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Climate statistics for Australian locations
Monthly climate statistics
All years of record
BLACKWATER WATER TREATMENT PLANT
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 details
| Site name: BLACKWATER WATER TREATMENT PLANT | Site number: 035290 | Commenced: 1995 | Map | |
| Latitude: 23.60° S | Longitude: 148.87° E | Elevation: 187 m | Operational status: Closed 01 Mar 2010 | |
| 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) | 34.1 | 33.3 | 32.6 | 29.9 | 26.5 | 23.6 | 23.4 | 24.9 | 29.0 | 31.7 | 32.4 | 34.1 | 29.6 | 12 | 1995 2008 |
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| Highest temperature (°C) | 42.0 | 42.0 | 41.5 | 36.5 | 34.2 | 31.5 | 28.6 | 32.0 | 37.4 | 41.8 | 40.5 | 43.4 | 43.4 | 12 | 1995 2008 |
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| Date | 07 Jan 2006 | 18 Feb 1999 | 13 Mar 2007 | 03 Apr 2006 | 05 May 2007 | 29 Jun 2003 | 19 Jul 1996 | 25 Aug 2006 | 27 Sep 1997 | 31 Oct 2003 | 30 Nov 2006 | 25 Dec 2001 | 25 Dec 2001 | ||||
| Lowest maximum temperature (°C) | 24.5 | 22.9 | 23.0 | 19.7 | 16.7 | 10.6 | 14.7 | 12.8 | 18.0 | 21.1 | 23.2 | 24.5 | 10.6 | 12 | 1995 2008 |
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| Date | 05 Jan 1996 | 15 Feb 2000 | 29 Mar 2008 | 22 Apr 2000 | 30 May 2000 | 20 Jun 2007 | 26 Jul 2001 | 09 Aug 1996 | 05 Sep 2007 | 08 Oct 1996 | 11 Nov 2000 | 28 Dec 2000 | 20 Jun 2007 | ||||
| Decile 1 maximum temperature (°C) | 30.5 | 28.8 | 29.9 | 27.0 | 23.4 | 19.4 | 20.2 | 21.9 | 25.2 | 27.8 | 28.2 | 30.0 | 12 | 1995 2008 |
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| Decile 9 maximum temperature(°C) | 38.1 | 36.8 | 35.2 | 33.0 | 29.5 | 27.1 | 26.0 | 28.1 | 32.7 | 36.0 | 36.0 | 38.4 | 12 | 1995 2008 |
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| Mean number of days ≥ 30 °C | 27.7 | 22.8 | 25.5 | 14.9 | 1.9 | 0.2 | 0.0 | 0.8 | 11.9 | 21.3 | 22.8 | 25.5 | 175.3 | 12 | 1995 2008 |
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| Mean number of days ≥ 35 °C | 12.2 | 8.8 | 3.6 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 4.5 | 5.5 | 11.3 | 46.7 | 12 | 1995 2008 |
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| Mean number of days ≥ 40 °C | 0.5 | 0.2 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.3 | 1.1 | 2.6 | 12 | 1995 2008 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 22.4 | 22.3 | 20.8 | 17.9 | 13.1 | 10.7 | 8.5 | 10.6 | 14.1 | 17.8 | 19.5 | 21.6 | 16.6 | 12 | 1995 2008 |
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| Lowest temperature (°C) | 16.8 | 15.0 | 12.5 | 4.2 | 2.7 | 2.4 | 1.1 | 1.5 | 3.1 | 8.8 | 9.5 | 14.8 | 1.1 | 12 | 1995 2008 |
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| Date | 14 Jan 2000 | 15 Feb 1996 | 31 Mar 2008 | 29 Apr 1999 | 29 May 2000 | 02 Jun 2000 | 02 Jul 2002 | 20 Aug 1996 | 22 Sep 1996 | 01 Oct 2002 | 17 Nov 2006 | 13 Dec 1995 | 02 Jul 2002 | ||||
| Highest minimum temperature (°C) | 26.8 | 27.7 | 26.6 | 24.5 | 21.6 | 20.5 | 18.7 | 17.8 | 20.6 | 26.5 | 25.8 | 27.7 | 27.7 | 12 | 1995 2008 |
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| Date | 06 Jan 2005 | 01 Feb 2005 | 12 Mar 2007 | 04 Apr 2006 | 05 May 2000 | 04 Jun 2003 | 14 Jul 2008 | 18 Aug 1996 | 30 Sep 1996 | 10 Oct 2005 | 18 Nov 1996 | 26 Dec 2001 | 26 Dec 2001 | ||||
| Decile 1 minimum temperature (°C) | 20.0 | 20.0 | 18.2 | 14.2 | 8.3 | 5.1 | 3.5 | 5.8 | 8.9 | 14.6 | 16.7 | 19.1 | 12 | 1995 2008 |
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| Decile 9 minimum temperature (°C) | 24.5 | 24.5 | 23.3 | 21.2 | 18.0 | 16.5 | 13.4 | 15.0 | 18.0 | 20.7 | 22.1 | 24.3 | 12 | 1995 2008 |
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| Mean number of days ≤ 2 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 12 | 1995 2008 |
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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 | 12 | 1995 2008 |
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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) | 68.5 | 78.8 | 30.5 | 28.6 | 21.4 | 42.1 | 15.1 | 25.9 | 19.3 | 66.0 | 66.3 | 79.5 | 546.2 | 14 | 1995 2010 |
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| Highest rainfall (mm) | 148.1 | 172.2 | 97.4 | 175.3 | 68.6 | 168.6 | 108.9 | 125.3 | 133.1 | 248.3 | 182.8 | 133.0 | 1097.3 | 14 | 1995 2010 |
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| Date | 1996 | 2010 | 2001 | 1998 | 1996 | 2007 | 2008 | 1998 | 1998 | 1998 | 2008 | 2003 | 1998 | ||||
| Lowest rainfall (mm) | 10.4 | 5.4 | 0.3 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.8 | 1.3 | 315.3 | 14 | 1995 2010 |
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| Date | 2003 | 1996 | 1998 | 1999 | 2004 | 2004 | 2009 | 2009 | 2009 | 2009 | 2003 | 1999 | 2006 | ||||
| Decile 1 rainfall (mm) | 18.1 | 12.6 | 1.1 | 1.5 | 1.6 | 8.2 | 0.1 | 0.2 | 0.0 | 17.6 | 21.1 | 23.0 | 15 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 58.5 | 77.6 | 16.0 | 13.1 | 12.6 | 28.7 | 6.1 | 21.2 | 4.3 | 55.4 | 55.4 | 91.0 | 15 | n/a n/a |
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| Decile 9 rainfall (mm) | 117.3 | 151.2 | 79.5 | 54.6 | 49.4 | 84.8 | 22.1 | 49.6 | 40.2 | 100.7 | 109.0 | 120.1 | 15 | n/a n/a |
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| Highest daily rainfall (mm) | 87.6 | 90.6 | 45.4 | 103.8 | 66.4 | 38.2 | 58.6 | 67.1 | 39.8 | 107.0 | 52.0 | 63.0 | 107.0 | 14 | 1995 2010 |
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| Date | 09 Jan 1996 | 14 Feb 2008 | 24 Mar 1997 | 23 Apr 1998 | 01 May 1996 | 06 Jun 2007 | 24 Jul 2008 | 28 Aug 1998 | 25 Sep 1998 | 25 Oct 1998 | 28 Nov 2008 | 28 Dec 2008 | 25 Oct 1998 | ||||
| Mean number of days of rain | 8.5 | 7.1 | 4.0 | 3.8 | 3.0 | 4.1 | 2.4 | 2.8 | 2.6 | 5.2 | 6.8 | 7.3 | 57.6 | 14 | 1995 2010 |
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| Mean number of days of rain ≥ 1 mm | 6.5 | 5.7 | 2.5 | 2.6 | 1.8 | 3.0 | 1.4 | 2.1 | 1.9 | 4.2 | 5.5 | 5.9 | 43.1 | 14 | 1995 2010 |
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| Mean number of days of rain ≥ 10 mm | 2.3 | 2.3 | 1.0 | 0.7 | 0.4 | 1.4 | 0.5 | 0.9 | 0.7 | 1.8 | 2.4 | 2.5 | 16.9 | 14 | 1995 2010 |
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| Mean number of days of rain ≥ 25 mm | 0.7 | 1.1 | 0.4 | 0.3 | 0.3 | 0.7 | 0.1 | 0.3 | 0.3 | 0.5 | 0.9 | 1.2 | 6.8 | 14 | 1995 2010 |
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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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| Date | |||||||||||||||||
| Mean daily sunshine (hours) | |
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| Mean daily solar exposure (MJ/m2) | 24.8 | 23.0 | 21.3 | 18.6 | 15.7 | 14.2 | 15.2 | 18.2 | 21.4 | 24.1 | 25.4 | 25.8 | 20.6 | 36 | 1990 2026 |
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| Mean number of clear days | 2.2 | 2.5 | 4.9 | 6.7 | 8.7 | 9.2 | 11.5 | 13.1 | 13.8 | 9.8 | 6.2 | 3.7 | 92.3 | 13 | 1995 2008 |
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| Mean number of cloudy days | 11.3 | 10.3 | 5.9 | 5.5 | 5.1 | 6.9 | 3.9 | 4.4 | 4.2 | 7.2 | 8.5 | 9.2 | 82.4 | 13 | 1995 2008 |
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| Mean daily evaporation (mm) | |
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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) | 27.2 | 26.8 | 25.8 | 23.6 | 20.2 | 16.8 | 15.8 | 17.8 | 21.2 | 24.0 | 25.4 | 27.0 | 22.6 | 12 | 1995 2008 |
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| Mean 9am wet-bulb temperature (°C) | 22.5 | 22.3 | 21.0 | 18.6 | 15.5 | 13.3 | 12.1 | 13.5 | 15.9 | 18.5 | 19.8 | 21.7 | 17.9 | 12 | 1995 2008 |
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| Mean 9am dew-point temperature (°C) | 19.9 | 19.7 | 18.1 | 14.9 | 11.5 | 10.0 | 8.2 | 9.2 | 11.1 | 14.5 | 16.1 | 18.4 | 14.3 | 12 | 1995 2008 |
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| Mean 9am relative humidity (%) | 65 | 66 | 63 | 60 | 59 | 66 | 63 | 60 | 55 | 58 | 58 | 61 | 61 | 12 | 1995 2008 |
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| Mean 9am cloud cover (oktas) | 4.6 | 4.4 | 3.5 | 3.1 | 2.8 | 3.1 | 2.2 | 2.5 | 2.5 | 3.5 | 4.2 | 4.5 | 3.4 | 13 | 1995 2008 |
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| Mean 9am wind speed (km/h) | 11.4 | 12.4 | 11.2 | 9.0 | 8.1 | 7.7 | 7.1 | 10.6 | 11.1 | 12.6 | 11.8 | 10.8 | 10.3 | 10 | 1995 2008 |
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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) | 32.6 | 31.9 | 31.4 | 28.6 | 25.5 | 22.5 | 22.5 | 24.0 | 28.1 | 30.5 | 31.2 | 32.7 | 28.5 | 12 | 1995 2008 |
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| Mean 3pm wet-bulb temperature (°C) | 23.4 | 23.2 | 21.8 | 19.6 | 17.0 | 15.3 | 14.3 | 15.3 | 17.2 | 19.5 | 20.7 | 22.3 | 19.1 | 12 | 1995 2008 |
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| Mean 3pm dew-point temperature (°C) | 18.2 | 18.3 | 15.8 | 12.8 | 9.7 | 8.5 | 6.0 | 6.7 | 7.3 | 11.1 | 13.4 | 15.7 | 12.0 | 12 | 1995 2008 |
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| Mean 3pm relative humidity (%) | 45 | 48 | 41 | 41 | 39 | 45 | 37 | 35 | 30 | 33 | 37 | 39 | 39 | 12 | 1995 2008 |
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| Mean 3pm cloud cover (oktas) | 5.5 | 5.5 | 4.8 | 4.7 | 3.9 | 3.6 | 2.7 | 3.2 | 2.8 | 3.8 | 4.5 | 4.9 | 4.2 | 13 | 1995 2008 |
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| Mean 3pm wind speed (km/h) | 9 | 1995 2008 |
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| 3pm wind speed vs direction plot | |
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red = highest value
blue = lowest value
Product IDCJCM0036 Prepared at Thu 05 Feb 2026 00:40:55 AM AEDT
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.
Related Links
- This page URL: http://www.bom.gov.au/climate/averages/tables/cw_035290_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_035290.shtml - About climate averages: http://www.bom.gov.au/climate/cdo/about/about-stats.shtml
- Data file (csv): http://www.bom.gov.au/clim_data/cdio/tables/text/IDCJCM0036_035290.csv
- Climate averages home page URL: http://www.bom.gov.au/climate/data/index.shtml
- Bureau of Meteorology website: http://www.bom.gov.au
Related information
Maps
- Long term climatology maps for selected elements
- Rainfall maps and temperature maps based on recent observations
Recent observations for this site
Climate outlooks
- Monthly and seasonal climate outlooks
Additional climate information
Page created: Thu 05 Feb 2026 00:40:55 AM AEDT