | 17.8 | 15.9 | 10.4 | 13.9 | 15.5 | 17.2 | 14.1 | 15.3 | 15.6 | 15.5 | 15.8 | 15.3 | 16.7 | 18.3 | 18.9 | 16.2 | 15.0 | 13.5 | 15.3 | 13.9 | 15.5 | 17.6 | 14.2 | 12.7 | 17.6 | 16.5 | 13.1 | 19.6 | 19.4 |
| Garden Island HSF | 19.0 | 19.1 | 20.9 | 19.1 | 13.6 | 17.3 | 18.2 | 19.7 | 17.9 | 17.8 | 17.5 | 17.1 | 18.7 | 19.0 | 19.5 | 18.9 | 20.2 | 19.3 | 20.0 | 18.0 | 18.8 | 15.7 | 18.4 | 19.6 | 17.4 | 16.2 | 17.3 | 16.5 | 18.5 | 18.5 | 19.7 |
| Gosnells City | 22.0 | 20.3 | 14.5 | 17.6 | 20.5 | 18.0 | 18.1 | 18.2 | 19.6 | 22.4 | 16.0 | 19.1 | 21.0 | 16.5 | 20.6 | 19.5 | |||||||||||||||
| Jandakot Aero | 19.1 | 19.9 | 21.5 | 19.3 | 12.9 | 17.0 | 18.7 | 19.9 | 18.0 | 17.9 | 18.5 | 18.1 | 18.8 | 18.9 | 20.1 | 20.7 | 21.7 | 19.8 | 19.9 | 17.1 | 19.7 | 17.0 | 18.5 | 20.1 | 16.8 | 16.1 | 20.2 | 18.5 | 17.0 | 22.1 | 22.6 |
| Karnet | 16.6 | 17.8 | 19.1 | 11.8 | 15.0 | 16.3 | 17.8 | 15.0 | 15.0 | 15.8 | 15.8 | 16.0 | 16.5 | 18.0 | 18.5 | 19.1 | 18.3 | 16.0 | 14.3 | 16.5 | 13.5 | 15.5 | 17.0 | 13.5 | 13.6 | 16.3 | 15.5 | 15.1 | 20.1 | ||
| Mandurah | 18.5 | 18.6 | 20.4 | 18.6 | 14.3 | 17.6 | 17.0 | 18.5 | 17.8 | 18.1 | 18.0 | 16.2 | 19.1 | 18.9 | 19.5 | 18.6 | 19.6 | 18.8 | 19.2 | 17.9 | 18.7 | 15.9 | 18.7 | 17.3 | 16.4 | 16.3 | 18.3 | 17.2 | 19.3 | 18.3 | 18.9 |
| Millendon (Swan Valley) | 19.4 | 20.6 | 21.6 | 19.3 | 13.8 | 18.0 | 18.2 | 20.3 | 17.6 | 18.2 | 19.1 | 19.0 | 18.6 | 18.9 | 19.7 | 22.2 | 22.0 | 20.6 | 19.4 | 17.4 | 19.1 | 17.1 | 19.1 | 20.6 | 17.8 | 16.1 | 20.1 | 19.4 | 17.6 | 22.8 | 21.7 |
| Pearce RAAF | 20.2 | 20.6 | 22.4 | 19.6 | 13.3 | 16.5 | 18.4 | 20.3 | 18.2 | 19.1 | 18.5 | 18.4 | 18.8 | 18.8 | 19.9 | 21.8 | 22.3 | 20.9 | 19.7 | 17.9 | 18.6 | 17.3 | 19.2 | 20.9 | 18.8 | 15.9 | 19.5 | 19.4 | 17.8 | 22.7 | 22.0 |
| Perth Airport | 19.2 | 20.9 | 21.8 | 19.2 | 13.5 | 16.8 | 19.1 | 20.1 | 18.2 | 18.6 | 19.0 | 18.8 | 19.1 | 19.0 | 19.9 | 21.8 | 22.7 | 19.8 | 19.6 | 17.6 | 19.1 | 17.2 | 18.8 | 21.2 | 18.2 | 16.3 | 20.6 | 19.4 | 16.7 | 23.2 | 22.7 |
| Perth Metro | 20.2 | 20.6 | 21.7 | 19.1 | 13.5 | 18.2 | 19.2 | 20.5 | 18.3 | 18.1 | 18.6 | 18.7 | 19.1 | 19.3 | 19.8 | 21.9 | 22.4 | 20.7 | 19.4 | 17.7 | 19.2 | 17.4 | 19.0 | 20.8 | 17.0 | 15.9 | 20.3 | 19.0 | 17.3 | 23.2 | 22.9 |
| Rottnest Island | 19.2 | 19.2 | 21.4 | 15.7 | 14.0 | 17.4 | 18.7 | 20.0 | 18.3 | 18.8 | 17.0 | 16.4 | 18.0 | 17.9 | 19.7 | 19.1 | 20.9 | 18.9 | 19.6 | 17.7 | 19.0 | 16.9 | 18.5 | 19.2 | 16.1 | 15.7 | 18.7 | 16.6 | 20.2 | 21.0 | |
| Swanbourne | 19.3 | 19.6 | 22.2 | 19.9 | 13.2 | 17.6 | 18.6 | 20.0 | 18.1 | 18.1 | 18.2 | 18.0 | 19.1 | 19.3 | 20.4 | 20.0 | 20.9 | 19.3 | 18.9 | 17.6 | 18.9 | 16.9 | 18.5 | 19.1 | 17.7 | 16.1 | 19.3 | 17.6 | 17.4 | 19.8 | 21.2 |
|
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 |
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| Daily minimum temperatures for July 2019 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 9.7 | 7.7 | 6.7 | 8.3 | 6.0 | 5.4 | 7.7 | 7.8 | 8.4 | 10.1 | 8.7 | 5.8 | 7.9 | 4.7 | 5.3 | 6.1 | 7.2 | 10.7 | 11.1 | 6.8 | 8.8 | 8.5 | 8.3 | 8.0 | 9.5 | 7.5 | 8.6 | 7.8 | 6.5 | 7.2 | 7.8 |
| Garden Island HSF | 14.0 | 10.7 | 9.9 | 14.4 | 9.9 | 9.0 | 12.3 | 10.4 | 13.3 | 14.8 | 11.4 | 9.1 | 10.6 | 9.7 | 10.7 | 8.4 | 9.3 | 13.2 | 13.7 | 11.6 | 14.0 | 14.0 | 11.6 | 10.5 | 12.9 | 11.5 | 12.0 | 11.0 | 9.6 | 9.9 | 10.2 |
| Gosnells City | 14.5 | 9.0 | 6.1 | 8.2 | 10.2 | 10.5 | 10.2 | 9.0 | 4.5 | 10.5 | 10.5 | 11.4 | 11.5 | 10.2 | 11.0 | ||||||||||||||||
| Jandakot Aero | 12.2 | 6.7 | 4.5 | 12.9 | 8.4 | 6.5 | 8.6 | 4.9 | 9.7 | 9.5 | 9.2 | 4.1 | 5.8 | 6.7 | 6.3 | 1.5 | 1.4 | 7.7 | 11.1 | 7.8 | 11.3 | 9.4 | 6.3 | 4.5 | 9.7 | 9.9 | 10.6 | 8.7 | 5.5 | 6.5 | 5.6 |
| Karnet | 8.0 | 5.0 | 5.9 | 9.8 | 3.4 | 7.0 | 5.1 | 6.8 | 8.7 | 7.0 | 4.4 | 6.1 | 6.1 | 6.7 | 4.6 | 3.3 | 7.8 | 7.9 | 6.0 | 8.3 | 8.1 | 5.9 | 5.3 | 8.3 | 7.5 | 8.6 | 7.4 | 6.1 | 6.9 | 7.0 | |
| Mandurah | 11.6 | 11.6 | 10.5 | 14.2 | 9.0 | 9.1 | 11.0 | 11.1 | 12.1 | 13.0 | 11.4 | 8.1 | 9.3 | 8.0 | 9.4 | 8.8 | 10.0 | 12.3 | 14.6 | 9.9 | 13.8 | 11.6 | 11.2 | 10.8 | 12.3 | 11.3 | 11.2 | 10.0 | 9.6 | 10.2 | 10.7 |
| Millendon (Swan Valley) | 12.1 | 5.6 | 6.1 | 14.2 | 8.5 | 5.3 | 8.2 | 3.9 | 7.0 | 8.1 | 9.1 | 5.1 | 8.1 | 7.2 | 8.6 | 3.7 | 2.8 | 6.2 | 8.6 | 7.0 | 10.8 | 10.7 | 5.9 | 6.3 | 9.6 | 10.8 | 10.9 | 8.4 | 8.3 | 8.0 | 7.6 |
| Pearce RAAF | 11.9 | 6.3 | 8.0 | 14.5 | 9.2 | 6.0 | 8.9 | 5.3 | 7.6 | 9.6 | 9.5 | 6.0 | 8.1 | 10.0 | 10.5 | 4.6 | 4.9 | 6.4 | 8.3 | 8.4 | 12.3 | 11.5 | 6.7 | 8.0 | 10.7 | 10.7 | 11.3 | 9.2 | 10.4 | 10.5 | 9.1 |
| Perth Airport | 12.1 | 5.8 | 7.2 | 13.1 | 8.4 | 5.1 | 9.0 | 6.3 | 8.2 | 8.7 | 9.0 | 4.9 | 6.7 | 7.5 | 9.1 | 7.6 | 5.4 | 7.8 | 10.7 | 7.6 | 10.7 | 10.8 | 5.9 | 6.7 | 10.1 | 10.7 | 11.4 | 9.6 | 8.9 | 8.1 | 6.6 |
| Perth Metro | 11.9 | 6.0 | 6.1 | 12.0 | 8.9 | 6.8 | 9.8 | 5.5 | 8.8 | 9.7 | 10.6 | 4.4 | 6.7 | 5.8 | 6.4 | 3.8 | 3.3 | 8.6 | 12.0 | 8.8 | 11.8 | 12.5 | 7.4 | 7.1 | 11.0 | 10.8 | 11.4 | 10.2 | 7.3 | 7.7 | 6.7 |
| Rottnest Island | 13.8 | 13.5 | 13.7 | 15.2 | 9.7 | 10.1 | 13.1 | 14.3 | 13.3 | 14.4 | 13.5 | 11.8 | 12.3 | 11.8 | 12.6 | 13.1 | 13.3 | 15.0 | 15.1 | 10.7 | 13.6 | 13.9 | 13.9 | 13.6 | 13.4 | 12.5 | 12.8 | 12.7 | 11.7 | 14.4 | |
| Swanbourne | 11.7 | 9.3 | 10.0 | 13.4 | 9.0 | 8.0 | 10.4 | 8.7 | 11.5 | 12.8 | 12.4 | 7.8 | 8.9 | 8.7 | 8.7 | 8.5 | 7.2 | 10.7 | 13.5 | 11.4 | 13.3 | 13.7 | 9.7 | 9.3 | 12.4 | 11.0 | 11.6 | 10.1 | 9.1 | 9.2 | 10.7 |
|
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 July 2019 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 25.0 | - | - | - | 53.4 | 7.0 | 3.8 | - | 0.6 | 0.4 | 1.0 | - | - | - | - | - | - | 1.4 | 10.0 | 17.0 | 1.0 | 3.2 | - | - | 0.2 | - | 4.4 | 0.4 | - | - | - | |
| Bickley | 9.0 | 0.2 | 0.2 | - | 51.6 | 3.8 | 1.8 | 0.2 | - | 1.2 | - | 0.4 | - | 0.2 | - | 0.2 | - | 0.6 | 6.0 | 38.8 | 5.8 | 9.4 | 0.2 | - | 1.2 | - | 5.8 | 1.2 | 0.2 | 0.4 | - | |
| Bungendore | 11.6 | 0.4 | 0.2 | - | 54.0 | 2.4 | 8.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | - | - | - | 0.2 | 1.4 | 15.4 | 24.4 | 3.0 | 7.4 | 0.2 | 0.2 | 0.2 | - | 2.4 | - | 0.2 | 0.2 | - | |
| Chidlow | 7.0 | - | - | - | 38.8 | 1.4 | → | 0.9 | 0.1 | - | - | - | - | - | - | - | - | - | 3.6 | 23.6 | → | 10.2 | - | 0.3 | 0.1 | - | 0.9 | |||||
| Garden Island HSF | 4.8 | - | - | - | 52.2 | 11.8 | 5.4 | 0.2 | 1.2 | 0.2 | 0.2 | 0.2 | - | - | - | - | - | 4.6 | 12.4 | 26.4 | 1.6 | 2.6 | - | - | 1.2 | - | 6.2 | 1.0 | - | - | - | |
| Gidgegannup | 11.0 | 0.2 | 0.4 | - | 42.8 | 1.8 | 1.2 | 0.2 | 0.2 | 0.2 | - | 0.2 | 0.2 | - | - | - | - | - | 5.2 | 25.2 | 9.2 | 11.8 | - | 0.2 | 0.2 | - | 0.6 | 0.2 | 0.2 | 0.2 | - | |
| Gosnells City | - | - | - | - | 55.7 | 9.6 | 1.2 | → | 0.2 | - | 0.1 | → | → | → | → | → | → | → | → | 29.0 | 2.6 | 2.9 | → | → | 0.6 | → | 4.4 | 0.2 | - | |||
| Huntly | 16.2 | 4.0 | 2.0 | - | 35.6 | 2.0 | 5.0 | 0.5 | 3.8 | 1.8 | 2.0 | 0.2 | - | - | - | - | - | 2.0 | 8.8 | 32.4 | 9.0 | 11.0 | 0.2 | - | 20.0 | - | - | - | - | 1.0 | - | |
| Jandakot Aero | 16.2 | - | - | - | 46.6 | 14.6 | 4.8 | - | 0.6 | 0.4 | 0.2 | - | - | - | - | - | - | 1.6 | 15.6 | 22.8 | 2.2 | 2.6 | - | - | 1.8 | - | 2.6 | - | - | 0.2 | - | |
| Jarrahdale | 18.8 | 0.2 | 0.2 | 0.4 | 42.6 | 1.4 | 2.2 | - | 0.2 | 0.8 | 0.2 | 0.2 | 0.4 | - | - | - | 0.4 | 6.0 | 11.4 | 27.6 | 5.2 | 10.4 | 0.2 | - | 0.8 | 0.2 | 1.2 | 0.2 | 0.4 | 0.2 | 0.2 | |
| Karnet | 10.6 | 1.2 | - | - | → | 0.5 | 3.2 | 0.6 | 0.5 | 5.0 | 0.6 | 0.3 | - | - | 0.3 | 0.2 | 0.2 | 2.6 | 8.6 | → | 23.8 | 10.6 | 0.4 | - | 0.8 | - | 1.9 | 0.4 | 0.3 | - | 0.3 | |
| Karragullen North | 8.8 | - | - | - | 44.8 | 4.4 | 6.2 | - | 0.4 | - | - | - | - | - | - | - | - | 2.0 | 8.6 | 29.6 | 8.0 | 6.8 | - | - | 1.2 | - | 3.0 | 0.8 | ||||
| Maida Vale | 4.2 | - | - | - | 44.8 | 6.4 | 2.0 | - | - | 1.4 | - | - | - | - | - | - | - | 4.0 | 4.2 | 21.0 | 4.6 | 4.6 | 0.2 | - | 2.4 | - | 7.4 | 0.2 | ||||
| Mandurah | 14.4 | - | - | - | 53.0 | 12.2 | 1.4 | 2.2 | 1.0 | 1.0 | 0.8 | 0.2 | - | - | - | - | - | 4.8 | 2.6 | 8.0 | 1.0 | 2.2 | - | 0.2 | 1.8 | - | 5.0 | - | - | - | - | |
| Midland | 12.0 | 1.0 | - | - | - | → | → | 55.0 | 0.5 | - | - | - | - | - | - | - | - | - | - | → | → | 27.5 | ||||||||||
| Millendon (Swan Valley) | 8.6 | - | - | - | 45.6 | 5.4 | 0.6 | - | 0.4 | 0.2 | - | - | - | - | - | - | - | 2.6 | 18.2 | 6.2 | 4.4 | 0.4 | - | 0.2 | - | 1.2 | - | - | - | - | ||
| Mount Solus | 14.0 | 0.2 | 0.4 | - | 37.2 | 0.8 | 3.0 | - | 0.2 | 1.4 | 3.0 | 0.4 | 0.4 | - | - | - | - | 3.2 | 11.0 | 42.4 | 7.2 | 11.8 | 0.4 | 0.4 | 0.6 | 0.2 | 3.6 | 0.2 | 0.2 | 0.4 | - | |
| Muchea | 4.6 | 0.2 | 0.2 | - | 44.0 | 7.8 | 1.6 | 0.2 | 1.0 | 0.4 | - | 0.2 | - | - | - | - | - | - | 3.0 | 10.2 | 6.2 | 2.6 | 0.2 | - | 0.6 | 0.2 | - | 0.2 | - | - | - | |
| Mundaring | 9.4 | - | 0.2 | - | 44.0 | 2.8 | 3.0 | 0.2 | - | 0.4 | - | - | - | - | - | - | - | 0.2 | 2.8 | 29.6 | 6.4 | 9.4 | - | - | 0.8 | - | 4.6 | 1.4 | ||||
| Pearce RAAF | 6.0 | 0.2 | - | - | 53.2 | 5.8 | 1.6 | 0.2 | 2.0 | - | - | - | - | - | - | - | 4.2 | 11.4 | 2.4 | 3.6 | - | 0.2 | - | - | 0.2 | 0.2 | 0.2 | - | - | |||
| Perth Airport | 5.8 | - | - | - | 41.0 | 5.2 | 2.8 | - | 0.6 | - | - | - | - | - | - | - | - | 0.4 | 1.8 | 22.4 | 4.0 | 4.8 | 0.2 | - | 1.0 | 0.2 | 9.2 | 0.2 | - | - | - | |
| Perth Metro | 9.4 | 0.2 | - | - | 44.2 | 11.2 | 1.6 | - | - | 0.2 | - | - | - | - | - | - | - | 0.8 | 5.0 | 13.2 | 5.8 | 3.6 | 0.2 | - | 2.6 | - | 10.4 | 0.2 | - | - | - | |
| Pinjarra South | 11.8 | - | - | 0.2 | 44.6 | 4.6 | 4.6 | - | 3.8 | 1.0 | 1.0 | - | - | - | - | - | - | 0.4 | 13.8 | 17.8 | 3.4 | 5.4 | - | - | 0.8 | - | 2.4 | - | - | - | - | |
| Roleystone | 9.0 | - | - | - | 50.0 | 7.0 | 7.4 | - | - | 1.0 | - | - | - | - | - | - | - | 1.4 | 7.6 | 26.4 | 5.0 | 6.2 | - | - | - | - | 3.0 | |||||
| Rottnest Island | 5.2 | 0.6 | - | 0.2 | 46.6 | 13.4 | 7.0 | 0.2 | 4.0 | 0.2 | 2.2 | - | - | - | - | - | - | 4.2 | 13.6 | 12.4 | 2.4 | 2.2 | 0.2 | - | 1.8 | - | 6.4 | 0.2 | - | - | ||
| Serpentine | 12.4 | - | - | - | 43.0 | 1.4 | 2.2 | 0.2 | - | 0.4 | - | - | - | - | - | - | - | 6.4 | 8.2 | 21.8 | 3.0 | 7.2 | - | - | 1.2 | 0.2 | 0.6 | - | 0.2 | - | - | |
| Subiaco Treatment Plant | 7.0 | 0.2 | - | - | 53.0 | 14.8 | 7.6 | - | - | - | - | - | - | - | - | - | - | 2.0 | 8.4 | 12.4 | 5.0 | 3.0 | 0.8 | 0.4 | 6.6 | - | 7.4 | - | - | |||
| Swanbourne | 6.8 | 0.2 | - | - | 64.6 | 15.0 | 8.2 | - | 0.6 | 0.2 | - | 0.2 | - | - | - | - | - | 1.2 | 6.0 | 15.2 | 2.6 | 3.0 | 1.0 | 0.4 | 4.8 | - | 7.8 | - | - | - | - | |
| Tamala Park (Mindarie) | 14.4 | - | - | - | 52.1 | 5.0 | 8.0 | 2.0 | 5.9 | 0.1 | 0.3 | - | 0.2 | - | - | - | - | - | 5.6 | 9.0 | 2.0 | 1.4 | - | - | 0.3 | 0.2 | 1.2 | 0.6 | - | - | - | |
| Wanneroo | 12.6 | - | - | - | 52.0 | → | → | → | 15.4 | 1.0 | 0.2 | 0.1 | - | - | - | - | - | - | 4.8 | → | → | → | 17.4 | - | 2.6 | 0.1 | ||||||
| Werribee | 7.4 | 0.2 | - | 0.2 | 32.2 | 0.6 | 0.8 | - | 0.2 | - | - | - | 0.4 | - | - | - | - | 0.2 | 2.0 | 15.4 | 8.2 | 4.8 | 0.2 | 0.2 | 0.4 | - | 0.4 | - | - | 0.4 | - | |
| Whiteman Park | 12.2 | - | - | - | 49.4 | 1.2 | 10.8 | 0.2 | - | 0.4 | - | - | - | - | - | - | - | - | - | 16.4 | 5.2 | 5.0 | - | - | 1.4 | - | 2.4 | 0.4 | ||||
|
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 Greater 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 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 “include the population within the urban area of the city, as well as people who regularly socialise, shop or work within the city, and live in small towns and rural areas surrounding the city. It is important to note that GCCSAs do not define the built up edge of the city. They provide a stable definition for these cities and are designed for the output of a range of social and economic survey data.”
This statement has been prepared based on information available at 9 am on Thursday 1 August 2019. 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.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
