Monday, 3 August 2020 - Monthly Climate Summary for Greater Perth - Product code IDCKGC11L0
Greater Perth in July 2020: dry and warm
July 2020 was a dry and warm month across Greater Perth. Monthly rainfall was well below the July average. Both mean maximum and minimum temperatures were warmer than average.
Below average rainfall
- July monthly rainfall varied from 60–90 mm in the coastal plain sites, up to 130–190 mm in the Perth hills.
- Most sites had 15 or 16 rain days; wettest days were the 14th and 17th with widespread daily rainfall in excess of 10 mm; the highest daily rainfall of the month was 41.6 mm at Karnet on the 17th
- Perth Metro recorded a monthly rainfall of 83.4 mm, which was its fourth-driest July on record and driest July since 2012, with rainfall records commenced in 1993.
Warmer than average days and nights
- Mean maximum and minimum temperatures were 0.5 °C to 1.5 °C above average across Greater Perth.
- Jandakot Airport and Bickley had their highest July mean daily maximum temperature on record
- Perth Metro's mean maximum temperature 19.4 °C was its equal second-highest in July on record, equalling with July 2012; the record is 19.5 °C set in July 2007 with recorded commenced in 1993.
- The warmest days with temperatures at 20 °C or above across Greater Perth were on the 5th, 22nd and 27th; Perth Airport recorded the highest temperature of the month at 25.1 °C on the 27th.
- A handful of cold nights with minimum temperatures at 5 °C or lower were observed during the month, with the lowest temperature 3.1 °C at Karnet on the 10th and at Pearce RAAF on the 24th.
- The mildest night with minimum temperatures in the low-to-mid 10s across Greater Perth was on the 27th; Swanbourne had its warmest July night on record.
Perth Metro
- Total rainfall for Perth Metro was 83.4 mm, which is 59% of the long-term average of 142.3 mm
- The mean daily maximum temperature for Perth Metro was 19.4 °C, which is 1.0 °C above the long-term average of 18.4 °C
- The warmest day was 24.4 °C on the 27th, and the coolest day was on the 17th when the temperature reached 15.0 °C
- The mean daily minimum temperature for Perth Metro was 9.1 °C, which is 1.2 °C above the long-term average of 7.9 °C
- The coldest morning was 4.3 °C on the 2nd, and the warmest morning was on the 23rd when the minimum temperature was 14.5 °C
Further information
- Media
- media@bom.gov.au (03) 9669 4057
Extremes Maps Records Summaries Daily observations Important notes the top
| Extremes in July 2020 | |
|---|---|
| Hottest day | 25.1 °C at Perth Airport on the 27th |
| Warmest days on average |
19.4 °C at Pearce RAAF 19.4 °C at Perth Airport 19.4 °C at Perth Metro |
| Coolest days on average | 16.1 °C at Bickley |
| Coldest day | 11.0 °C at Bickley on the 17th |
| Coldest night |
3.1 °C at Karnet on the 10th 3.1 °C at Pearce RAAF on the 24th |
| Coolest nights on average | 7.1 °C at Karnet |
| Warmest nights on average | 12.9 °C at Rottnest Island |
| Warmest night | 16.8 °C at Rottnest Island on the 27th |
| Warmest on average overall | 15.8 °C at Rottnest Island |
| Coolest on average overall | 11.9 °C at Karnet |
| Wettest overall | 194.2 mm at Huntly |
| Driest overall | 55.0 mm at Rottnest Island |
| Wettest day | 41.6 mm at Karnet on the 17th |
| Strongest wind gust | 89 km/h at Rottnest Island on the 14th |
Extremes Maps Records Summaries Daily observations Important notes the top
| Record highest July mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for July |
||
| Jandakot Aero | 19.1 | 19.0 | in 2007 | 30 | 18.0 |
| Bickley | 16.1 | 15.9 | in 2012 | 26 | 15.1 |
| Record highest July daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for July |
|||
| Swanbourne | 16.0 | on the 27th | 15.8 | on the 16th in 2017 | 27 | 9.7 |
Extremes Maps Records Summaries Daily observations Important notes the top
| Summary statistics for July 2020 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for July 2020 |
Diff from average |
Highest for July 2020 |
Mean for July 2020 |
Diff from average |
Lowest for July 2020 |
Total for July 2020 |
Average for July |
Rank of July 2020 |
Fraction of July average |
|||
| Bickley | 16.1 | +1.0 | 21.5 | 27th | 7.9 | +0.7 | 4.1 | 11th | 132.2 | 215.1 | low | 61% |
| Garden Island HSF | 18.6 | +0.8 | 22.5 | 27th | 12.0 | +0.8 | 8.2 | 10th | ||||
| Jandakot Aero | 19.1 | +1.1 | 24.0 | 27th | 8.3 | +1.4 | 3.3 | 25th | 107.0 | 171.7 | low | 62% |
| Karnet | 16.6 | +1.1 | 21.6 | 5th | 7.1 | +0.8 | 3.1 | 10th | 182.8 | 217.0 | low | 84% |
| Mandurah | 18.1 | +0.6 | 20.5 | 26th | 11.2 | +0.5 | 6.9 | 11th | 85.6 | 115.2 | low | 74% |
| Millendon (Swan Valley) | 19.3 | 24.6 | 27th | 8.6 | 3.3 | 24th | 59.4 | |||||
| Pearce RAAF | 19.4 | +1.5 | 24.9 | 27th | 9.2 | +0.8 | 3.1 | 24th | 68.2 | 132.8 | v low | 51% |
| Perth Airport | 19.4 | +1.4 | 25.1 | 27th | 8.6 | +0.6 | 3.6 | 2nd | 70.0 | 154.2 | v low | 45% |
| Perth Metro | 19.4 | +1.0 | 24.4 | 27th | 9.1 | +1.2 | 4.3 | 2nd | 83.4 | 142.3 | low | 59% |
| Rottnest Island | 18.6 | +0.8 | 22.5 | 27th | 12.9 | +0.5 | 8.9 | 18th | 55.0 | 111.0 | v low | 50% |
| Swanbourne | 19.1 | +0.7 | 23.5 | 5th | 10.9 | +1.2 | 6.2 | 10th | 75.2 | 147.0 | v low | 51% |
Extremes Maps Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for July 2020 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 13.7 | 14.9 | 16.5 | 18.6 | 20.2 | 15.3 | 14.9 | 14.5 | 14.6 | 12.7 | 14.1 | 18.8 | 15.5 | 14.0 | 13.7 | 17.2 | 11.0 | 14.2 | 12.0 | 15.7 | 16.9 | 20.2 | 15.2 | 15.6 | 18.9 | 17.7 | 21.5 | 16.8 | 17.7 | 18.5 | 17.7 |
| Garden Island HSF | 15.6 | 16.7 | 19.6 | 21.7 | 22.0 | 18.4 | 18.0 | 16.5 | 15.7 | 15.8 | 17.6 | 20.3 | 19.2 | 17.2 | 16.7 | 18.9 | 14.9 | 17.6 | 16.5 | 18.9 | 19.4 | 21.4 | 18.0 | 18.5 | 20.9 | 22.1 | 22.5 | 19.3 | 20.0 | 19.5 | 17.7 |
| Gosnells City | 16.8 | 18.7 | 15.2 | 18.7 | 20.4 | 23.2 | 20.2 | ||||||||||||||||||||||||
| Jandakot Aero | 15.7 | 17.4 | 19.5 | 22.5 | 23.1 | 19.7 | 17.9 | 16.3 | 16.6 | 15.7 | 17.4 | 21.6 | 19.5 | 17.3 | 17.6 | 19.9 | 14.8 | 17.9 | 16.0 | 18.7 | 20.5 | 22.7 | 18.9 | 19.3 | 22.0 | 21.2 | 24.0 | 19.6 | 20.0 | 20.1 | 19.6 |
| Karnet | 14.0 | 15.4 | 17.4 | 20.5 | 21.6 | 15.9 | 15.0 | 14.6 | 14.9 | 13.8 | 15.6 | 19.3 | 15.7 | 14.0 | 14.8 | 15.5 | 12.2 | 14.7 | 13.2 | 16.9 | 17.8 | 20.6 | 15.0 | 17.5 | 19.1 | 18.2 | 21.3 | 16.5 | 18.8 | 18.0 | 17.1 |
| Mandurah | 15.8 | 16.7 | 19.2 | 19.7 | 20.2 | 17.8 | 17.5 | 16.5 | 15.8 | 15.6 | 17.2 | 18.7 | 18.8 | 17.0 | 17.8 | 18.6 | 14.5 | 17.1 | 16.8 | 18.9 | 18.8 | 19.3 | 18.1 | 18.0 | 19.5 | 20.5 | 20.0 | 19.5 | 20.1 | 19.7 | 18.5 |
| Millendon (Swan Valley) | 16.8 | 17.9 | 19.4 | 22.1 | 22.9 | 19.1 | 17.5 | 17.3 | 17.0 | 16.1 | 17.8 | 20.9 | 19.3 | 17.8 | 18.2 | 20.1 | 14.6 | 18.5 | 16.0 | 18.5 | 21.4 | 23.5 | 19.4 | 18.5 | 22.3 | 21.0 | 24.6 | 19.1 | 20.7 | 21.0 | 19.7 |
| Pearce RAAF | 16.3 | 17.2 | 19.4 | 22.2 | 23.7 | 19.5 | 17.6 | 18.0 | 16.8 | 15.6 | 17.4 | 21.7 | 20.3 | 17.4 | 17.8 | 20.4 | 15.3 | 17.7 | 15.0 | 18.7 | 21.4 | 23.5 | 19.0 | 18.5 | 22.9 | 21.3 | 24.9 | 19.4 | 21.2 | 21.1 | 19.4 |
| Perth Airport | 16.5 | 17.9 | 19.7 | 22.3 | 23.3 | 19.7 | 18.1 | 17.4 | 17.5 | 15.9 | 17.5 | 21.4 | 18.9 | 17.6 | 17.6 | 20.4 | 15.3 | 17.6 | 15.7 | 18.8 | 20.8 | 23.9 | 19.6 | 19.0 | 22.4 | 21.1 | 25.1 | 19.5 | 21.1 | 21.2 | 20.1 |
| Perth Metro | 16.3 | 17.8 | 19.5 | 22.3 | 23.1 | 19.4 | 18.0 | 17.1 | 17.1 | 16.2 | 17.5 | 22.3 | 19.2 | 18.0 | 17.7 | 20.2 | 15.0 | 18.3 | 15.4 | 18.6 | 20.6 | 23.5 | 19.2 | 18.9 | 22.4 | 20.8 | 24.4 | 19.3 | 21.0 | 21.1 | 19.8 |
| Rottnest Island | 15.9 | 16.1 | 18.6 | 21.3 | 21.4 | 18.4 | 17.7 | 17.2 | 15.2 | 14.4 | 16.2 | 20.9 | 19.5 | 16.8 | 19.3 | 19.7 | 16.0 | 18.1 | 15.6 | 18.4 | 19.6 | 21.4 | 18.7 | 18.9 | 21.1 | 21.1 | 22.5 | 19.0 | 19.7 | 19.7 | 18.2 |
| Swanbourne | 16.4 | 17.7 | 19.7 | 22.4 | 23.5 | 19.0 | 18.0 | 17.4 | 15.9 | 15.7 | 17.7 | 22.2 | 19.4 | 17.2 | 16.8 | 19.9 | 14.8 | 17.0 | 15.6 | 19.0 | 21.6 | 21.6 | 18.6 | 19.7 | 22.6 | 21.1 | 22.4 | 19.3 | 20.0 | 19.3 | 19.1 |
|
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 July 2020 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 8.7 | 5.3 | 6.5 | 8.0 | 9.6 | 11.0 | 9.3 | 8.2 | 5.8 | 4.2 | 4.1 | 4.2 | 7.8 | 8.8 | 7.7 | 10.2 | 8.6 | 5.3 | 6.0 | 5.1 | 5.7 | 10.1 | 11.2 | 6.6 | 6.9 | 11.2 | 12.5 | 9.3 | 8.2 | 7.5 | 10.2 |
| Garden Island HSF | 13.1 | 9.8 | 10.3 | 13.6 | 13.6 | 15.1 | 14.3 | 12.4 | 10.3 | 8.2 | 8.5 | 11.0 | 13.5 | 11.1 | 12.3 | 14.1 | 11.4 | 9.5 | 11.3 | 9.3 | 11.3 | 13.7 | 15.2 | 9.0 | 10.2 | 13.8 | 15.2 | 12.7 | 12.6 | 10.2 | 14.7 |
| Gosnells City | 14.3 | 8.5 | 7.8 | 6.1 | 5.6 | 3.9 | 9.6 | ||||||||||||||||||||||||
| Jandakot Aero | 11.2 | 3.7 | 6.4 | 11.5 | 11.3 | 12.4 | 12.7 | 9.2 | 4.1 | 4.7 | 6.5 | 4.4 | 11.6 | 12.2 | 8.2 | 12.4 | 11.1 | 6.0 | 3.6 | 4.4 | 5.3 | 6.8 | 14.5 | 4.3 | 3.3 | 11.1 | 13.4 | 9.3 | 8.8 | 5.7 | 7.6 |
| Karnet | 9.2 | 6.5 | 5.9 | 8.3 | 9.7 | 11.0 | 9.5 | 6.0 | 5.2 | 3.1 | 4.6 | 5.7 | 6.7 | 9.8 | 7.2 | 8.5 | 7.9 | 4.2 | 4.8 | 4.7 | 7.2 | 7.3 | 4.6 | 4.8 | 11.5 | 11.9 | 8.0 | 7.4 | 5.2 | 8.0 | |
| Mandurah | 12.4 | 8.2 | 9.0 | 12.1 | 14.1 | 15.0 | 13.4 | 10.6 | 8.8 | 7.0 | 6.9 | 8.7 | 12.7 | 13.2 | 11.3 | 13.5 | 11.3 | 9.4 | 9.9 | 8.5 | 10.8 | 13.4 | 15.1 | 8.8 | 10.0 | 12.9 | 14.3 | 13.1 | 12.0 | 9.6 | 11.2 |
| Millendon (Swan Valley) | 11.2 | 4.0 | 8.1 | 12.4 | 12.4 | 12.3 | 10.8 | 9.7 | 4.2 | 5.5 | 7.7 | 8.8 | 8.1 | 12.1 | 7.1 | 12.6 | 10.9 | 5.5 | 3.7 | 5.2 | 6.0 | 8.2 | 11.9 | 3.3 | 4.7 | 14.5 | 15.4 | 10.6 | 8.4 | 5.4 | 6.8 |
| Pearce RAAF | 11.9 | 4.3 | 7.9 | 12.4 | 12.6 | 12.4 | 9.5 | 11.4 | 4.2 | 5.3 | 7.9 | 8.0 | 9.5 | 12.2 | 8.1 | 13.3 | 10.9 | 6.9 | 5.0 | 5.3 | 7.7 | 9.6 | 12.1 | 3.1 | 8.3 | 15.0 | 15.4 | 11.0 | 11.1 | 7.0 | 7.2 |
| Perth Airport | 11.2 | 3.6 | 6.1 | 12.9 | 13.2 | 12.5 | 10.5 | 9.8 | 4.0 | 5.3 | 5.0 | 5.4 | 7.2 | 12.1 | 9.2 | 12.5 | 11.3 | 5.4 | 3.6 | 4.9 | 9.0 | 7.5 | 13.9 | 3.8 | 7.4 | 14.0 | 12.5 | 11.0 | 9.1 | 5.9 | 7.9 |
| Perth Metro | 12.0 | 4.3 | 7.1 | 12.3 | 10.4 | 12.9 | 12.2 | 10.7 | 6.0 | 4.8 | 4.8 | 7.3 | 11.3 | 12.4 | 9.2 | 12.5 | 11.6 | 7.3 | 4.4 | 5.1 | 5.2 | 8.1 | 14.5 | 4.4 | 5.1 | 13.9 | 14.1 | 11.5 | 11.6 | 6.5 | 8.7 |
| Rottnest Island | 13.1 | 11.1 | 12.2 | 13.5 | 16.6 | 13.9 | 12.2 | 13.5 | 11.3 | 9.9 | 10.1 | 11.4 | 14.6 | 10.8 | 11.2 | 14.1 | 11.3 | 8.9 | 12.2 | 11.0 | 13.3 | 14.7 | 15.4 | 11.9 | 13.5 | 15.0 | 16.8 | 13.9 | 15.4 | 13.3 | 15.3 |
| Swanbourne | 13.2 | 7.1 | 8.6 | 12.3 | 14.1 | 13.8 | 12.9 | 11.4 | 7.7 | 6.2 | 6.2 | 8.0 | 12.7 | 12.8 | 10.9 | 13.4 | 11.3 | 8.4 | 7.3 | 7.5 | 9.2 | 12.0 | 15.9 | 7.4 | 9.3 | 13.6 | 16.0 | 13.1 | 13.1 | 9.6 | 11.5 |
|
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 2020 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2.2 | 0.2 | - | - | - | 8.1 | 2.4 | 5.1 | 0.2 | - | - | - | 6.9 | 18.8 | 2.6 | 3.6 | 22.3 | 11.5 | 0.6 | - | - | - | 3.9 | 0.2 | - | 8.4 | 0.2 | 10.7 | 0.1 | - | 0.7 | |
| Araluen | - | - | - | - | 5.4 | 6.0 | 4.4 | - | - | - | - | 5.4 | 33.0 | 1.4 | 1.8 | 26.4 | 4.0 | 0.4 | - | - | - | 5.4 | 2.0 | - | 8.2 | 1.0 | 17.6 | |||||
| Bickley | 6.8 | 0.2 | 0.2 | - | - | 5.8 | 10.0 | 5.6 | - | 0.4 | - | - | 2.8 | 39.2 | 0.6 | 2.0 | 20.8 | 9.6 | 0.8 | - | 0.2 | - | 4.4 | 0.2 | - | 2.2 | 1.2 | 19.0 | 0.2 | - | - | |
| Bungendore | 8.4 | 0.2 | - | - | - | 3.0 | 4.4 | 4.4 | 0.2 | 0.4 | - | - | 4.4 | 32.2 | 3.2 | 2.8 | 19.2 | 6.0 | 0.6 | 0.2 | - | - | 4.6 | 0.8 | 0.2 | 8.6 | - | 17.2 | - | 0.2 | 0.2 | |
| Chidlow | 3.3 | - | - | - | - | 2.8 | 2.4 | 3.0 | - | - | - | → | 1.2 | 23.6 | - | 0.8 | 14.4 | 2.8 | → | 0.3 | - | - | - | - | - | → | 3.8 | 6.2 | ||||
| Gidgegannup | 6.8 | 0.2 | - | - | - | 2.0 | 4.4 | 5.8 | - | 0.4 | - | - | 0.6 | 25.8 | 0.8 | 0.8 | 20.4 | 2.6 | 0.4 | - | - | - | 4.0 | 0.2 | - | 2.0 | 0.6 | 8.2 | - | - | - | |
| Hopelands | 2.0 | - | - | - | - | 11.8 | 6.0 | 4.0 | - | - | - | - | 10.6 | → | 17.4 | 6.4 | 30.0 | 1.2 | - | - | - | - | 5.0 | - | - | 8.8 | → | 11.4 | ||||
| Huntly | 7.0 | - | - | 0.2 | - | 12.0 | 26.8 | 7.8 | - | - | - | - | 13.8 | 30.0 | 5.0 | 5.0 | 35.4 | 3.0 | 1.0 | - | - | - | 11.2 | 0.6 | - | 8.8 | - | 24.0 | - | - | 2.6 | |
| Jandakot Aero | 4.0 | - | - | - | 2.4 | 4.4 | 3.8 | 0.2 | 0.2 | - | 6.0 | 39.2 | 1.4 | 4.6 | 17.2 | 5.0 | 1.6 | - | - | - | 3.2 | - | - | 2.6 | - | 11.2 | - | - | - | |||
| Jarrahdale | 11.4 | 0.2 | 0.4 | - | - | 6.0 | 13.0 | 7.2 | 0.2 | 0.2 | 0.2 | - | 7.8 | 34.0 | 3.8 | 4.8 | 32.6 | 4.6 | 1.4 | - | 0.2 | 0.4 | 10.8 | 0.4 | 0.2 | 10.4 | 0.2 | 22.6 | - | 0.2 | 0.4 | |
| Karnet | 7.4 | - | 0.3 | - | - | 4.8 | 22.3 | 9.6 | 0.3 | - | - | - | 10.4 | 27.3 | 2.0 | 6.2 | 41.6 | 0.2 | 0.6 | 0.1 | - | - | 9.8 | 3.0 | - | 17.5 | - | 18.8 | 0.4 | - | 0.2 | |
| Karragullen North | 5.2 | 0.2 | - | → | → | 8.2 | 8.8 | 5.6 | 0.2 | - | - | - | 3.2 | 40.4 | 0.6 | 1.4 | 25.6 | 6.6 | 0.8 | - | - | - | 5.0 | 1.0 | - | 5.2 | 0.8 | 16.2 | ||||
| Maida Vale | 4.4 | - | - | - | - | 3.6 | 7.2 | 4.2 | - | - | - | - | 3.6 | 23.4 | 0.4 | 1.0 | 14.0 | 2.0 | 1.8 | - | - | - | 2.2 | - | - | 1.8 | 1.6 | 12.0 | - | - | 0.2 | |
| Mandurah | 2.6 | - | - | - | - | 16.4 | 5.4 | 2.2 | - | - | - | - | 4.6 | 4.8 | 1.0 | 4.2 | 21.2 | 4.0 | 0.4 | - | - | - | 3.4 | 0.2 | - | 7.4 | 0.2 | 7.2 | - | - | 0.4 | |
| Millendon (Swan Valley) | 3.4 | - | - | - | 2.6 | 1.2 | 5.0 | - | - | - | - | 0.4 | 12.8 | 1.6 | - | 17.4 | 1.2 | 0.4 | - | - | - | 2.4 | 0.2 | - | 1.2 | 1.6 | 8.0 | - | - | - | ||
| Mount Solus | 7.6 | - | 0.2 | - | - | 4.6 | 25.8 | 8.8 | - | 0.4 | 0.2 | - | 10.4 | 35.2 | 2.6 | 6.8 | 29.8 | 2.8 | 0.6 | 0.2 | - | - | 6.6 | 0.4 | - | 5.2 | 0.2 | 10.4 | - | 0.2 | - | |
| Muchea | 3.6 | - | 0.2 | - | - | 0.6 | 2.0 | 3.0 | 0.2 | - | - | - | 1.6 | 17.0 | 1.4 | 0.2 | 15.8 | 1.6 | 1.6 | - | 0.2 | - | 4.2 | - | - | 0.6 | 4.8 | 4.8 | - | - | 0.2 | |
| Mundaring | 10.0 | - | - | → | → | 2.6 | 5.8 | 7.0 | - | - | → | → | 1.0 | 21.0 | 1.8 | 0.8 | 21.4 | 3.6 | - | 1.0 | - | - | 4.4 | - | - | 4.2 | - | 12.4 | ||||
| Pearce RAAF | 7.0 | - | - | - | 0.4 | 0.6 | 4.6 | - | 0.2 | - | - | 0.2 | 20.4 | 1.8 | - | 17.0 | 3.4 | 2.6 | 0.2 | - | - | 2.4 | - | 0.2 | 0.8 | 0.8 | 5.6 | - | - | |||
| Perth Airport | 4.2 | 0.2 | - | - | - | 2.8 | 3.8 | 4.0 | 0.2 | 0.2 | - | - | 1.6 | 21.2 | 0.6 | 0.4 | 12.0 | 3.4 | 0.4 | - | - | - | 1.0 | - | - | 3.6 | 1.0 | 9.2 | 0.2 | - | - | |
| Perth Metro | 3.0 | - | - | - | 6.8 | 6.2 | 4.6 | - | - | - | - | 3.4 | 25.6 | 1.8 | 1.0 | 12.6 | 1.4 | 0.4 | - | - | - | 1.6 | - | - | 2.2 | 4.8 | 8.0 | - | - | - | ||
| Pinjarra Refinery | 1.6 | 0.2 | - | - | - | 11.2 | 14.0 | 3.8 | 0.1 | - | - | - | 15.0 | 20.6 | 2.2 | 2.8 | 17.0 | 0.4 | 0.5 | - | - | - | 7.0 | 0.2 | - | 4.0 | - | 12.0 | 0.2 | - | 0.6 | |
| Pinjarra South | 1.6 | - | - | - | - | 10.4 | 15.4 | 3.2 | - | - | - | - | 8.4 | 14.0 | 2.8 | 3.0 | 15.8 | 0.6 | 1.0 | - | - | - | 5.2 | - | - | 2.8 | 0.2 | 8.4 | - | - | 0.4 | |
| Roleystone | 5.6 | - | - | - | - | 6.2 | 7.8 | - | 5.0 | - | - | - | 3.0 | 34.0 | 2.2 | 2.6 | 25.6 | 6.2 | 1.4 | - | - | - | 5.2 | - | - | 8.2 | - | 17.0 | ||||
| Rottnest Island | 2.0 | 0.2 | - | - | 7.4 | 2.0 | 2.8 | 4.4 | 0.2 | - | - | 1.8 | 4.4 | 0.4 | 4.8 | 12.6 | 4.2 | 0.8 | - | - | - | 0.2 | - | - | 2.0 | 0.2 | 4.4 | 0.2 | - | - | ||
| Serpentine | 5.2 | - | - | - | - | 3.8 | 5.4 | 5.6 | 0.2 | - | - | - | 7.6 | 21.2 | 4.0 | 4.0 | 31.0 | 3.0 | 1.6 | - | - | - | 6.0 | 0.2 | - | 8.6 | - | 14.0 | - | - | 0.4 | |
| Subiaco Treatment Plant | 2.2 | - | - | - | - | 3.2 | 8.8 | 4.8 | - | - | - | - | 1.2 | 22.2 | 1.4 | 6.8 | 9.6 | |||||||||||||||
| Swanbourne | 2.2 | - | - | - | 2.0 | 5.8 | 3.6 | - | 0.2 | - | - | 1.4 | 23.0 | 1.2 | 7.2 | 12.0 | 1.8 | 1.8 | - | - | - | 1.4 | - | - | 3.0 | 0.4 | 7.6 | - | - | 0.6 | ||
| Tamala Park (Mindarie) | 3.1 | - | - | - | - | 2.8 | 0.5 | 6.9 | 2.0 | - | - | - | 0.8 | 17.6 | 5.4 | 1.8 | 18.2 | 1.0 | 2.6 | - | - | - | 0.5 | - | - | 0.4 | 2.0 | 4.6 | 0.1 | |||
| Wanneroo | 3.8 | - | - | → | → | → | 8.8 | 5.2 | 4.4 | - | → | → | 1.2 | 29.8 | 0.6 | 1.4 | 18.6 | - | - | - | 5.8 | - | 1.8 | - | → | → | 2.0 | 7.4 | - | - | 0.6 | |
| Werribee | 4.2 | 0.2 | - | - | - | 0.2 | 1.2 | 5.2 | 0.2 | - | 0.2 | - | 1.2 | 20.8 | 1.0 | - | 15.6 | 4.2 | 0.2 | - | - | - | 4.0 | 0.2 | - | 1.8 | 0.2 | 4.2 | - | 0.2 | - | |
| Whiteman Park | 3.0 | 0.2 | - | → | → | 3.2 | 2.4 | 6.8 | - | - | → | → | 1.8 | 23.8 | 1.6 | 0.4 | 15.2 | 1.4 | - | - | - | - | 3.0 | |||||||||
|
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 11 am on Monday 3 August 2020. 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
