Greater Perth in November 2019: dry and very warm

November 2019 was very warm across Greater Perth. Monthly rainfall totals were below the long-term November average with most of falls recorded at the start of the month.

Below average rainfall for most sites

  • Monthly rainfall totals were mostly less than 10 mm along the coast and in offshore islands, 10-20 mm across the coastal plains and up to 30-40 mm in the Perth hills
  • Most sites registered four days of rain with at least 0.2 mm, but the majority of monthly rainfall totals were recorded on the 1st and 2nd
  • Mundaring in the Perth hills was the wettest spot (42.4 mm in total) in Greater Perth as a result of two consecutive days with moderate falls (19.8 mm on the 1st and 21.2 mm on the 2nd)

Well above average daytime temperatures

  • Mean maximum temperature were generally 2-4 °C above average
  • Perth Metro's mean maximum temperature of 29.1 °C was its equal third-warmest November in 26 years of record, equalling with 2013 yet behind 2010 (29.6 °C) and 2017 (29.3 °C)
  • Most coastal plain sites experienced a 4-day hot spell in mid-November, which saw temperatures over 35 °C on the 13th then climbing over 40 °C for the coastal plain sites on the 16th, and several sites broke their November temperature record
  • A daily maximum temperature of 40.4 °C on the 16th recorded at Perth Metro exceeded Perth city's previous November record (40.3 °C on 11 November 2003 at Perth Metro and 40.3 °C on 24 November 1913 at Perth Regional Office)
  • Pearce RAAF had its warmest November on record, and claimed the warmest spot of the month in Greater Perth
  • Mean minimum temperatures were above average across Greater Perth, and more than +1 °C in eastern coastal plain sites

Perth Metro

  • Total rainfall for Perth Metro was 18.2 mm, which is 84% of the long-term average of 21.7 mm
  • The mean daily maximum temperature for Perth Metro was 29.1 °C, which is 2.4 °C above the long-term average of 26.7 °C. The warmest day was 40.4 °C on the 16th, and the coolest day was on the 1st when the temperature reached 19.6 °C
  • The mean daily minimum temperature for Perth Metro was 14.9 °C, which is 0.6 °C above the long-term average of 14.3 °C. The coldest morning was 8.8 °C on the 21st, and the warmest morning was on the 9th when the minimum temperature was 19.9 °C

Further information

Media
(03) 9669 4057
Enquiries

Extremes in November 2019
Hottest day 43.1 °C at Pearce RAAF on the 16th
Warmest days on average 31.3 °C at Pearce RAAF
Coolest days on average 24.4 °C at Rottnest Island
Coldest day 15.6 °C at Bickley on the 1st
Coldest night 4.8 °C at Jandakot Aero on the 21st
Coolest nights on average 11.7 °C at Karnet
Warmest nights on average 16.3 °C at Rottnest Island
Warmest night 22.3 °C at Pearce RAAF on the 14th
Warmest on average overall 22.7 °C at Gosnells City
Coolest on average overall 19.7 °C at Bickley
Wettest overall 42.4 mm at Mundaring
Driest overall 3.6 mm at Rottnest Island
Wettest day 21.2 mm at Mundaring on the 2nd
Strongest wind gust 74 km/h at Ocean Reef on the 1st
74 km/h at Rottnest Island on the 28th

Record highest November temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Perth Airport 41.1 on the 16th 40.8 on the 11th in 2003 76 26.0
Pearce RAAF 43.1 on the 16th 41.6 on the 22nd in 1978 62 27.4
Jandakot Aero 40.3 on the 9th 40.0 on the 11th in 2003 30 26.4
Gosnells City 41.5 on the 16th 41.4 on the 11th in 2003 27 27.6
Bickley 38.9 on the 16th 38.0 on the 11th in 2003 26 25.0
Perth Metro 40.4 on the 16th 40.3 on the 11th in 2003 26 26.7



Record highest November mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Pearce RAAF 31.3 30.9 in 2017 58 27.4



Summary statistics for November 2019
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
November
2019
Diff
from
average
Highest for
November
2019
Mean for
November
2019
Diff
from
average
Lowest for
November
2019
Total for
November
2019
Average
for
November
Rank of
November
2019
Fraction of
November
average
Bickley 27.3 +2.3 38.9 16th 12.1 +0.2 7.8 21st 22.6 40.6 average 56%
Garden Island HSF 25.0 +1.2 38.1 9th 15.9 +0.2 11.5 21st 7.2 20.1 low 36%
Gosnells City 29.7 +2.1 41.5 16th 15.4 +1.0 8.8 5th 18.4 28.5 average 65%
Jandakot Aero 29.2 +2.8 40.3 9th 13.5 +0.8 4.8 21st 16.4 27.1 average 61%
Karnet 27.1 +2.6 37.7 16th 11.7 +0.3 6.0 21st 29.3 44.7 average 66%
Mandurah 26.7 +1.9 37.7 15th 15.6 0.0 10.8 21st 7.4 21.9 low 34%
Millendon (Swan Valley) 30.3   42.2 16th 13.6   6.2 21st 18.6
Pearce RAAF 31.3 +3.9 43.1 16th 13.7 +1.1 5.8 21st 9.2 22.3 average 41%
Perth Airport 29.8 +3.8 41.1 16th 14.0 +1.2 5.7 21st 21.4 25.5 average 84%
Perth Metro 29.1 +2.4 40.4 16th 14.9 +0.6 8.8 21st 18.2 21.7 average 84%
Rottnest Island 24.4 +1.3 35.8 9th 16.3 +0.4 10.3 1st 3.6 18.3 low 20%
Swanbourne 26.8 +1.4 40.0 9th 15.5 +0.7 10.4 21st 12.4 22.2 average 56%

Daily maximum temperatures for November 2019
123456789101112131415161718192021222324252627282930
Bickley15.617.818.625.523.824.426.829.136.823.027.127.232.835.935.538.929.932.824.718.721.626.229.728.428.731.131.027.024.926.3
Garden Island HSF18.920.220.021.320.519.522.131.638.123.524.030.129.232.135.930.823.322.621.518.520.123.323.422.725.528.023.621.926.630.1
Gosnells City19.621.421.627.026.026.029.032.539.425.030.136.138.538.941.530.033.526.021.023.527.431.329.530.134.034.030.528.430.0
Jandakot Aero19.421.222.025.524.127.031.940.324.330.030.235.138.037.739.728.132.125.421.422.926.730.428.528.834.033.730.128.029.6
Karnet15.718.119.124.322.527.727.028.936.822.725.933.735.437.730.133.218.820.428.527.628.330.730.026.2
Mandurah18.720.020.521.221.922.324.231.735.722.627.830.733.634.037.729.223.728.524.019.920.324.127.225.427.831.231.827.928.230.6
Millendon (Swan Valley)20.121.722.828.526.227.229.132.240.125.929.930.536.139.739.042.231.134.926.721.625.028.332.430.630.834.834.630.627.929.0
Pearce RAAF20.722.723.429.827.227.930.533.241.326.830.931.536.841.039.943.133.036.527.122.626.329.333.831.931.635.235.531.529.329.9
Perth Airport19.520.922.027.126.025.728.132.440.024.530.130.536.239.238.541.129.133.626.521.724.227.631.930.030.634.734.731.328.329.3
Perth Metro19.621.222.526.324.624.626.532.439.124.029.730.335.737.738.440.428.632.025.420.823.826.230.228.129.034.434.229.427.829.6
Rottnest Island19.620.520.521.421.520.721.227.135.823.322.626.029.629.934.033.323.323.722.819.920.922.323.222.423.727.024.322.523.124.8
Swanbourne19.320.220.721.422.021.724.032.340.023.425.730.334.134.036.736.725.126.623.620.321.224.027.123.827.132.628.425.228.229.6
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 2019
123456789101112131415161718192021222324252627282930
Bickley8.09.19.49.48.49.110.710.515.416.411.59.711.919.015.615.116.316.015.011.67.89.912.614.114.011.414.213.29.29.5
Garden Island HSF11.913.816.113.513.512.814.114.919.818.615.014.017.320.019.920.316.318.818.515.511.514.516.417.517.115.917.316.213.413.5
Gosnells City11.012.310.58.811.014.514.020.519.915.814.022.120.119.417.117.114.510.013.016.516.717.115.518.018.015.014.5
Jandakot Aero10.310.911.56.96.57.413.914.220.219.212.713.215.615.919.619.214.715.515.214.34.89.414.914.215.213.415.015.812.112.7
Karnet6.89.07.57.86.97.810.010.516.617.011.310.017.017.113.915.214.610.46.010.413.413.911.813.713.0
Mandurah12.014.114.613.012.612.013.314.519.819.114.713.516.620.618.920.218.718.118.914.610.814.415.816.316.316.017.115.813.213.5
Millendon (Swan Valley)10.310.39.87.36.69.312.614.421.517.813.613.416.919.420.318.615.014.614.215.36.210.114.212.613.512.515.116.812.713.0
Pearce RAAF9.711.48.66.36.28.212.314.821.617.012.313.419.022.321.219.214.713.914.415.45.810.614.314.013.412.014.917.112.713.0
Perth Airport11.010.710.47.26.510.814.314.520.118.014.213.415.918.219.618.915.615.515.314.85.710.114.615.517.012.917.116.612.612.8
Perth Metro10.912.412.69.49.610.913.815.019.919.415.213.516.216.419.819.117.117.517.615.78.812.716.416.116.214.217.616.813.013.1
Rottnest Island10.313.315.114.314.813.415.415.819.318.315.914.218.320.520.519.218.519.015.712.915.617.217.817.816.818.416.513.513.6
Swanbourne10.812.913.810.611.110.514.315.820.918.815.414.018.020.720.820.318.817.517.815.410.413.015.916.016.415.717.516.612.913.2
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 2019
123456789101112131415161718192021222324252627282930
Anketell 9.2 10.9 0.2 - - - - - - - - - - - - - - - - 2.4 0.1 - - - - - - - - -
Araluen 5.0 - - - - - - - - - - - - - - 1.6













Bickley 15.0 6.0 - - - - - - - - - - - - - - - - - 1.6 - - - - - - - - - -
Bungendore 8.0 8.6 - 0.2 - - - - - - - - - - - - - - - 1.6 - - - - - - - - - -
Chidlow 12.4 13.5 - - - - - - - - - - - - - - - - - 2.2









Garden Island HSF 4.4 2.2 - - - - - - - - - - - - - - - - - 0.6 - - - - - - - - - -
Gidgegannup 7.6 14.4 - - - - - - - - - - - - - - - - - 0.6 - - - - - - - - - -
Gosnells City 18.4 - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Huntly 10.0 15.3 - - - - - - - - - - - - - - - - - 2.0 - - - - - - - - - -
Jandakot Aero 8.2 6.6 - - -
- - - - - - - - - - - - - 1.6 - - - - - - - - - -
Jarrahdale 15.2 11.2 0.2 - 0.2 0.2 - - - - - - - - - - - - 0.2 1.2 - - - - - - - - - -
Karnet 9.2 14.3 - 3.2 - - - - - - - - - - - - - - - 2.6 - -
- - - - - -
Karragullen North 19.6 10.6 - - - - - - - - - - - - - - - - - 1.6









Maida Vale 9.4 15.6 - - - - - - - - - - - - - - - - - 2.2









Mandurah 5.2 1.4 - - - - - - - - - - - - - - - - - 0.8 - - - - - - - - - -
Midland 20.0




























Millendon (Swan Valley) 11.4 7.0 0.2 - - - - - - - - - - - - - - - - - - - - - - - - - - -
Mount Solus 14.6 9.6 0.4 - - - - - - - - - - - - - - - - 2.4 - - - - - - - - - -
Muchea 7.8 3.6 0.2 - - - - - - - - - - - - - - - - - - - - - - - - - - -
Mundaring 19.8 21.2 - - - - - - - - - - - - - - - - - 1.2 0.2








Pearce RAAF 5.8 3.2 0.2 - - - - - - - - - - - - - - - - - - - - - - - - - - -
Perth Airport 7.2 13.6 0.2 - - - - - - - - - - - - - - - - 0.4 - - - - - - - - - -
Perth Metro 5.0 13.0 - - - - - - - - - - - - - - - - 0.2 0.2 - - - - - - - - - -
Pinjarra Refinery 7.0 5.0 - - - - - - - - - - - - - - - - - 1.0 - - - - - - - - - -
Pinjarra South 5.4 8.2 - - - - - - - - - - - - - - - - - 1.2 - - - - - - - - - -
Roleystone 11.0 6.4 0.6 - - - - - - - - - - - - - - - - 2.2









Rottnest Island 2.2 1.0 0.2 - - - - - - - - - - - - - 0.2 - - - - - - - - - - - - -
Serpentine 9.6 5.4 - - - - - - - - - - - - - - - - - 0.6 - - - - - - - - - -
Swanbourne 4.0 8.0 - - - - - - - - - - - - - - 0.2 - - 0.2 - - - - - - - - - -
Tamala Park (Mindarie) 4.2 1.2 - - - - - - - - - - - - - - - - - 0.4 - - - - - - - - - -
Wanneroo 6.8 2.4 - - - - - - - - - - - - - - - 0.6









Werribee 8.0 14.4 - - 0.2 - - - - - - - - - - - - - - 0.6 - - - - - - - - - -
Whiteman Park 14.0 12.0 - - - - - - - - - - - - - - - - - 0.2









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

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 8 am on Monday 2 December 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
(03) 9669 4057
Enquiries