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Climate statistics for Australian locations
Monthly climate statistics
All years of record
ROLLESTON
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: ROLLESTON | Site number: 035059 | Commenced: 1889 | Map | |
| Latitude: 24.46° S | Longitude: 148.63° E | Elevation: 214 m | Operational status: Closed 01 Jun 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) | 34.8 | 33.7 | 32.8 | 29.7 | 26.1 | 23.0 | 22.9 | 24.8 | 28.5 | 31.7 | 33.0 | 34.2 | 29.6 | 21 | 1987 2010 |
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| Highest temperature (°C) | 44.5 | 41.7 | 41.2 | 37.0 | 33.9 | 31.4 | 29.2 | 35.4 | 38.8 | 41.6 | 43.3 | 44.0 | 44.5 | 21 | 1987 2010 |
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| Date | 06 Jan 1994 | 02 Feb 2005 | 15 Mar 1998 | 06 Apr 1996 | 23 May 2003 | 01 Jun 1999 | 04 Jul 1994 | 23 Aug 2009 | 30 Sep 1988 | 31 Oct 2003 | 18 Nov 1990 | 03 Dec 1996 | 06 Jan 1994 | ||||
| Lowest maximum temperature (°C) | 22.9 | 21.7 | 20.7 | 18.2 | 16.3 | 10.2 | 13.1 | 12.1 | 15.3 | 20.1 | 19.5 | 22.9 | 10.2 | 21 | 1987 2010 |
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| Date | 31 Jan 2010 | 15 Feb 2000 | 24 Mar 1990 | 30 Apr 1996 | 25 May 1990 | 20 Jun 2007 | 23 Jul 2008 | 18 Aug 2008 | 01 Sep 1992 | 22 Oct 1999 | 07 Nov 1987 | 28 Dec 2006 | 20 Jun 2007 | ||||
| Decile 1 maximum temperature (°C) | 30.6 | 28.9 | 29.8 | 26.1 | 22.5 | 18.9 | 19.5 | 21.0 | 24.0 | 27.1 | 28.6 | 29.8 | 21 | 1987 2010 |
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| Decile 9 maximum temperature(°C) | 38.8 | 37.7 | 36.1 | 33.0 | 29.3 | 26.8 | 26.0 | 28.5 | 32.9 | 35.9 | 37.1 | 38.5 | 21 | 1987 2010 |
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| Mean number of days ≥ 30 °C | 26.8 | 22.6 | 25.8 | 13.6 | 1.3 | 0.1 | 0.0 | 1.1 | 10.1 | 19.5 | 21.5 | 24.1 | 166.5 | 22 | 1987 2010 |
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| Mean number of days ≥ 35 °C | 14.5 | 9.6 | 5.7 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.7 | 4.7 | 7.4 | 12.3 | 55.4 | 22 | 1987 2010 |
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| Mean number of days ≥ 40 °C | 1.6 | 0.3 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.5 | 1.0 | 3.7 | 22 | 1987 2010 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 21.0 | 20.8 | 18.3 | 14.9 | 10.6 | 7.1 | 5.6 | 6.8 | 10.6 | 15.0 | 17.8 | 19.7 | 14.0 | 21 | 1987 2010 |
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| Lowest temperature (°C) | 12.8 | 13.5 | 9.5 | 2.9 | -1.0 | -1.5 | -3.0 | -3.0 | 0.5 | 4.5 | 7.2 | 8.9 | -3.0 | 21 | 1987 2010 |
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| Date | 02 Jan 1990 | 14 Feb 1995 | 31 Mar 1993 | 29 Apr 1999 | 25 May 2006 | 26 Jun 1992 | 21 Jul 1995 | 01 Aug 1994 | 08 Sep 1995 | 04 Oct 1995 | 17 Nov 2006 | 29 Dec 2006 | 01 Aug 1994 | ||||
| Highest minimum temperature (°C) | 27.0 | 26.8 | 24.5 | 23.6 | 21.0 | 17.7 | 16.3 | 20.0 | 19.5 | 21.4 | 24.6 | 29.5 | 29.5 | 21 | 1987 2010 |
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| Date | 23 Jan 1998 | 01 Feb 2003 | 15 Mar 1995 | 04 Apr 2006 | 03 May 2000 | 04 Jun 2003 | 04 Jul 2004 | 31 Aug 1997 | 15 Sep 2003 | 08 Oct 2007 | 18 Nov 1990 | 30 Dec 2008 | 30 Dec 2008 | ||||
| Decile 1 minimum temperature (°C) | 18.1 | 18.0 | 15.2 | 10.5 | 5.3 | 1.8 | 0.5 | 1.8 | 5.8 | 10.5 | 13.8 | 16.7 | 21 | 1987 2010 |
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| Decile 9 minimum temperature (°C) | 23.7 | 23.5 | 21.8 | 19.2 | 15.8 | 13.0 | 11.5 | 12.3 | 15.6 | 19.1 | 21.2 | 22.9 | 21 | 1987 2010 |
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| Mean number of days ≤ 2 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 3.0 | 5.9 | 3.4 | 0.2 | 0.0 | 0.0 | 0.0 | 12.9 | 22 | 1987 2010 |
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| Mean number of days ≤ 0 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.7 | 1.7 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 3.1 | 22 | 1987 2010 |
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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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| Date | |||||||||||||||||
| 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) | 93.2 | 94.0 | 61.3 | 41.1 | 35.4 | 36.2 | 28.9 | 23.2 | 26.7 | 46.0 | 63.8 | 88.4 | 638.8 | 121 | 1889 2010 |
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| Highest rainfall (mm) | 389.2 | 568.1 | 360.1 | 293.6 | 221.6 | 274.3 | 171.6 | 157.4 | 150.9 | 199.3 | 233.2 | 340.7 | 1275.9 | 121 | 1889 2010 |
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| Date | 1918 | 1954 | 1963 | 1950 | 1903 | 1912 | 1933 | 1998 | 1917 | 1949 | 1894 | 1975 | 1950 | ||||
| Lowest rainfall (mm) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.5 | 194.0 | 121 | 1889 2010 |
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| Date | 1889 | 1969 | 1998 | 1986 | 1975 | 2004 | 2009 | 2009 | 2009 | 1968 | 1968 | 1905 | 1902 | ||||
| Decile 1 rainfall (mm) | 15.9 | 13.3 | 6.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.2 | 7.6 | 20.3 | 122 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 76.8 | 70.9 | 42.3 | 22.9 | 25.0 | 23.8 | 18.5 | 14.2 | 16.0 | 31.8 | 60.2 | 76.5 | 122 | n/a n/a |
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| Decile 9 rainfall (mm) | 190.3 | 188.3 | 144.2 | 98.0 | 83.3 | 95.1 | 71.4 | 50.8 | 69.8 | 93.6 | 128.4 | 169.1 | 122 | n/a n/a |
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| Highest daily rainfall (mm) | 128.3 | 209.6 | 141.2 | 180.0 | 78.6 | 101.6 | 80.3 | 72.1 | 76.7 | 126.7 | 105.4 | 114.3 | 209.6 | 121 | 1889 2010 |
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| Date | 23 Jan 1946 | 22 Feb 1971 | 07 Mar 1947 | 06 Apr 2006 | 01 May 1996 | 09 Jun 1912 | 10 Jul 1933 | 22 Aug 1893 | 05 Sep 1921 | 09 Oct 1950 | 20 Nov 1905 | 22 Dec 1975 | 22 Feb 1971 | ||||
| Mean number of days of rain | 7.0 | 6.3 | 5.1 | 3.3 | 3.2 | 3.1 | 2.9 | 2.6 | 2.9 | 4.7 | 5.7 | 6.6 | 53.4 | 121 | 1889 2010 |
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| Mean number of days of rain ≥ 1 mm | 6.5 | 5.6 | 4.5 | 2.9 | 2.8 | 2.8 | 2.5 | 2.2 | 2.6 | 4.1 | 5.0 | 6.0 | 47.5 | 121 | 1889 2010 |
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| Mean number of days of rain ≥ 10 mm | 2.8 | 2.6 | 1.9 | 1.0 | 1.1 | 1.0 | 1.0 | 0.7 | 0.9 | 1.5 | 2.0 | 2.6 | 19.1 | 121 | 1889 2010 |
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| Mean number of days of rain ≥ 25 mm | 1.1 | 1.2 | 0.6 | 0.5 | 0.4 | 0.5 | 0.3 | 0.2 | 0.3 | 0.4 | 0.7 | 1.1 | 7.3 | 121 | 1889 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) | 0 | 2006 2006 |
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| Maximum wind gust speed (km/h) | 0 | 2003 2006 |
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| Date | |||||||||||||||||
| Mean daily sunshine (hours) | |
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| Mean daily solar exposure (MJ/m2) | 25.2 | 23.1 | 21.5 | 18.5 | 15.4 | 13.8 | 14.9 | 18.0 | 21.2 | 23.8 | 25.1 | 25.7 | 20.5 | 35 | 1990 2025 |
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| Mean number of clear days | 4.1 | 3.4 | 7.5 | 8.5 | 8.8 | 11.5 | 14.3 | 15.5 | 13.8 | 10.0 | 6.5 | 4.5 | 108.4 | 22 | 1987 2010 |
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| Mean number of cloudy days | 12.0 | 11.1 | 6.7 | 6.8 | 6.1 | 5.9 | 4.4 | 4.4 | 4.2 | 6.8 | 9.8 | 10.8 | 89.0 | 22 | 1987 2010 |
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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) | 27.0 | 26.2 | 24.9 | 22.1 | 17.5 | 13.9 | 12.8 | 15.1 | 19.8 | 23.4 | 25.0 | 26.5 | 21.2 | 21 | 1987 2010 |
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| Mean 9am wet-bulb temperature (°C) | 22.3 | 22.2 | 20.6 | 18.0 | 14.1 | 11.4 | 10.1 | 11.3 | 14.7 | 17.7 | 19.3 | 21.3 | 16.9 | 18 | 1987 2010 |
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| Mean 9am dew-point temperature (°C) | 19.7 | 20.0 | 17.9 | 14.9 | 11.0 | 8.9 | 6.7 | 7.1 | 9.8 | 13.0 | 15.3 | 18.0 | 13.5 | 18 | 1987 2010 |
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| Mean 9am relative humidity (%) | 66 | 70 | 67 | 66 | 68 | 74 | 68 | 61 | 55 | 55 | 58 | 61 | 64 | 18 | 1987 2010 |
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| Mean 9am cloud cover (oktas) | 4.4 | 4.6 | 3.2 | 2.9 | 2.9 | 2.8 | 2.3 | 2.0 | 2.1 | 3.0 | 3.9 | 4.4 | 3.2 | 22 | 1987 2010 |
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| Mean 9am wind speed (km/h) | 10.2 | 10.2 | 9.7 | 9.2 | 9.2 | 8.9 | 8.1 | 9.8 | 11.4 | 12.2 | 11.6 | 10.8 | 10.1 | 20 | 1987 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) | 33.4 | 32.2 | 31.7 | 28.5 | 24.9 | 22.1 | 21.9 | 24.0 | 27.5 | 30.4 | 31.7 | 32.8 | 28.4 | 21 | 1987 2010 |
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| Mean 3pm wet-bulb temperature (°C) | 23.6 | 23.7 | 22.2 | 19.7 | 17.1 | 15.2 | 14.1 | 14.8 | 17.0 | 19.4 | 20.8 | 22.5 | 19.2 | 18 | 1987 2010 |
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| Mean 3pm dew-point temperature (°C) | 18.1 | 19.0 | 16.4 | 13.4 | 10.5 | 8.9 | 6.1 | 5.6 | 7.3 | 10.6 | 13.4 | 16.1 | 12.1 | 18 | 1987 2010 |
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| Mean 3pm relative humidity (%) | 44 | 49 | 43 | 43 | 43 | 46 | 38 | 33 | 31 | 33 | 38 | 40 | 40 | 18 | 1987 2010 |
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| Mean 3pm cloud cover (oktas) | 5.3 | 5.4 | 4.5 | 4.4 | 4.2 | 3.6 | 3.0 | 2.8 | 2.9 | 3.8 | 4.8 | 5.2 | 4.2 | 22 | 1987 2010 |
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| Mean 3pm wind speed (km/h) | 11.3 | 11.3 | 10.5 | 10.6 | 9.8 | 11.2 | 10.9 | 12.2 | 12.2 | 12.8 | 12.4 | 11.6 | 11.4 | 19 | 1987 2010 |
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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 25 Sep 2025 01:09:53 AM AEST
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_035059_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_035059.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_035059.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 25 Sep 2025 01:09:53 AM AEST