Wednesday, 1 August 2018 - Monthly Climate Summary for Greater Perth - Product code IDCKGC11L0
Greater Perth in July 2018: warmer temperatures
Rainfall in July 2018 was near average to above average across Greater Perth. Mean maximum temperatures were all above average. Mean minimum temperatures were more than one degree above average across Perth.
Near average to above average rainfall
- Monthly rainfall totals were mostly in the 100-180 mm range, reaching 220-280 mm in the Perth hills
- Daily rainfall of 1 mm or more was recorded on 17 or 18 days across Perth, including moderate falls on five occasions (3rd,5th,15th,22nd,25th); the highest daily rainfall was 55.6 mm at Karragullen North in the Perth hills on the 22nd
Above average mean maximum and minimum temperatures across Perth
- Mean maximum temperatures were above average across Perth, with warm anomaly ranging from 0.4 °C at Bickley to 1.2 °C at Perth Airport
- Mean minimum temperatures were 1 °C to 2 °C above average, but it was cooler than last July across Perth
- The mildest mornings were on the 2nd or 3rd as the result of strong northerly to westerly winds and cloudy conditions; Rottnest Island had its highest minimum temperature in July on record on the 2nd
Perth Metro
- Total rainfall for Perth Metro was 152.0 mm, which is near average
- The mean maximum temperature for Perth Metro was 19.2 °C, which is 0.8 °C above average and the warmest July since 2012
- Daily maximum temperatures ranged from 22.8 °C (highest) on the 10th to 16.0 °C (lowest) on the 5th, and the absence of very warm (above 25 °C) or cold (below 15 °C) days at Perth Metro
- The mean minimum temperature for Perth Metro was 9.5 °C, which is 1.7 °C above average
- The coldest morning was 4.1 °C on the 6th, and the warmest morning was 14.8 °C on the 2nd
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 2018 | |
|---|---|
| Hottest day | 23.3 °C at Swanbourne on the 10th |
| Warmest days on average | 19.2 °C at Perth Metro |
| Coolest days on average | 15.5 °C at Bickley |
| Coldest day | 12.3 °C at Bickley on the 5th |
| Coldest night | 2.6 °C at Jandakot Aero on the 6th |
| Coolest nights on average | 8.3 °C at Bickley |
| Warmest nights on average | 13.4 °C at Rottnest Island |
| Warmest night | 17.4 °C at Rottnest Island on the 2nd |
| Warmest on average overall | 16.0 °C at Rottnest Island |
| Coolest on average overall | 11.9 °C at Bickley |
| Wettest overall | 278.6 mm at Huntly |
| Driest overall | 99.8 mm at Rottnest Island |
| Wettest day | 55.6 mm at Karragullen North on the 22nd |
| Strongest wind gust | 102 km/h at Rottnest Island on the 22nd |
Extremes Maps Records Summaries Daily observations Important notes the top
| Record highest July daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for July |
|||
| Rottnest Island | 17.4 | on the 2nd | 17.0 | on the 27th in 1996 | 29 | 12.3 |
Extremes Maps Records Summaries Daily observations Important notes the top
| Summary statistics for July 2018 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for July 2018 |
Diff from average |
Highest for July 2018 |
Mean for July 2018 |
Diff from average |
Lowest for July 2018 |
Total for July 2018 |
Average for July |
Rank of July 2018 |
Fraction of July average |
|||
| Bickley | 15.5 | +0.4 | 19.1 | 9th | 8.3 | +1.1 | 5.1 | 6th | 271.8 | 218.3 | high | 125% |
| Garden Island HSF | 18.5 | +0.7 | 22.0 | 10th | 12.3 | +1.2 | 7.3 | 11th | 120.0 | 115.5 | average | 104% |
| Jandakot Aero | 18.8 | +0.9 | 22.5 | 10th | 8.8 | +2.0 | 2.6 | 6th | 195.0 | 174.0 | average | 112% |
| Mandurah | 18.2 | +0.8 | 21.8 | 10th | 11.7 | +1.1 | 7.3 | 6th | 149.0 | 117.2 | high | 127% |
| Millendon (Swan Valley) | 19.0 | 22.2 | 1st | 9.0 | 3.3 | 6th | ||||||
| Pearce RAAF | 19.0 | +1.1 | 22.8 | 1st | 9.4 | +1.0 | 3.3 | 11th | 150.4 | 134.4 | average | 112% |
| Perth Airport | 19.1 | +1.2 | 22.5 | 10th | 9.2 | +1.2 | 3.0 | 6th | 180.2 | 156.0 | high | 116% |
| Perth Metro | 19.2 | +0.8 | 22.8 | 10th | 9.5 | +1.7 | 4.1 | 6th | 152.0 | 145.9 | average | 104% |
| Rottnest Island | 18.6 | +0.9 | 21.1 | 1st | 13.4 | +1.1 | 8.9 | 15th | 99.8 | 112.6 | average | 89% |
| Swanbourne | 19.1 | +0.7 | 23.3 | 10th | 11.3 | +1.6 | 6.5 | 6th | 172.8 | 150.3 | average | 115% |
Extremes Maps Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for July 2018 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 18.8 | 16.0 | 14.8 | 14.3 | 12.3 | 15.6 | 13.3 | 16.3 | 19.1 | 18.7 | 18.0 | 17.1 | 15.8 | 12.4 | 13.6 | 14.5 | 14.6 | 14.5 | 14.7 | 17.0 | 15.5 | 14.4 | 15.4 | 15.4 | 16.8 | 17.2 | 12.7 | 14.2 | 15.8 | 15.8 | 15.6 |
| Garden Island HSF | 20.9 | 20.1 | 18.1 | 18.0 | 15.8 | 16.9 | 17.2 | 19.8 | 19.5 | 22.0 | 17.7 | 20.0 | 19.0 | 18.3 | 17.9 | 18.0 | 18.4 | 18.5 | 17.5 | 19.3 | 19.5 | 17.8 | 17.7 | 19.3 | 19.3 | 18.0 | 16.6 | 17.5 | 18.9 | 16.7 | 18.2 |
| Gosnells City | 22.0 | 18.5 | 19.5 | 17.8 | 20.2 | 22.0 | 21.3 | 19.1 | 18.0 | 16.5 | 18.8 | 18.5 | 21.2 | 19.7 | 20.0 | 20.5 | 20.5 | 17.0 | 17.6 | 19.7 | |||||||||||
| Jandakot Aero | 22.0 | 19.4 | 18.6 | 18.6 | 15.3 | 16.7 | 19.9 | 21.2 | 22.5 | 19.4 | 20.6 | 19.0 | 18.0 | 16.8 | 17.9 | 18.2 | 18.3 | 17.9 | 20.1 | 18.4 | 18.5 | 18.4 | 18.9 | 20.3 | 19.3 | 16.6 | 17.5 | 19.6 | 17.6 | 18.8 | |
| Karnet | 19.4 | 17.3 | 14.8 | 12.6 | 16.0 | 19.0 | 20.1 | 15.9 | 14.3 | 14.8 | 15.4 | 15.4 | 18.0 | 16.0 | 16.8 | 13.5 | 16.6 | ||||||||||||||
| Mandurah | 19.6 | 19.6 | 17.9 | 17.6 | 15.1 | 17.3 | 19.4 | 19.7 | 21.8 | 18.9 | 19.1 | 18.4 | 17.4 | 17.0 | 17.7 | 17.2 | 18.4 | 17.9 | 18.8 | 18.8 | 17.3 | 17.6 | 18.9 | 18.1 | 18.8 | 16.6 | 16.9 | 18.5 | 17.4 | 17.8 | |
| Millendon (Swan Valley) | 22.2 | 18.4 | 19.0 | 18.4 | 15.6 | 18.5 | 16.7 | 19.7 | 22.1 | 22.1 | 20.2 | 20.7 | 19.6 | 16.8 | 17.1 | 19.0 | 18.6 | 18.8 | 17.9 | 20.3 | 19.9 | 18.9 | 19.5 | 18.7 | 20.5 | 16.9 | 17.9 | 18.9 | 18.9 | 19.0 | |
| Pearce RAAF | 22.8 | 17.9 | 18.3 | 18.4 | 15.1 | 18.3 | 17.3 | 19.2 | 22.1 | 21.5 | 20.1 | 21.2 | 19.5 | 17.4 | 17.6 | 18.4 | 18.2 | 19.3 | 18.8 | 20.7 | 20.6 | 18.9 | 17.9 | 19.2 | 20.7 | 19.8 | 16.4 | 17.5 | 18.6 | 18.4 | 18.8 |
| Perth Airport | 21.8 | 18.5 | 18.6 | 18.5 | 15.7 | 19.2 | 16.8 | 19.9 | 22.1 | 22.5 | 20.1 | 20.6 | 19.0 | 17.8 | 16.8 | 18.3 | 18.6 | 18.6 | 18.4 | 21.0 | 19.7 | 18.8 | 19.0 | 18.7 | 21.3 | 20.3 | 16.6 | 17.5 | 19.4 | 18.5 | 19.4 |
| Perth Metro | 22.0 | 18.6 | 19.1 | 18.9 | 16.0 | 18.5 | 16.8 | 19.7 | 21.7 | 22.8 | 19.8 | 20.5 | 19.3 | 17.1 | 17.8 | 18.2 | 18.8 | 18.7 | 18.4 | 20.5 | 20.1 | 18.8 | 19.4 | 18.9 | 20.7 | 20.3 | 17.5 | 17.7 | 19.8 | 18.6 | 19.7 |
| Rottnest Island | 21.1 | 19.9 | 18.2 | 18.0 | 16.6 | 16.7 | 16.3 | 19.7 | 19.8 | 20.1 | 19.3 | 20.5 | 18.9 | 18.8 | 18.3 | 18.6 | 17.8 | 18.3 | 17.1 | 19.7 | 19.9 | 18.0 | 18.5 | 19.4 | 19.1 | 18.7 | 17.2 | 17.6 | 19.2 | 17.6 | 18.3 |
| Swanbourne | 21.8 | 19.2 | 18.8 | 18.1 | 16.1 | 18.4 | 17.1 | 20.3 | 20.8 | 23.3 | 18.4 | 21.3 | 19.1 | 17.9 | 18.0 | 18.3 | 18.7 | 19.4 | 18.3 | 19.7 | 19.0 | 18.4 | 19.4 | 18.3 | 20.3 | 18.8 | 17.5 | 19.8 | 18.1 | 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 2018 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 6.0 | 12.3 | 11.1 | 8.7 | 6.0 | 5.1 | 7.9 | 5.2 | 5.3 | 6.9 | 7.3 | 7.9 | 10.0 | 7.9 | 5.9 | 9.4 | 7.6 | 11.0 | 7.0 | 5.9 | 10.0 | 11.2 | 10.0 | 10.2 | 9.7 | 9.1 | 10.4 | 7.6 | 9.0 | 9.5 | 5.2 |
| Garden Island HSF | 12.6 | 15.8 | 16.2 | 14.4 | 10.1 | 7.5 | 11.1 | 10.7 | 9.8 | 8.6 | 7.3 | 8.8 | 13.2 | 11.8 | 9.5 | 13.9 | 15.2 | 15.3 | 10.3 | 10.6 | 14.3 | 15.1 | 14.3 | 14.2 | 14.3 | 13.6 | 14.3 | 11.9 | 12.0 | 14.3 | 9.5 |
| Gosnells City | 8.0 | 12.5 | 12.5 | 5.5 | 6.9 | 7.8 | 8.6 | 7.0 | 8.5 | 10.8 | 6.0 | 7.0 | |||||||||||||||||||
| Jandakot Aero | 4.9 | 14.2 | 14.4 | 12.9 | 8.5 | 2.6 | 5.3 | 5.9 | 3.9 | 4.6 | 3.7 | 3.2 | 10.9 | 6.9 | 7.2 | 10.5 | 9.1 | 12.6 | 6.8 | 5.3 | 13.0 | 14.1 | 13.0 | 10.7 | 10.2 | 9.0 | 12.8 | 9.7 | 10.3 | 11.9 | 3.4 |
| Karnet | 9.9 | 11.0 | 7.8 | 2.7 | 7.0 | 4.0 | 3.6 | 6.9 | 9.1 | 5.8 | 6.3 | 4.3 | 11.8 | 12.0 | 10.2 | 6.5 | 6.9 | ||||||||||||||
| Mandurah | 11.7 | 15.2 | 15.8 | 14.0 | 10.3 | 7.3 | 10.2 | 9.1 | 8.2 | 9.2 | 8.8 | 7.8 | 11.3 | 11.6 | 10.0 | 13.4 | 13.9 | 13.8 | 10.5 | 10.5 | 14.1 | 15.0 | 12.0 | 12.1 | 14.5 | 11.2 | 13.2 | 11.8 | 13.1 | 12.3 | 9.7 |
| Millendon (Swan Valley) | 5.3 | 15.4 | 14.1 | 10.4 | 7.5 | 3.3 | 5.4 | 7.2 | 4.7 | 8.5 | 4.0 | 3.9 | 8.7 | 6.4 | 8.2 | 10.7 | 7.3 | 12.0 | 9.4 | 6.5 | 13.2 | 13.3 | 13.0 | 12.1 | 10.5 | 9.3 | 12.3 | 8.8 | 11.0 | 11.3 | 4.2 |
| Pearce RAAF | 7.7 | 15.9 | 13.0 | 10.5 | 8.6 | 4.1 | 5.3 | 5.9 | 8.3 | 7.6 | 3.3 | 4.1 | 9.3 | 5.5 | 7.9 | 11.6 | 8.7 | 12.4 | 10.4 | 9.1 | 13.1 | 13.0 | 10.8 | 11.9 | 11.7 | 10.5 | 12.8 | 9.1 | 11.1 | 12.1 | 5.0 |
| Perth Airport | 8.3 | 14.7 | 14.0 | 10.1 | 7.3 | 3.0 | 5.2 | 7.6 | 9.1 | 4.6 | 4.2 | 3.5 | 9.8 | 7.1 | 8.1 | 10.6 | 8.3 | 13.0 | 7.4 | 8.1 | 13.4 | 14.0 | 14.0 | 12.1 | 10.5 | 9.2 | 12.7 | 9.2 | 10.3 | 12.4 | 4.7 |
| Perth Metro | 6.3 | 14.8 | 14.7 | 12.9 | 9.1 | 4.1 | 5.8 | 5.7 | 4.9 | 4.6 | 5.0 | 5.2 | 10.6 | 8.2 | 8.8 | 10.5 | 8.8 | 14.6 | 7.7 | 6.4 | 12.3 | 14.0 | 14.3 | 12.4 | 11.4 | 9.7 | 13.0 | 10.0 | 11.4 | 12.8 | 4.8 |
| Rottnest Island | 13.7 | 17.4 | 15.9 | 13.3 | 10.5 | 11.0 | 12.6 | 11.9 | 11.6 | 13.1 | 14.0 | 14.5 | 14.2 | 14.5 | 8.9 | 14.0 | 14.2 | 14.8 | 12.3 | 13.4 | 15.3 | 14.2 | 11.0 | 14.0 | 15.2 | 12.8 | 13.4 | 13.3 | 13.7 | 14.0 | 12.5 |
| Swanbourne | 9.5 | 15.7 | 15.7 | 13.8 | 10.1 | 6.5 | 8.8 | 8.0 | 8.4 | 7.8 | 8.8 | 7.3 | 11.9 | 9.9 | 9.3 | 12.3 | 14.4 | 15.5 | 9.4 | 9.1 | 13.3 | 14.5 | 14.2 | 13.2 | 12.8 | 12.9 | 12.9 | 11.0 | 12.5 | 12.7 | 7.5 |
|
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 2018 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 41.0 | 7.8 | 18.0 | 2.6 | - | - | - | - | - | - | 7.4 | 0.6 | 13.4 | 5.0 | 2.2 | 0.4 | 4.8 | - | 5.0 | 23.0 | 8.0 | 1.4 | 4.0 | 30.4 | 2.4 | 4.2 | - | 8.6 | - | |
| Bickley | - | 3.6 | 45.6 | 6.4 | 29.8 | 0.4 | 0.2 | 0.2 | - | - | 0.2 | - | 12.4 | 2.4 | 23.6 | 12.0 | 3.6 | - | 5.8 | 0.2 | 9.2 | 50.8 | 8.2 | 8.2 | 1.2 | 36.6 | 3.4 | 3.4 | 0.2 | 4.2 | - | |
| Bungendore | - | 5.2 | 44.0 | 9.2 | 22.0 | 0.4 | 0.4 | - | - | 0.4 | - | 0.4 | 11.8 | 0.8 | 21.8 | 9.8 | 3.2 | 0.8 | 2.8 | - | 6.6 | 28.8 | 10.6 | 1.8 | 1.6 | 31.8 | 1.4 | 3.0 | - | 8.6 | 0.4 | |
| Chidlow | → | 4.6 | 33.8 | - | 28.8 | 0.4 | - | - | - | - | - | - | 3.8 | 0.4 | → | 27.2 | 2.8 | - | 1.8 | - | 2.8 | → | 32.8 | 9.2 | 1.4 | 30.8 | 1.4 | 1.4 | → | 1.8 | ||
| Garden Island HSF | - | 3.8 | 33.4 | 2.6 | 9.4 | 0.8 | - | - | - | - | - | - | 3.2 | 0.2 | 16.0 | 1.2 | 1.2 | - | 3.0 | - | 4.6 | 5.4 | 3.0 | 2.4 | 2.8 | 16.2 | 3.8 | 3.4 | - | 3.6 | - | |
| Gidgegannup | - | 0.6 | 34.0 | 2.8 | 25.6 | 0.6 | - | 0.2 | 0.2 | - | - | - | 4.0 | 0.6 | 23.8 | 7.0 | 3.4 | 0.2 | 4.0 | - | 5.6 | 24.2 | 8.4 | 14.8 | 1.4 | 28.6 | 1.0 | 2.6 | - | 2.4 | - | |
| Gosnells City | - | - | - | - | - | - | - | - | - | - | → | → | 11.4 | 1.0 | 21.3 | 6.0 | → | → | 5.6 | - | → | → | → | → | → | → | → | → | → | 4.6 | ||
| Hopelands | - | 38.8 | → | 25.0 | 17.0 | → | → | → | 1.0 | - | - | - | 3.6 | 1.0 | 13.0 | 5.4 | 0.8 | 1.4 | 0.8 | - | 15.4 | 7.6 | 2.6 | 1.8 | 4.0 | 25.8 | 0.8 | → | 2.0 | 5.2 | 0.2 | |
| Huntly | - | 2.8 | 39.4 | 13.2 | 24.8 | 0.8 | - | - | - | - | - | - | 2.0 | 1.8 | 23.4 | 13.8 | 3.2 | 3.6 | 4.8 | - | 3.2 | 37.0 | 6.8 | 4.4 | 35.0 | 47.8 | 1.4 | 2.2 | - | 7.2 | - | |
| Jandakot Aero | - | 4.2 | 33.2 | 2.4 | 12.0 | 1.8 | - | - | - | - | 7.6 | 0.4 | 17.4 | 4.0 | 3.0 | 0.8 | 5.8 | - | 10.8 | 28.0 | 5.6 | 1.8 | 2.6 | 37.4 | 2.4 | 6.2 | - | 7.6 | - | |||
| Jarrahdale | - | 2.6 | 42.6 | 5.6 | 26.2 | 0.4 | 0.2 | 0.2 | 0.2 | 0.2 | 0.4 | 0.2 | 10.4 | 0.8 | 18.4 | 11.2 | 4.4 | 2.0 | 5.0 | 0.4 | 4.4 | 30.8 | 7.4 | 2.8 | 2.4 | 43.8 | 1.4 | 2.0 | - | 7.0 | 0.2 | |
| Karnet | → | 4.7 | 30.0 | → | 43.6 | 0.9 | 1.5 | - | - | - | 0.1 | 2.0 | → | 20.1 | 3.6 | → | 1.6 | - | 8.0 | 34.1 | → | → | → | → | 8.2 | 1.6 | → | 15.0 | ||||
| Karragullen North | - | 4.4 | 33.2 | 11.4 | 19.2 | 0.4 | - | - | - | - | - | - | 13.4 | - | 24.2 | 13.4 | 8.6 | 1.0 | 6.4 | - | 8.2 | 55.6 | 9.2 | 6.2 | 0.8 | 30.8 | 1.8 | 3.8 | - | 5.4 | ||
| Maida Vale | - | 3.2 | 33.6 | 4.4 | 12.6 | 1.4 | 0.2 | - | - | - | 0.2 | - | 9.2 | 0.8 | 17.4 | 6.4 | 0.8 | - | - | - | 7.8 | 30.8 | 3.2 | 7.0 | 0.6 | 26.4 | 3.4 | 3.4 | - | 5.6 | ||
| Mandurah | - | 9.0 | 25.4 | 4.0 | 11.8 | 1.6 | - | - | - | - | - | 3.0 | 6.8 | 8.0 | 1.8 | 0.6 | 0.6 | 2.2 | - | - | 4.0 | 6.0 | 2.0 | 15.8 | 34.0 | 1.8 | 2.2 | 0.2 | 8.0 | 0.2 | ||
| Midland | → | 1.0 | - | 25.1 | 17.8 | 0.8 | - | - | - | - | - | - | → | → | → | → | 34.2 | - | 2.4 | - | → | → | 30.6 | - | 7.2 | 17.8 | 3.2 | → | → | 4.8 | - | |
| Millendon (Swan Valley) | - | 0.6 | 24.6 | 1.6 | 16.0 | 0.8 | - | - | - | - | - | - | 4.8 | 1.0 | 14.4 | 4.0 | 2.8 | - | 2.0 | 0.2 | 3.8 | 16.4 | 4.6 | 7.4 | 0.4 | 4.0 | 1.6 | 0.2 | 1.6 | 0.2 | ||
| Mosman Park | → | 20.0 | 0.6 | 6.4 | 11.0 | 3.4 | - | - | - | - | - | - | - | - | - | 30.1 | 0.8 | - | 2.3 | - | - | - | 45.8 | - | 4.4 | 31.0 | 3.4 | → | → | 10.2 | 0.2 | |
| Mount Solus | - | 4.8 | 50.2 | 21.4 | 35.6 | 0.2 | 0.2 | 0.2 | 0.2 | - | - | - | 7.4 | 0.8 | 15.4 | 13.6 | 1.6 | 2.2 | 2.6 | - | 3.4 | 31.2 | 19.0 | 2.8 | 3.8 | 30.0 | 0.8 | 2.0 | - | 4.0 | - | |
| Muchea | - | 1.0 | 37.8 | 1.4 | 15.8 | 2.2 | 0.2 | - | 0.2 | - | - | 0.2 | 2.0 | 0.6 | 14.6 | 2.4 | 1.4 | - | 2.2 | - | 2.4 | 14.8 | 3.8 | 4.4 | 1.6 | 23.2 | 3.4 | 2.8 | - | 1.2 | - | |
| Mundaring | - | 1.6 | 32.0 | 2.8 | 28.8 | 1.4 | - | - | - | - | - | - | 8.6 | - | 26.4 | 14.0 | 5.4 | 0.2 | 3.2 | 0.2 | 6.0 | 32.8 | 7.8 | 9.6 | 2.0 | 24.4 | 4.2 | 2.2 | - | 4.6 | 0.2 | |
| Noble Falls | 1.2 | 41.0 | 30.0 | 5.0 | 3.4 | 18.0 | 4.6 | 2.0 | 3.0 | 18.0 | 6.6 | 10.0 | 2.0 | 30.0 | 1.0 | 2.0 | 2.0 | |||||||||||||||
| Pearce RAAF | - | 0.6 | 33.8 | 0.8 | 23.8 | 0.4 | - | - | - | - | - | - | 3.4 | 0.2 | 17.2 | 2.0 | 1.2 | - | 2.0 | - | 1.8 | 13.8 | 8.6 | 7.2 | 1.6 | 22.6 | 2.8 | 3.2 | - | 3.4 | - | |
| Perth Airport | - | 2.2 | 26.6 | 3.6 | 18.0 | 0.6 | - | - | - | - | - | - | 10.8 | 0.4 | 24.0 | 8.8 | 1.8 | - | 1.0 | - | 3.0 | 35.6 | 2.6 | 5.8 | 0.2 | 23.2 | 2.6 | 5.0 | - | 4.4 | - | |
| Perth Metro | - | 3.4 | 31.2 | 2.8 | 10.8 | 1.4 | - | - | - | - | - | - | 8.6 | 0.8 | 23.4 | 6.2 | 1.2 | - | 2.0 | - | 5.2 | 20.2 | 2.0 | 5.4 | 0.6 | 17.4 | 3.0 | 4.8 | - | 1.6 | - | |
| Pinjarra Refinery | - | 6.0 | 26.4 | 10.4 | 15.2 | 0.8 | - | - | - | - | - | - | 6.6 | 0.8 | 14.4 | 4.6 | 1.7 | 1.8 | 0.8 | - | 6.0 | 16.0 | 3.0 | 1.8 | 4.4 | 23.2 | 1.3 | 0.8 | - | 5.2 | 0.2 | |
| Pinjarra South | - | 5.8 | 28.0 | 13.6 | 17.2 | 0.6 | - | - | - | - | - | - | 4.0 | 1.8 | 11.4 | 4.2 | 1.0 | 0.8 | 0.8 | - | 2.0 | 12.2 | 1.8 | 2.2 | 5.2 | 23.4 | 1.0 | 1.8 | - | 9.2 | - | |
| Roleystone | - | 4.4 | 27.6 | 15.8 | 19.8 | - | - | - | - | - | - | - | 8.4 | 1.4 | 16.4 | 10.4 | 4.0 | 0.6 | 6.8 | - | 6.6 | 46.0 | 6.4 | 3.6 | 1.6 | 30.6 | 2.8 | 2.4 | - | 5.0 | ||
| Rottnest Island | - | 4.2 | 25.4 | 5.2 | 3.2 | 3.2 | - | - | - | - | - | - | 1.0 | - | 8.0 | 2.8 | 0.6 | - | 2.0 | - | 1.2 | 12.4 | 2.2 | 0.2 | 9.0 | 11.6 | 4.2 | 0.8 | - | 2.6 | - | |
| Serpentine | - | 2.4 | 37.8 | 5.4 | 17.2 | 0.2 | - | - | - | - | - | - | 5.2 | 1.0 | 13.4 | 5.2 | 1.2 | 0.8 | 1.2 | - | 2.2 | 14.4 | 5.0 | 3.0 | 4.0 | 30.4 | 1.6 | 2.2 | - | 8.2 | - | |
| Swanbourne | - | 5.8 | 21.2 | 4.0 | 11.0 | 3.4 | 0.2 | - | - | - | - | - | 5.2 | 0.6 | 21.2 | 4.6 | 0.8 | - | 2.6 | - | 6.2 | 36.8 | 2.8 | 5.0 | 1.0 | 31.0 | 5.6 | - | 3.8 | - | ||
| Wanneroo | → | 3.6 | 24.2 | → | 18.2 | 1.6 | - | - | - | - | - | - | 4.4 | → | → | 15.0 | 1.2 | 0.4 | 3.4 | - | → | → | → | 38.6 | 2.0 | 17.2 | 5.0 | → | → | 10.5 | ||
| Werribee | 0.2 | 0.8 | 37.6 | 0.8 | 28.2 | 0.2 | 0.2 | - | 0.2 | - | - | 0.2 | 1.8 | 0.2 | 15.6 | 3.0 | 2.2 | - | 1.4 | - | 1.6 | 13.8 | 9.4 | 9.6 | 0.2 | 25.8 | 1.0 | 1.8 | - | 1.8 | - | |
| Whiteman Park | - | 2.0 | 26.0 | 2.2 | 20.0 | - | - | - | - | - | - | 1.2 | 6.8 | 1.2 | 14.6 | 5.6 | - | 3.2 | - | - | - | 3.6 | 3.2 | - | 9.4 | 22.0 | 3.0 | 3.2 | - | 2.0 | ||
|
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.
In September 2017 this summary was broadened to include 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 Wednesday 1 August 2018. 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
