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An extended list of climate statistics recorded is provided below. There is also a summary table for printing with the commonly requested statistics and a map showing the location of this site. Monthly statistics are only included if there are more than 10 years of suitable data.
Note: Many statistics are updated quarterly and recent weather events may not be represented in the statistics below. For more current information on recent extreme values, please refer to the corresponding Daily rainfall, Maximum temperature and Minimum temperature data tables for this site, and our Australian Climate and Weather Extremes Monitoring System. Missing observations associated with the observer being unavailable (where observations are undertaken manually), a failure in the observing equipment, or when an event has produced suspect data may result in an extreme event not being recorded.Site name: WITTENOOM | Site number: 005026 | Commenced: 1949 | Map | |
Latitude: 22.24° S | Longitude: 118.34° E | Elevation: 463 m | Operational status: Closed 31 Aug 2019 |
Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
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Temperature | |||||||||||||||||
Maximum temperature | |||||||||||||||||
Mean maximum temperature (°C) | 39.5 | 37.9 | 36.7 | 33.3 | 27.9 | 24.5 | 24.4 | 26.9 | 31.3 | 35.5 | 38.1 | 39.8 | 33.0 | 66 | 1951 2019 |
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Highest temperature (°C) | 47.6 | 47.5 | 45.7 | 42.0 | 37.4 | 33.0 | 32.6 | 35.3 | 39.5 | 44.0 | 44.7 | 47.8 | 47.8 | 66 | 1951 2019 |
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Date | 02 Jan 1998 | 04 Feb 1977 | 10 Mar 2019 | 05 Apr 2016 | 01 May 1990 | 07 Jun 1998 | 28 Jul 2017 | 27 Aug 2017 | 30 Sep 1998 | 22 Oct 2002 | 20 Nov 1973 | 27 Dec 2018 | 27 Dec 2018 | ||||
Lowest maximum temperature (°C) | 23.3 | 22.8 | 22.2 | 15.1 | 14.4 | 13.3 | 11.9 | 15.0 | 16.2 | 23.9 | 22.5 | 22.8 | 11.9 | 66 | 1951 2019 |
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Date | 27 Jan 1967 | 13 Feb 1961 | 17 Mar 2012 | 21 Apr 2015 | 27 May 1964 | 18 Jun 1977 | 01 Jul 1998 | 23 Aug 1968 | 14 Sep 2010 | 05 Oct 1964 | 01 Nov 1975 | 08 Dec 1975 | 01 Jul 1998 | ||||
Decile 1 maximum temperature (°C) | 34.5 | 32.2 | 32.1 | 28.6 | 23.2 | 20.9 | 20.4 | 22.9 | 27.1 | 31.1 | 34.4 | 36.1 | 65 | 1951 2017 |
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Decile 9 maximum temperature(°C) | 43.7 | 42.4 | 40.6 | 37.2 | 32.2 | 28.2 | 28.0 | 30.9 | 35.2 | 39.2 | 41.6 | 42.8 | 65 | 1951 2017 |
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Mean number of days ≥ 30 °C | 29.8 | 26.7 | 29.1 | 25.0 | 9.5 | 0.7 | 0.5 | 5.4 | 20.0 | 28.9 | 29.2 | 30.2 | 235.0 | 66 | 1951 2019 |
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Mean number of days ≥ 35 °C | 27.0 | 22.0 | 22.4 | 9.6 | 0.6 | 0.0 | 0.0 | 0.0 | 3.7 | 18.8 | 26.1 | 28.9 | 159.1 | 66 | 1951 2019 |
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Mean number of days ≥ 40 °C | 16.5 | 9.7 | 5.1 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.9 | 8.3 | 16.2 | 58.0 | 66 | 1951 2019 |
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Minimum temperature | |||||||||||||||||
Mean minimum temperature (°C) | 26.0 | 25.4 | 24.4 | 21.2 | 16.2 | 12.8 | 11.6 | 13.2 | 16.9 | 20.9 | 23.6 | 25.5 | 19.8 | 66 | 1951 2019 |
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Lowest temperature (°C) | 17.2 | 15.5 | 12.8 | 10.2 | 5.6 | 4.0 | 1.6 | 3.4 | 6.7 | 6.7 | 12.2 | 16.8 | 1.6 | 66 | 1951 2019 |
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Date | 19 Jan 1967 | 24 Feb 1967 | 31 Mar 1968 | 29 Apr 2006 | 27 May 1971 | 30 Jun 2006 | 12 Jul 1968 | 29 Aug 1968 | 15 Sep 1966 | 04 Oct 1966 | 04 Nov 1969 | 03 Dec 1966 | 12 Jul 1968 | ||||
Highest minimum temperature (°C) | 35.5 | 35.1 | 33.7 | 29.7 | 24.7 | 23.4 | 20.9 | 22.0 | 26.4 | 31.6 | 32.8 | 34.0 | 35.5 | 66 | 1951 2019 |
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Date | 21 Jan 2003 | 21 Feb 2015 | 04 Mar 1998 | 05 Apr 2018 | 04 May 2016 | 08 Jun 1998 | 28 Jul 2010 | 29 Aug 1982 | 28 Sep 2003 | 22 Oct 2002 | 20 Nov 1973 | 27 Dec 2018 | 21 Jan 2003 | ||||
Decile 1 minimum temperature (°C) | 22.2 | 22.1 | 21.0 | 17.0 | 11.9 | 8.3 | 7.5 | 9.3 | 12.7 | 16.3 | 19.2 | 21.6 | 64 | 1951 2017 |
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Decile 9 minimum temperature (°C) | 30.0 | 29.0 | 27.8 | 25.0 | 20.3 | 17.0 | 15.6 | 17.0 | 21.2 | 25.8 | 28.2 | 29.6 | 64 | 1951 2017 |
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Mean number of days ≤ 2 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 66 | 1951 2019 |
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Mean number of days ≤ 0 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 66 | 1951 2019 |
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Ground surface temperature | |||||||||||||||||
Mean daily ground minimum temperature (°C) | |
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Lowest ground temperature (°C) | |
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Mean number of days ground min. temp. ≤ -1 °C | |
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Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
Rainfall | |||||||||||||||||
Mean rainfall (mm) | 115.9 | 103.1 | 68.9 | 27.3 | 26.7 | 29.3 | 13.7 | 7.7 | 2.9 | 3.9 | 9.5 | 48.4 | 457.0 | 69 | 1950 2019 |
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Highest rainfall (mm) | 469.8 | 422.6 | 371.0 | 225.2 | 176.5 | 188.5 | 105.9 | 72.7 | 61.2 | 40.6 | 50.2 | 509.5 | 1344.6 | 69 | 1950 2019 |
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Date | 2012 | 1995 | 2000 | 1966 | 1970 | 1971 | 1959 | 1978 | 2010 | 1996 | 2009 | 1975 | 1999 | ||||
Lowest rainfall (mm) | 2.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 143.2 | 69 | 1950 2019 |
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Date | 1996 | 1959 | 1954 | 2018 | 2019 | 2017 | 2019 | 2018 | 2018 | 2018 | 2018 | 2001 | 1969 | ||||
Decile 1 rainfall (mm) | 22.4 | 7.8 | 4.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 70 | n/a n/a |
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Decile 5 (median) rainfall (mm) | 81.2 | 63.5 | 31.0 | 9.8 | 11.2 | 11.0 | 4.8 | 0.2 | 0.0 | 0.4 | 5.3 | 24.4 | 70 | n/a n/a |
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Decile 9 rainfall (mm) | 257.6 | 235.6 | 173.3 | 77.0 | 71.4 | 90.0 | 38.4 | 26.1 | 9.4 | 12.2 | 23.8 | 111.5 | 70 | n/a n/a |
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Highest daily rainfall (mm) | 228.0 | 126.2 | 170.8 | 94.4 | 70.0 | 76.5 | 75.9 | 40.2 | 41.0 | 25.9 | 44.8 | 313.2 | 313.2 | 65 | 1950 2019 |
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Date | 25 Jan 2013 | 22 Feb 2001 | 23 Mar 1999 | 11 Apr 1996 | 22 May 1988 | 04 Jun 1971 | 27 Jul 1959 | 01 Aug 1998 | 12 Sep 2010 | 23 Oct 1966 | 02 Nov 2011 | 09 Dec 1975 | 09 Dec 1975 | ||||
Mean number of days of rain | 9.1 | 8.9 | 5.9 | 3.4 | 3.4 | 3.0 | 2.0 | 1.3 | 0.7 | 1.0 | 2.0 | 4.8 | 45.5 | 69 | 1950 2019 |
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Mean number of days of rain ≥ 1 mm | 6.9 | 6.9 | 4.6 | 2.5 | 2.4 | 2.2 | 1.6 | 0.9 | 0.4 | 0.7 | 1.4 | 3.5 | 34.0 | 65 | 1950 2019 |
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Mean number of days of rain ≥ 10 mm | 2.8 | 2.6 | 1.6 | 0.8 | 0.7 | 0.7 | 0.4 | 0.2 | 0.1 | 0.1 | 0.2 | 1.2 | 11.4 | 65 | 1950 2019 |
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Mean number of days of rain ≥ 25 mm | 1.2 | 1.2 | 0.8 | 0.3 | 0.2 | 0.3 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.4 | 4.6 | 65 | 1950 2019 |
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Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
Other daily elements | |||||||||||||||||
Mean daily wind run (km) | |
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Maximum wind gust speed (km/h) | |
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Mean daily sunshine (hours) | |
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Mean daily solar exposure (MJ/m2) | 26.0 | 24.2 | 22.5 | 19.5 | 16.4 | 14.7 | 16.4 | 19.9 | 23.7 | 26.8 | 28.4 | 28.1 | 22.2 | 35 | 1990 2025 |
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Mean number of clear days | 6.3 | 6.2 | 10.4 | 11.0 | 14.9 | 16.8 | 21.0 | 22.1 | 22.1 | 20.5 | 15.9 | 11.9 | 179.1 | 57 | 1951 2010 |
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Mean number of cloudy days | 8.3 | 8.8 | 7.2 | 7.3 | 7.3 | 5.9 | 3.9 | 2.9 | 2.0 | 1.9 | 2.6 | 4.9 | 63.0 | 57 | 1951 2010 |
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Mean daily evaporation (mm) | 11.3 | 9.8 | 9.0 | 7.7 | 5.7 | 4.5 | 4.8 | 6.1 | 8.6 | 11.1 | 12.4 | 12.4 | 8.6 | 50 | 1967 2019 |
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Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
9 am conditions | |||||||||||||||||
Mean 9am temperature (°C) | 32.0 | 30.5 | 29.9 | 26.7 | 21.5 | 17.9 | 17.1 | 19.4 | 23.8 | 28.0 | 30.8 | 32.2 | 25.8 | 58 | 1951 2010 |
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Mean 9am wet-bulb temperature (°C) | 21.5 | 21.6 | 19.9 | 17.5 | 14.2 | 12.1 | 10.9 | 11.9 | 13.8 | 16.0 | 18.0 | 19.9 | 16.4 | 52 | 1951 2010 |
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Mean 9am dew-point temperature (°C) | 14.4 | 15.9 | 12.6 | 10.0 | 6.8 | 5.6 | 3.6 | 3.1 | 3.1 | 4.2 | 6.5 | 10.3 | 8.0 | 52 | 1951 2010 |
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Mean 9am relative humidity (%) | 40 | 47 | 39 | 39 | 42 | 48 | 43 | 37 | 29 | 24 | 25 | 30 | 37 | 52 | 1951 2010 |
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Mean 9am cloud cover (oktas) | 3.1 | 3.6 | 2.8 | 3.0 | 2.9 | 2.5 | 1.8 | 1.4 | 1.1 | 1.0 | 1.3 | 2.1 | 2.2 | 58 | 1951 2010 |
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Mean 9am wind speed (km/h) | 9.6 | 9.7 | 10.5 | 10.9 | 10.8 | 10.7 | 11.6 | 13.3 | 13.3 | 12.2 | 10.9 | 10.0 | 11.1 | 57 | 1951 2010 |
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9am wind speed vs direction plot | ![]() |
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Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
3 pm conditions | |||||||||||||||||
Mean 3pm temperature (°C) | 38.1 | 36.4 | 35.6 | 32.1 | 27.0 | 23.7 | 23.6 | 26.0 | 30.2 | 34.2 | 36.9 | 38.3 | 31.8 | 58 | 1951 2010 |
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Mean 3pm wet-bulb temperature (°C) | 22.6 | 22.8 | 21.3 | 19.2 | 16.3 | 14.5 | 13.7 | 14.6 | 16.2 | 18.1 | 19.6 | 21.5 | 18.4 | 52 | 1951 2010 |
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Mean 3pm dew-point temperature (°C) | 12.2 | 14.0 | 11.0 | 9.0 | 6.1 | 4.9 | 2.9 | 2.3 | 1.6 | 2.8 | 4.3 | 8.7 | 6.6 | 52 | 1951 2010 |
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Mean 3pm relative humidity (%) | 26 | 31 | 27 | 27 | 30 | 33 | 29 | 24 | 18 | 16 | 16 | 20 | 25 | 52 | 1951 2010 |
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Mean 3pm cloud cover (oktas) | 5.3 | 4.9 | 4.2 | 4.1 | 3.3 | 2.7 | 1.9 | 1.6 | 1.6 | 2.1 | 3.2 | 4.2 | 3.3 | 57 | 1951 2010 |
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Mean 3pm wind speed (km/h) | 10.1 | 9.7 | 9.3 | 8.9 | 8.7 | 8.7 | 9.7 | 10.5 | 12.1 | 11.8 | 11.5 | 10.2 | 10.1 | 56 | 1951 2010 |
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3pm wind speed vs direction plot | ![]() |
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Monthly statistics are only included if there are more than 10 years of data. The number of years (provided in the 2nd last column of the table) may differ between elements if the observing program at the site changed. More detailed data for individual sites can be obtained by contacting the Bureau.