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Sunday, 1 December 2013 - Monthly Climate Summary for Perth - Product code IDCKGC11L0
Perth in November 2013: Very warm and dry month
- Rainfall: below average
- Maximum temperature: very much above average, second highest at Perth Metro
- Minimum temperature: very much above average, warmest on record
for some sites
Details Extremes Records Summaries Important notes the top
Rainfall
Rainfall across the Perth metropolitan area during November 2013 was below average. Monthly rainfall totals were generally less than 10 mm on the islands and on the Swan coatal plain, but were generally up to 20 mm in the hills. Jarradale received the highest monthly total in Perth with 21.0 mm, whilst Medina Research Centre recorded on ly 1.6 mm, its driest November in 31 years of record.
November 2013 was dominated by sunny days and only a few rainfall events. A trough near the west coast brought showers and thunderstorms to southwest WA on the 4th, but only southern Perth suburbs recorded any measurable rainfall with daily totals less than 1 mm. A weak cold front brushed the southwest corner of the State on the 24th and showers were reported across the metropolitan area, but most sites registered daily totals of less than 1 mm. Weak cold fronts moved through the southwest of the State on the 29th and 30th bringing widespread rainfall to the metropolitan area, with moderate falls in the hills. This was the first measurable rainfall for the month at some sites.
Perth Metro recorded 10.2 mm of rainfall in November 2013, and this all fell on the last day of the month. The total for the month was below the long term November average of 22.4 mm on 6.3 rain days. Up until the rainfall recorded in the 24 hours to 9am on the 30th, Perth Metro had recorded 40 days without measureable rainfall, its longest spring dry spell since records commenced in 1876. Also, as a result of the rainfall on the last day of the month, Perth Metro avoided its second rain-free November in its 137 year recording history.
Maximum temperature
Mean maximum temperatures in November 2013 were very much above average, being 2 șC to 3 șC warmer than normal on the islands and in the hills, and 3 șC to 4 șC warmer than normal in the eastern suburbs. Mean maxima ranged from the mid-twenties on the off-shore islands, to the high twenties and low thirties across the coastal plain and in the hills, and were essentially equivalent to temperatures normally recorded in December. Pearce RAAF experienced its warmest November in 52 years of record with a mean maximum of 30.6 șC, exceeding its previous record of 30.4 șC set in November 2010.
Apart from mild days on the 5th and 6th, 18th and 19th, 24th and 25th, and 29th and 30th, most days in November 2013 in the Perth metropolitan area were warm to hot, with the hottest days being the 10th and 16th. A maximum of 38.8 șC at Pearce RAAF on the 16th was the highest temperature recorded in the metropolitan area during the month, whilst Bickley recorded the lowest maximum of 19.3 șC on the 30th.
Perth Metro's mean maximum temperature in November 2013 was 29.1 șC, the second warmest November in 116 years of record and only behind the record of 29.6 șC set in November 2010. Daily maxima at Perth Metro ranged from a mild of 23.2 șC on the 30th to a very hot 37.2 șC on the 10th.
Minimum temperature
Mean minimum temperatures in November 2013 in Perth were very much above average, being 1 șC to 2 șC warmer than normal through much of the metropolitan area, but between 2 șC and 3 °C in the eastern suburbs. Mean minima ranged from the low-to-mid teens in the hills, to the mid-teens on the coatal plain and islands. Pearce RAAF, Perth Airport, and Jandakot Aerodrome all recorded their warmest November on record in terms of overnight temperatures.
Nights were mostly cool to mild with a number of warm nights on the 4th, 16th, 22nd, and 28th. A number of sites recorded their warmest night of the month on the 16th and Pearce RAAF recorded a minimum of 22.9 °C that day, the highest minimum in November 2013 in the Perth metropolitan area. Cold nights were reported on the 6th, 11th, 19th, and 25th, with most sites recording their coldest night for the month on the 19th. Bickley registered a minimum of 8.4 °C on the 19th, the lowest temperature in Perth for the month.
Perth Metro's mean daily minimum temperature in November 2013 was 15.9 °C, which was well above the long term average of 14.2 °C. Daily minima during November 2013 ranged from a cold 12.1 °C on the 19th to a warm 20.3 °C on the 22nd and 28th.
Sunshine & Phenomena
Perth recorded an average daily sunshine of 11.1 hours in November 2013, which is above the long-term mean of 10.6 hours per day.
Further information
Western Australia Climate Services CentreBureau of Meteorology
Phone (08) 9263 2222
Email climatedata@bom.gov.au
| Extremes in November 2013 | |
|---|---|
| Hottest day | 38.8 °C at Pearce
RAAF on the 16th |
| Warmest days on average | 30.6 °C at Pearce
RAAF |
| Coolest days on average | 25.3 °C at Rottnest
Island 27.1 °C at Bickley |
| Coldest day | 19.3 °C at Bickley
on the 30th |
| Coldest night | 8.4 °C at Bickley
on the 19th |
| Coolest nights on average | 13.1 °C at Bickley |
| Warmest nights on average | 17.2 °C at Rottnest
Island 16.1 °C at Champion Lakes |
| Warmest night | 22.9 °C at Pearce
RAAF on the 16th |
| Wettest overall | 21.0 mm at Jarrahdale |
| Wettest day | 18.4 mm at Jarrahdale
on the 30th |
| Highest wind gust | 83 km/h at Rottnest
Island on the 12th |
Extremes Records Summaries Important notes the top
| Lowest total November rainfall for at least 10 years | |||||
|---|---|---|---|---|---|
| Total rainfall for November 2013 (mm) |
Most recent November at least this dry |
Years since drier |
Average for November |
||
| Swanbourne | 1.6 | 1.0 | in 1999 | 14 | 24.5 |
| Record highest November mean daily maximum temperature | |||||
|---|---|---|---|---|---|
| Mean daily maximum temperature for November 2013 (°C) |
Previous warmest for November |
Years of record |
Average for November |
||
| Pearce RAAF | 30.6 | 30.4 | in 2010 | 52 | 27.1 |
| Record highest November mean daily minimum temperature | |||||
|---|---|---|---|---|---|
| Mean daily minimum temperature for November 2013 (°C) |
Previous warmest for November |
Years of record |
Average for November |
||
| Perth Airport | 15.1 | 14.7 | in 1994 | 69 | 12.7 |
| Pearce RAAF | 15.1 | 14.4 | in 1982 | 53 | 12.5 |
| Jandakot Aero | 14.9 | 14.1 | in 1989 | 23 | 12.5 |
| Record highest November mean temperature | |||||
|---|---|---|---|---|---|
| Mean daily temperature for November 2013 (°C) |
Previous warmest for November |
Years of record |
Average for November |
||
| Perth Airport | 22.3 | = 22.3 | in 2010 | 69 | 19.3 |
| Pearce RAAF | 22.9 | 22.3 | in 2010 | 52 | 19.8 |
| Jandakot Aero | 21.9 | = 21.9 | in 2010 | 23 | 19.3 |
| Perth Metro | 22.5 | = 22.5 | in 2010 | 19 | 20.3 |
Extremes Records Summaries Important notes the top
| Summary statistics for November 2013 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for November (°C) |
Minimum temperatures for November (°C) |
Rainfall for November (millimetres) |
||||||||||
| Mean for November 2013 |
Diff from average |
Highest for November 2013 |
Mean for November 2013 |
Diff from average |
Lowest for November 2013 |
Total for November 2013 |
Average for November |
Rank of November 2013 |
Fraction of November average |
|||
| Bickley | 27.1 | +2.4 | 34.8 | 16th | 13.1 | +1.3 | 8.4 | 19th | 18.0 | 43.3 | low | 42% |
| Champion Lakes | 28.3 | 36.1 | 16th | 16.1 | 11.6 | 25th | 11.4 | |||||
| Garden Island HSF | 26.2 | +2.5 | 36.0 | 10th | 17.0 | +1.4 | 12.6 | 19th | 8.8 | 23.9 | v low | 37% |
| Gosnells City | 30.2 | +2.9 | 38.1 | 16th | 15.9 | +1.6 | 12.0 | 19th | 10.4 | 29.3 | low | 35% |
| Jandakot Aero | 28.9 | +2.8 | 37.0 | 10th | 14.9 | +2.4 | 8.5 | 25th | 9.4 | 29.4 | low | 32% |
| Medina Research Centre | 29.0 | +3.1 | 38.1 | 10th | 15.0 | +1.7 | 11.1 | 25th | 1.6 | 31.6 | lowest | 5% |
| Pearce RAAF | 30.6 | +3.5 | 38.8 | 16th | 15.1 | +2.6 | 9.9 | 26th | 7.6 | 23.7 | low | 32% |
| Perth Airport | 29.5 | +3.7 | 37.2 | 16th | 15.1 | +2.4 | 9.2 | 25th | 6.0 | 26.6 | low | 23% |
| Perth Metro | 29.1 | +2.7 | 37.2 | 10th | 15.9 | +1.7 | 12.1 | 19th | 10.2 | 22.4 | low | 46% |
| Rottnest Island | 25.3 | +2.3 | 35.7 | 10th | 17.2 | +1.4 | 12.8 | 19th | 5.8 | 17.2 | low | 34% |
| Swanbourne | 28.4 | +3.2 | 37.2 | 10th | 16.0 | +1.4 | 11.7 | 19th | 1.6 | 24.5 | v low | 7% |
Extremes Records Summaries Important notes the top
| Daily maximum temperature | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Central Coast (09) | 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 | 28.1 | 26.0 | 29.7 | 31.1 | 21.7 | 23.1 | 24.8 | 26.2 | 30.5 | 33.5 | 30.9 | 28.3 | 27.3 | 29.9 | 30.4 | 34.8 | 27.8 | 22.2 | 22.2 | 25.2 | 28.9 | 29.5 | 25.7 | 22.6 | 23.6 | 28.3 | 30.5 | 29.6 | 21.4 | 19.3 |
| Champion Lakes | 27.2 | 28.2 | 31.8 | 31.3 | 22.7 | 23.8 | 26.7 | 28.0 | 31.9 | 35.7 | 30.7 | 28.5 | 29.3 | 31.9 | 32.4 | 36.1 | 28.3 | 23.5 | 24.5 | 27.0 | 30.9 | 30.9 | 25.5 | 23.6 | 24.9 | 28.3 | 31.1 | 29.1 | 23.3 | 21.8 |
| Garden Island HSF | 20.9 | 27.4 | 31.0 | 29.1 | 20.4 | 20.5 | 23.7 | 26.1 | 27.4 | 36.0 | 21.7 | 21.7 | 22.1 | 30.9 | 33.7 | 34.1 | 24.2 | 24.0 | 26.4 | 28.5 | 30.0 | 31.3 | 25.2 | 23.5 | 22.7 | 24.0 | 26.0 | 27.0 | 23.2 | 22.6 |
| Gosnells City | 29.5 | 29.4 | 33.2 | 26.0 | 27.8 | 29.9 | 33.7 | 38.0 | 32.9 | 30.5 | 32.9 | 34.0 | 38.1 | 30.2 | 24.5 | 25.8 | 28.5 | 32.4 | 33.5 | 29.0 | 24.6 | 26.0 | 31.0 | 32.0 | 32.0 | 25.4 | 23.6 | |||
| Jandakot Aero | 26.9 | 29.3 | 32.3 | 32.2 | 23.7 | 24.8 | 27.2 | 28.1 | 32.2 | 37.0 | 30.1 | 28.0 | 30.0 | 32.7 | 33.6 | 36.9 | 27.2 | 24.9 | 25.4 | 27.9 | 31.6 | 31.9 | 27.5 | 25.1 | 25.2 | 27.8 | 30.0 | 30.2 | 24.7 | 23.1 |
| Medina Research Centre | 25.0 | 29.0 | 32.0 | 33.2 | 23.2 | 27.0 | 29.5 | 31.0 | 38.1 | 27.7 | 27.6 | 29.2 | 32.6 | 27.1 | 24.5 | 26.3 | 28.5 | 32.4 | 32.2 | 28.3 | 24.6 | 27.1 | 30.1 | 30.1 | ||||||
| Pearce RAAF | 28.9 | 29.1 | 33.2 | 35.4 | 25.0 | 26.1 | 28.3 | 29.6 | 34.1 | 37.5 | 34.5 | 30.8 | 31.5 | 33.4 | 34.8 | 38.8 | 29.7 | 25.4 | 26.2 | 29.5 | 32.7 | 32.4 | 29.5 | 26.9 | 27.3 | 32.2 | 32.5 | 32.6 | 25.9 | 25.2 |
| Perth Airport | 27.7 | 29.8 | 33.2 | 33.2 | 24.1 | 25.0 | 27.5 | 29.5 | 33.1 | 36.9 | 31.5 | 29.4 | 30.7 | 32.8 | 33.6 | 37.2 | 28.9 | 24.7 | 25.6 | 28.2 | 31.5 | 32.0 | 27.6 | 25.2 | 25.5 | 29.5 | 31.0 | 31.6 | 25.1 | 23.3 |
| Perth Metro | 27.0 | 29.8 | 33.4 | 32.6 | 24.2 | 24.4 | 27.1 | 29.2 | 33.2 | 37.2 | 30.7 | 27.7 | 29.3 | 32.6 | 33.7 | 37.1 | 28.3 | 25.2 | 25.7 | 28.3 | 31.9 | 31.1 | 27.0 | 24.9 | 25.2 | 29.3 | 29.6 | 30.2 | 24.4 | 23.2 |
| Rottnest Island | 21.9 | 24.1 | 29.0 | 30.1 | 22.0 | 21.3 | 22.2 | 24.9 | 26.1 | 35.7 | 22.7 | 22.7 | 22.6 | 24.7 | 31.3 | 33.0 | 24.2 | 23.7 | 24.9 | 27.1 | 29.0 | 27.9 | 24.8 | 23.5 | 22.2 | 23.3 | 24.8 | 24.6 | 22.2 | 22.4 |
| Swanbourne | 25.4 | 30.3 | 33.8 | 30.6 | 23.2 | 23.1 | 27.4 | 29.0 | 31.5 | 37.2 | 25.8 | 25.0 | 25.9 | 32.8 | 34.7 | 35.8 | 26.1 | 26.7 | 26.6 | 29.5 | 33.8 | 31.2 | 26.8 | 25.4 | 24.2 | 26.2 | 27.7 | 27.3 | 24.4 | 23.7 |
This table is very wide; you may have to scroll sideways to see all the days, and you may need to set the paper to 'landscape' to print.
| The temperatures in this table are coloured by 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 difference from average |
Extremes Records Summaries Important notes the top
| Daily minimum temperature | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Central Coast (09) | 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 | 12.5 | 14.0 | 10.9 | 16.8 | 15.5 | 10.9 | 12.1 | 9.8 | 11.5 | 13.4 | 15.7 | 14.6 | 11.9 | 12.6 | 12.1 | 15.7 | 16.9 | 13.9 | 8.4 | 9.3 | 11.8 | 16.4 | 13.7 | 14.8 | 10.1 | 11.2 | 13.1 | 16.7 | 14.9 | 12.2 |
| Champion Lakes | 13.9 | 17.3 | 15.0 | 20.0 | 17.9 | 13.4 | 15.2 | 13.9 | 15.7 | 17.9 | 13.8 | 14.2 | 12.8 | 15.9 | 16.0 | 21.3 | 19.2 | 17.4 | 12.3 | 13.3 | 16.2 | 20.4 | 17.1 | 16.6 | 11.6 | 14.4 | 16.3 | 20.8 | 18.0 | 15.0 |
| Garden Island HSF | 17.3 | 16.3 | 15.1 | 21.0 | 17.1 | 15.4 | 14.2 | 14.7 | 15.5 | 18.7 | 17.8 | 17.0 | 16.1 | 16.6 | 16.4 | 21.4 | 19.9 | 17.2 | 12.6 | 13.6 | 17.1 | 20.2 | 17.4 | 19.0 | 15.5 | 14.7 | 16.8 | 20.8 | 18.4 | 15.7 |
| Gosnells City | 14.2 | 17.2 | 15.0 | 18.2 | 15.2 | 14.6 | 16.5 | 17.2 | 13.7 | 14.1 | 12.9 | 16.1 | 21.6 | 12.0 | 13.0 | 16.4 | 21.1 | 17.0 | 17.0 | 12.2 | 13.6 | 16.0 | 20.6 | 18.5 | 14.8 | |||||
| Jandakot Aero | 13.7 | 15.8 | 14.6 | 19.5 | 17.4 | 10.9 | 13.5 | 13.7 | 12.9 | 16.0 | 10.2 | 14.1 | 12.6 | 13.3 | 15.6 | 21.2 | 17.7 | 14.9 | 11.2 | 13.1 | 15.5 | 20.1 | 14.0 | 17.3 | 8.5 | 11.1 | 14.9 | 19.6 | 17.5 | 15.1 |
| Medina Research Centre | 14.5 | 16.0 | 15.0 | 19.1 | 12.5 | 13.6 | 13.9 | 15.2 | 17.6 | 11.2 | 15.0 | 13.6 | 11.6 | 16.1 | 16.0 | 11.7 | 13.0 | 15.5 | 19.9 | 14.4 | 18.7 | 11.1 | 11.4 | 14.6 | 20.2 | 18.0 | ||||
| Pearce RAAF | 13.1 | 15.9 | 15.5 | 20.7 | 18.2 | 11.9 | 14.2 | 15.2 | 14.1 | 14.9 | 10.2 | 12.2 | 12.8 | 15.7 | 16.6 | 22.9 | 17.7 | 14.7 | 12.5 | 13.6 | 18.0 | 20.9 | 14.1 | 15.4 | 10.6 | 9.9 | 14.1 | 17.0 | 16.5 | 14.2 |
| Perth Airport | 14.4 | 16.6 | 14.8 | 19.4 | 18.3 | 12.4 | 14.2 | 14.1 | 12.4 | 15.3 | 10.7 | 15.1 | 13.9 | 15.1 | 15.8 | 20.2 | 16.9 | 15.4 | 11.6 | 12.9 | 15.7 | 19.9 | 14.2 | 17.9 | 9.2 | 11.1 | 16.3 | 19.1 | 16.7 | 14.4 |
| Perth Metro | 15.4 | 16.5 | 15.0 | 19.7 | 18.1 | 13.3 | 14.1 | 14.2 | 14.2 | 17.0 | 13.5 | 15.9 | 14.4 | 15.3 | 16.1 | 19.6 | 20.0 | 17.5 | 12.1 | 13.0 | 15.6 | 20.3 | 16.6 | 17.6 | 12.4 | 12.8 | 15.5 | 20.3 | 17.5 | 14.5 |
| Rottnest Island | 17.5 | 16.6 | 15.4 | 19.9 | 17.6 | 15.9 | 14.6 | 16.1 | 17.4 | 19.2 | 18.3 | 17.1 | 15.8 | 16.6 | 16.9 | 21.5 | 19.5 | 17.2 | 12.8 | 13.9 | 17.7 | 20.9 | 18.1 | 17.8 | 15.6 | 15.7 | 17.0 | 19.5 | 18.2 | 14.7 |
| Swanbourne | 15.6 | 16.0 | 15.3 | 19.2 | 17.5 | 13.0 | 13.4 | 14.7 | 15.6 | 18.5 | 15.8 | 15.9 | 13.4 | 13.5 | 16.7 | 21.0 | 20.0 | 16.1 | 11.7 | 13.2 | 16.3 | 21.2 | 16.3 | 18.1 | 13.3 | 12.7 | 14.4 | 19.4 | 18.3 | 14.7 |
This table is very wide; you may have to scroll sideways to see all the days, and you may need to set the paper to 'landscape' to print.
| The temperatures in this table are coloured by 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 difference from average |
Extremes Records Summaries Important notes the top
| Daily rainfall | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Central Coast (09) | 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 | - | - | - | - | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.0 | - | - | - | - | 16.8 |
| Champion Lakes | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.4 | - | - | - | - | 11.0 |
| Garden Island HSF | - | - | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | - | - | - | - | 8.4 |
| Gosnells City | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.8 | - | - | - | - | 9.6 |
| Jandakot Aero | - | - | - | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.6 | - | - | - | - | 8.6 |
| Jarrahdale | - | 0.2 | - | - | 0.4 | 0.2 | - | 0.2 | - | - | - | - | 0.2 | - | - | - | - | - | - | - | - | 0.6 | - | - | 0.8 | - | - | - | - | 18.4 |
| Medina Research Centre | - | - | - | - | »» | 0.4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | »» | »» | 0.8 | - | - | - | - | |
| Pearce RAAF | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.2 | 0.2 | - | 0.2 | - | - | - | - | 5.0 |
| Perth Airport | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | - | - | - | - | 5.8 |
| Perth Metro | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 10.2 |
| Roleystone | - | - | - | - | 0.2 | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.0 | - | - | - | - | 18.2 |
| Rottnest Island | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 5.8 |
| Serpentine | - | - | - | - | 0.6 | - | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | - | - | - | - | 10.2 |
| Swanbourne | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.6 |
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 marked like this 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).
This table is very wide; you may have to scroll sideways to see all the
days, and you may need to set the paper to 'landscape' to print.
Extremes Records Summaries Important notes the top
Notes
A Monthly Climate Summary is prepared to list 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, usually published in the fourth week of the month.
This statement has been prepared based on information available at 11 am on Sunday 1 December 2013. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Averages 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.
The ACORN-SAT dataset is being used for temperature area averages from December 2012 onwards. The major change from earlier datasets is that the ACORN-SAT dataset commences in 1910, rather than 1950, and hence rankings are calculated using a larger set of years.
Further information
Western Australia Climate Services CentreBureau of Meteorology
Phone (08) 9263 2222
Email climatedata@bom.gov.au
