Monday, 3 December 2018 - Monthly Climate Summary for Greater Perth - Product code IDCKGC11L0
Greater Perth in November 2018: dry with mild days and cool nights
Rainfall in November 2018 was very much below average across Perth, and it was the driest November on record at Perth Metro and driest for 61 years for the city. Daytime temperatures were generally mild while overnight temperatures were mostly cool.
Well below average rainfall across Perth
- It was a very dry month across Perth, with most sites recording less than 10 mm monthly rainfall totals
- Perth Metro recorded 3.2 mm in total, which was the driest November in its 25 years of record; the previous record was 4.4 mm on November 1999
- It was the driest November for 61 years for the Perth city (Perth Regional Office and Perth Metro records combined) when 1.6 mm was recorded in November 1957
- Rottnest Island also recorded 3.2 mm in November, which was its driest November for 24 years
- Most sites recorded light falls on the 5th, 6th, 23rd and 26th from weak cold fronts and troughs
Mild daytime temperatures and cool overnight temperatures
- Both mean maximum and minimum temperatures were below average across Perth
- Perth Metro recorded mean maximum and minimum temperatures of 25.2 °C and 13.5 °C respectively, which was its coolest November in 10 years, since 23.6 °C and 12.4 °C in November 2008
- Rottnest Island equalled its coolest November on record with 2005, and Swanbourne had its record lo, in terms of mean maximum temperature
Perth Metro
- Total rainfall for Perth Metro was 3.2 mm, which is 15% of the long-term average of 21.8 mm
- The mean daily maximum temperature for Perth Metro was 25.2 °C, which is 1.6 °C below the long-term average of 26.8 °C
- The warmest day was 35.9 °C on the 16th, and the coolest day was on the 6th when the temperature reached 19.6 °C
- The mean daily minimum temperature for Perth Metro was 13.5 °C, which is 0.9 °C below the long-term average of 14.4 °C
- The coldest morning was 8.0 °C on the 7th, and the warmest morning was on the 17th when the minimum temperature was 18.3 °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 November 2018 | |
|---|---|
| Hottest day | 37.1 °C at Pearce RAAF on the 16th |
| Warmest days on average | 27.3 °C at Pearce RAAF |
| Coolest days on average |
21.1 °C at Rottnest Island 22.7 °C at Swanbourne |
| Coldest day | 15.8 °C at Bickley on the 5th |
| Coldest night | 4.5 °C at Millendon (Swan Valley) on the 8th |
| Coolest nights on average | 10.5 °C at Bickley |
| Warmest nights on average |
14.8 °C at Rottnest Island 14.1 °C at Mandurah |
| Warmest night | 20.6 °C at Mandurah on the 17th |
| Warmest on average overall | 19.7 °C at Pearce RAAF |
| Coolest on average overall |
17.0 °C at Bickley |
| Wettest overall | 16.7 mm at Huntly |
| Driest overall | 1.2 mm at Werribee |
| Wettest day | 6.8 mm at Huntly on the 23rd |
| Strongest wind gust | 76 km/h at Rottnest Island on the 29th |
Extremes Maps Records Summaries Daily observations Important notes the top
| Record lowest November total rainfall | |||||
|---|---|---|---|---|---|
|
New record (mm) |
Old record |
Years of record |
Average for November |
||
| Perth Metro | 3.2 | 4.4 | in 1999 | 26 | 21.8 |
| Lowest November total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (mm) |
Most recent lower |
Average for November |
|||
| Rottnest Island | 3.2 | 2.2 | in 1994 | 18.8 | |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported
| Record lowest November mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for November |
||
| Rottnest Island | 21.1 | = 21.1 | in 2005 | 28 | 23.2 |
| Swanbourne | 22.7 | 22.8 | in 2008 | 25 | 25.5 |
Extremes Maps Records Summaries Daily observations Important notes the top
| Summary statistics for November 2018 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for November 2018 |
Diff from average |
Highest for November 2018 |
Mean for November 2018 |
Diff from average |
Lowest for November 2018 |
Total for November 2018 |
Average for November |
Rank of November 2018 |
Fraction of November average |
|||
| Bickley | 23.5 | -1.6 | 32.4 | 16th | 10.5 | -1.4 | 5.4 | 7th | 8.8 | 40.9 | low | 22% |
| Garden Island HSF | 21.3 | -2.6 | 28.2 | 22nd | 14.6 | -1.2 | 9.9 | 7th | 3.2 | 20.8 | low | 15% |
| Jandakot Aero | 24.8 | -1.6 | 35.0 | 16th | 12.1 | -0.6 | 6.3 | 7th | 11.0 | 27.3 | low | 40% |
| Mandurah | 23.1 | -1.8 | 33.6 | 16th | 14.1 | -1.6 | 9.0 | 7th | 8.0 | 22.7 | low | 35% |
| Millendon (Swan Valley) | 26.9 | 36.2 | 16th | 12.0 | 4.5 | 8th | ||||||
| Pearce RAAF | 27.3 | -0.1 | 37.1 | 16th | 12.0 | -0.6 | 5.2 | 8th | 3.8 | 22.5 | low | 17% |
| Perth Airport | 25.7 | -0.3 | 36.0 | 16th | 12.5 | -0.3 | 6.1 | 8th | 4.8 | 25.6 | v low | 19% |
| Perth Metro | 25.2 | -1.6 | 35.9 | 16th | 13.5 | -0.9 | 8.0 | 7th | 3.2 | 21.8 | lowest | 15% |
| Rottnest Island | 21.1 | -2.1 | 25.2 | 16th | 14.8 | -1.2 | 10.3 | 7th | 3.2 | 18.8 | v low | 17% |
| Swanbourne | 22.7 | -2.8 | 31.9 | 9th | 13.6 | -1.2 | 8.5 | 7th | 5.0 | 22.6 | low | 22% |
Extremes Maps Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for November 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 | |
| Bickley | 18.8 | 21.4 | 25.2 | 20.1 | 15.8 | 16.8 | 22.3 | 26.9 | 31.1 | 26.3 | 22.4 | 21.4 | 25.1 | 28.9 | 32.2 | 32.4 | 24.2 | 21.2 | 18.7 | 20.6 | 24.8 | 25.6 | 22.1 | 21.8 | 18.9 | 20.9 | 24.1 | 26.1 | 26.0 | 22.4 |
| Garden Island HSF | 20.3 | 19.4 | 20.9 | 21.2 | 17.7 | 16.9 | 18.6 | 21.4 | 26.8 | 21.2 | 19.2 | 21.1 | 21.6 | 21.9 | 23.9 | 27.1 | 23.2 | 23.0 | 18.9 | 19.0 | 21.4 | 28.2 | 20.1 | 21.7 | 22.3 | 20.4 | 23.0 | 20.1 | 20.3 | 18.9 |
| Gosnells City | 26.5 | 23.1 | 26.8 | 19.0 | 19.5 | 23.5 | 34.2 | 28.0 | 24.0 | 23.7 | 26.4 | 34.2 | 35.6 | 25.5 | 21.0 | 28.8 | 23.6 | 22.1 | 23.7 | 28.1 | ||||||||||
| Jandakot Aero | 21.6 | 21.8 | 26.2 | 21.6 | 19.7 | 18.9 | 22.0 | 28.3 | 34.0 | 25.8 | 22.8 | 24.1 | 25.1 | 29.9 | 32.8 | 35.0 | 24.1 | 23.6 | 21.3 | 21.0 | 24.8 | 29.2 | 23.2 | 23.0 | 21.5 | 22.7 | 25.7 | 25.5 | 26.2 | 22.7 |
| Karnet | 18.4 | 25.2 | 16.0 | 16.8 | 21.5 | 30.0 | 27.0 | 22.2 | 20.7 | 24.7 | 31.3 | 25.0 | 21.3 | 19.2 | 24.5 | 22.5 | 21.0 | 19.0 | 20.3 | 25.2 | 22.8 | |||||||||
| Mandurah | 20.5 | 20.6 | 23.6 | 21.0 | 19.2 | 18.4 | 18.9 | 24.1 | 31.5 | 24.7 | 22.3 | 21.3 | 22.8 | 26.8 | 29.1 | 33.6 | 23.0 | 22.1 | 20.6 | 19.8 | 23.1 | 27.9 | 22.7 | 22.2 | 20.5 | 21.4 | 23.2 | 22.9 | 23.5 | 21.1 |
| Millendon (Swan Valley) | 22.5 | 20.0 | 25.6 | 30.2 | 35.4 | 28.7 | 24.4 | 24.6 | 27.6 | 32.4 | 34.7 | 36.2 | 25.8 | 24.3 | 22.2 | 22.7 | 27.3 | 29.8 | 25.3 | 24.6 | 22.8 | 23.8 | 27.3 | 28.0 | 27.8 | 24.3 | ||||
| Pearce RAAF | 22.5 | 25.8 | 27.9 | 23.6 | 20.8 | 20.7 | 25.6 | 30.4 | 36.2 | 29.2 | 24.9 | 26.3 | 28.4 | 32.9 | 35.6 | 37.1 | 26.6 | 25.5 | 23.0 | 23.4 | 28.5 | 32.6 | 26.2 | 25.3 | 24.8 | 24.4 | 28.5 | 28.8 | 28.3 | 25.1 |
| Perth Airport | 21.5 | 23.2 | 26.5 | 21.9 | 19.5 | 19.7 | 23.9 | 29.2 | 34.8 | 27.0 | 23.8 | 24.3 | 25.8 | 31.3 | 34.5 | 36.0 | 25.4 | 24.0 | 21.8 | 22.2 | 26.9 | 29.9 | 24.9 | 23.4 | 22.6 | 23.6 | 27.1 | 26.7 | 27.4 | 23.4 |
| Perth Metro | 21.8 | 22.6 | 26.1 | 22.0 | 19.7 | 19.6 | 23.6 | 27.3 | 33.8 | 25.8 | 23.4 | 24.2 | 26.0 | 31.5 | 32.3 | 35.9 | 24.5 | 24.1 | 21.2 | 21.1 | 26.3 | 29.6 | 24.2 | 23.4 | 22.9 | 23.2 | 26.8 | 25.8 | 25.0 | 22.5 |
| Rottnest Island | 21.0 | 19.6 | 20.7 | 21.3 | 18.2 | 17.6 | 19.2 | 20.6 | 22.9 | 21.4 | 20.1 | 21.5 | 20.6 | 22.4 | 23.7 | 25.2 | 22.1 | 22.7 | 20.3 | 18.4 | 20.7 | 22.5 | 21.4 | 21.3 | 22.0 | 20.4 | 23.2 | 21.1 | 21.3 | 19.6 |
| Swanbourne | 20.9 | 20.3 | 21.9 | 21.8 | 19.2 | 18.2 | 20.7 | 24.2 | 31.9 | 22.1 | 20.7 | 21.8 | 21.7 | 25.8 | 25.8 | 31.1 | 22.2 | 23.8 | 20.7 | 19.1 | 23.8 | 27.8 | 21.9 | 22.4 | 21.7 | 21.1 | 24.4 | 22.3 | 22.6 | 20.3 |
|
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 November 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 | |
| Bickley | 10.4 | 8.9 | 12.1 | 9.8 | 9.3 | 7.1 | 5.4 | 7.2 | 10.5 | 13.1 | 13.9 | 9.4 | 12.5 | 11.7 | 15.4 | 13.8 | 16.7 | 13.9 | 9.2 | 5.8 | 8.3 | 12.3 | 12.0 | 10.8 | 8.5 | 6.3 | 8.0 | 10.0 | 11.5 | 9.9 |
| Garden Island HSF | 15.4 | 14.2 | 15.5 | 14.3 | 14.7 | 11.2 | 9.9 | 12.3 | 14.5 | 16.6 | 17.0 | 14.4 | 15.9 | 15.0 | 18.2 | 18.3 | 19.0 | 17.4 | 13.9 | 10.8 | 11.9 | 17.3 | 16.3 | 14.3 | 13.8 | 11.3 | 12.6 | 14.3 | 15.5 | 12.6 |
| Gosnells City | 11.5 | 14.1 | 11.7 | 10.5 | 10.1 | 9.5 | 18.0 | 15.0 | 11.0 | 15.2 | 14.7 | 16.1 | 18.5 | 17.4 | 7.3 | 12.1 | 10.1 | 9.4 | 14.0 | |||||||||||
| Jandakot Aero | 13.5 | 9.4 | 13.6 | 10.7 | 12.8 | 10.0 | 6.3 | 7.8 | 13.9 | 14.6 | 14.5 | 11.2 | 14.7 | 13.2 | 15.0 | 17.6 | 18.3 | 15.8 | 13.3 | 7.3 | 9.1 | 14.5 | 13.1 | 12.0 | 6.5 | 7.7 | 11.5 | 11.5 | 12.2 | 11.9 |
| Karnet | 10.7 | 7.3 | 9.0 | 7.5 | 5.2 | 8.1 | 12.8 | 13.1 | 9.4 | 13.6 | 11.5 | 14.0 | 14.2 | 10.4 | 6.4 | 13.6 | 9.5 | 7.1 | 9.0 | 10.0 | ||||||||||
| Mandurah | 14.9 | 13.7 | 14.5 | 13.9 | 13.9 | 10.9 | 9.0 | 11.4 | 13.8 | 16.2 | 16.9 | 14.3 | 15.8 | 14.7 | 17.8 | 17.5 | 20.6 | 17.4 | 13.8 | 10.0 | 11.8 | 16.8 | 15.1 | 13.3 | 11.9 | 11.1 | 12.0 | 13.8 | 14.6 | 12.3 |
| Millendon (Swan Valley) | 13.8 | 9.6 | 7.4 | 4.5 | 14.4 | 15.2 | 14.0 | 9.5 | 16.0 | 12.7 | 13.7 | 17.8 | 17.9 | 15.5 | 13.5 | 8.4 | 10.1 | 14.4 | 13.6 | 10.3 | 7.2 | 7.4 | 12.1 | 7.9 | 10.7 | 13.3 | ||||
| Pearce RAAF | 13.5 | 9.4 | 11.2 | 13.5 | 12.2 | 9.4 | 7.6 | 5.2 | 13.9 | 16.9 | 14.9 | 9.8 | 15.9 | 13.4 | 12.8 | 18.4 | 17.8 | 16.2 | 13.6 | 7.8 | 9.8 | 15.9 | 14.6 | 9.3 | 6.3 | 7.8 | 10.6 | 8.6 | 10.7 | 13.3 |
| Perth Airport | 13.7 | 9.4 | 13.9 | 12.3 | 13.3 | 9.3 | 9.0 | 6.1 | 14.4 | 13.5 | 13.7 | 10.5 | 16.1 | 14.0 | 14.1 | 17.5 | 17.8 | 16.9 | 13.5 | 8.9 | 11.9 | 16.4 | 13.4 | 12.2 | 7.5 | 8.6 | 12.1 | 9.5 | 11.9 | 13.1 |
| Perth Metro | 14.1 | 11.8 | 14.6 | 13.3 | 14.2 | 11.0 | 8.0 | 9.9 | 14.9 | 16.7 | 14.9 | 12.8 | 16.0 | 13.7 | 15.1 | 17.9 | 18.3 | 17.0 | 14.0 | 9.5 | 11.5 | 17.0 | 13.9 | 13.5 | 9.6 | 9.9 | 12.1 | 13.1 | 13.3 | 13.2 |
| Rottnest Island | 15.0 | 14.9 | 15.8 | 14.7 | 13.7 | 11.2 | 10.3 | 13.1 | 14.9 | 17.0 | 16.4 | 15.0 | 16.0 | 16.1 | 17.8 | 18.3 | 18.4 | 16.5 | 13.5 | 11.6 | 12.3 | 16.5 | 16.6 | 15.0 | 14.4 | 12.1 | 13.4 | 15.2 | 15.3 | 13.5 |
| Swanbourne | 13.9 | 12.6 | 15.1 | 13.4 | 14.2 | 10.0 | 8.5 | 10.0 | 14.6 | 15.0 | 15.2 | 13.7 | 15.7 | 14.7 | 17.1 | 18.3 | 18.7 | 16.6 | 13.8 | 9.4 | 11.3 | 16.6 | 14.8 | 12.9 | 11.7 | 9.8 | 12.6 | 12.1 | 13.1 | 12.8 |
|
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 November 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 | ||
| Anketell | - | - | - | - | 1.8 | 2.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.8 | - | - | - | - | - | - | - | |
| Bickley | - | - | - | - | 4.4 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | 0.8 | - | - | - | 1.2 | - | - | 2.2 | - | - | - | - | |
| Bungendore | - | - | - | - | 2.8 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3.0 | - | - | 1.0 | - | - | - | - | |
| Chidlow | - | - | - | → | 1.1 | ||||||||||||||||||||||||||
| Garden Island HSF | - | - | - | - | 0.8 | 0.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | 0.2 | - | 1.6 | - | - | - | - | |
| Gidgegannup | - | - | - | - | 3.2 | - | - | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.8 | - | - | - | - | |
| Gosnells City | - | - | - | - | - | - | - | - | - | - | 2.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| Huntly | - | - | - | - | 5.4 | 0.5 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 6.8 | - | - | 4.0 | - | - | - | - | |
| Jandakot Aero | - | - | - | - | 4.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 6.6 | - | - | - | - | - | - | - | |
| Jarrahdale | - | - | - | - | 6.0 | 0.4 | 0.2 | - | 0.2 | - | - | - | - | - | 0.2 | - | - | - | 1.0 | 0.2 | - | - | 2.2 | - | - | 6.2 | - | - | - | - | |
| Karnet | - | - | → | → | 4.4 | 0.8 | - | - | - | - | - | - | - | - | - | - | - | 0.8 | - | - | - | - | - | - | 3.4 | - | - | ||||
| Karragullen North | - | - | - | - | 4.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.2 | - | - | 2.8 | |||||
| Maida Vale | - | - | - | - | 2.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.6 | - | - | 1.4 | |||||
| Mandurah | - | - | - | - | 1.4 | 0.6 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.0 | - | - | 4.0 | - | - | - | - | |
| Midland | - | - | - | - | - | → | → | 1.0 | |||||||||||||||||||||||
| Millendon (Swan Valley) | - | - | - | - | 1.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |||||||
| Mount Solus | - | - | 0.8 | - | 3.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.4 | - | - | - | 3.2 | - | - | 2.2 | 0.2 | - | - | - | |
| Muchea | - | - | - | - | 0.6 | - | - | - | - | 2.4 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| Mundaring | - | - | - | - | 2.4 | 0.2 | - | - | - | - | 2.8 | - | - | - | - | - | - | - | - | - | - | - | 0.8 | - | - | 4.0 | |||||
| Noble Falls | 1.4 | 2.0 | 0.2 | 0.4 | |||||||||||||||||||||||||||
| Pearce RAAF | - | - | - | - | 0.6 | - | - | - | - | 2.8 | - | - | - | - | - | - | - | - | - | - | - | 0.4 | - | - | - | - | - | - | - | ||
| Perth Airport | - | - | - | - | 2.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.0 | - | - | 1.6 | - | - | - | - | |
| Perth Metro | - | - | - | - | 1.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.4 | - | - | - | - | - | - | - | |
| Pinjarra Refinery | - | - | - | - | 3.0 | 0.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3.2 | - | - | 5.2 | - | - | - | - | |
| Pinjarra South | - | - | - | - | 1.6 | 1.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.0 | - | - | 2.4 | - | - | - | - | |
| Roleystone | - | - | - | - | 4.0 | 0.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4.6 | - | - | 1.4 | |||||
| Rottnest Island | - | - | - | - | 1.4 | 0.8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.0 | - | - | - | - | |
| Serpentine | - | - | - | - | 4.0 | 0.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.4 | - | - | 1.8 | - | - | - | - | |
| Swanbourne | - | - | - | - | 1.8 | 0.6 | - | - | - | - | - | - | - | - | - | - | - | - | 0.4 | - | - | - | 2.2 | - | - | - | - | - | - | - | |
| Tamala Park (Mindarie) | - | - | - | - | - | 1.8 | - | - | - | 2.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.8 | - | - | - | - | - | - | |
| Wanneroo | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | → | → | 1.4 | |||||
| Werribee | - | - | - | - | 0.4 | - | - | - | - | 0.6 | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | - | - | - | - | - | - | - | |
| Whiteman Park | - | - | - | - | 3.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.8 | ||||||||
|
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 Monday 3 December 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
