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Climate statistics for Australian locations
Monthly climate statistics
All years of record
DEAL ISLAND
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: DEAL ISLAND | Site number: 099001 | Commenced: 1871 | Map | |
| Latitude: 39.48° S | Longitude: 147.32° E | Elevation: 85 m | Operational status: Open | |
| 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) | 20.2 | 20.5 | 19.5 | 17.6 | 15.6 | 13.5 | 12.7 | 12.8 | 13.7 | 15.4 | 16.8 | 18.3 | 16.4 | 14 | 1984 1998 |
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| Highest temperature (°C) | 35.8 | 32.8 | 31.3 | 25.5 | 23.2 | 18.2 | 17.2 | 20.4 | 24.9 | 26.0 | 33.6 | 30.2 | 35.8 | 14 | 1984 1998 |
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| Date | 03 Jan 1991 | 25 Feb 1991 | 07 Mar 1991 | 04 Apr 1986 | 01 May 1997 | 01 Jun 1996 | 24 Jul 1990 | 25 Aug 1995 | 27 Sep 1987 | 16 Oct 1994 | 26 Nov 1997 | 12 Dec 1994 | 03 Jan 1991 | ||||
| Lowest maximum temperature (°C) | 14.3 | 15.5 | 13.0 | 12.5 | 10.2 | 9.2 | 8.4 | 9.2 | 9.8 | 9.7 | 10.8 | 13.1 | 8.4 | 14 | 1984 1998 |
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| Date | 08 Jan 1994 | 15 Feb 1991 | 08 Mar 1987 | 28 Apr 1986 | 31 May 1989 | 12 Jun 1993 | 25 Jul 1986 | 07 Aug 1996 | 06 Sep 1995 | 16 Oct 1984 | 07 Nov 1994 | 04 Dec 1995 | 25 Jul 1986 | ||||
| Decile 1 maximum temperature (°C) | 16.9 | 17.4 | 16.3 | 14.7 | 13.5 | 11.5 | 10.9 | 10.9 | 11.5 | 12.8 | 14.0 | 15.5 | 15 | 1984 1998 |
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| Decile 9 maximum temperature(°C) | 24.9 | 24.8 | 22.9 | 20.8 | 18.0 | 15.5 | 14.6 | 14.9 | 16.2 | 19.0 | 20.9 | 21.9 | 15 | 1984 1998 |
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| Mean number of days ≥ 30 °C | 0.6 | 0.3 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 1.2 | 14 | 1984 1998 |
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| Mean number of days ≥ 35 °C | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 14 | 1984 1998 |
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| Mean number of days ≥ 40 °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 | 14 | 1984 1998 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 14.1 | 14.6 | 14.2 | 12.8 | 11.5 | 9.7 | 8.6 | 8.2 | 8.9 | 9.8 | 11.2 | 12.6 | 11.4 | 14 | 1984 1998 |
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| Lowest temperature (°C) | 4.9 | 8.0 | 3.8 | 3.3 | 0.4 | -0.5 | -0.5 | -5.5 | -0.2 | 5.0 | -4.0 | 2.5 | -5.5 | 14 | 1984 1998 |
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| Date | 09 Jan 1994 | 28 Feb 1984 | 31 Mar 1995 | 18 Apr 1996 | 28 May 1994 | 23 Jun 1998 | 10 Jul 1997 | 18 Aug 1996 | 20 Sep 1994 | 16 Oct 1984 | 07 Nov 1995 | 19 Dec 1995 | 18 Aug 1996 | ||||
| Highest minimum temperature (°C) | 23.3 | 21.0 | 20.0 | 18.4 | 17.5 | 14.6 | 13.3 | 12.3 | 15.6 | 15.1 | 18.0 | 19.2 | 23.3 | 14 | 1984 1998 |
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| Date | 21 Jan 1997 | 04 Feb 1993 | 09 Mar 1991 | 27 Apr 1994 | 03 May 1988 | 07 Jun 1991 | 05 Jul 1991 | 31 Aug 1993 | 28 Sep 1987 | 01 Oct 1993 | 02 Nov 1987 | 07 Dec 1994 | 21 Jan 1997 | ||||
| Decile 1 minimum temperature (°C) | 11.6 | 11.9 | 11.5 | 9.8 | 8.9 | 7.3 | 6.0 | 5.9 | 6.3 | 7.5 | 8.8 | 10.0 | 15 | 1984 1998 |
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| Decile 9 minimum temperature (°C) | 16.9 | 17.5 | 17.1 | 15.9 | 14.1 | 12.0 | 10.9 | 10.4 | 11.4 | 12.2 | 13.9 | 15.3 | 15 | 1984 1998 |
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| Mean number of days ≤ 2 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.3 | 0.1 | 0.2 | 0.2 | 0.0 | 0.1 | 0.0 | 1.0 | 14 | 1984 1998 |
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| Mean number of days ≤ 0 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.1 | 0.0 | 0.5 | 14 | 1984 1998 |
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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) | 41.3 | 37.7 | 51.8 | 60.6 | 74.2 | 78.3 | 78.0 | 73.4 | 61.2 | 60.5 | 50.2 | 50.0 | 716.5 | 152 | 1871 2025 |
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| Highest rainfall (mm) | 162.1 | 236.4 | 186.0 | 220.5 | 208.8 | 247.0 | 246.3 | 249.2 | 166.8 | 165.7 | 138.1 | 161.6 | 1258.2 | 152 | 1871 2025 |
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| Date | 2016 | 2012 | 1970 | 1880 | 1905 | 1947 | 1936 | 2001 | 2000 | 1945 | 1934 | 1985 | 1956 | ||||
| Lowest rainfall (mm) | 0.0 | 0.0 | 0.0 | 1.8 | 13.9 | 8.0 | 12.4 | 11.7 | 12.4 | 2.5 | 1.0 | 0.8 | 339.8 | 152 | 1871 2025 |
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| Date | 1939 | 1965 | 1921 | 1923 | 1959 | 1972 | 1899 | 1914 | 1985 | 1914 | 1895 | 1931 | 1912 | ||||
| Decile 1 rainfall (mm) | 9.2 | 7.0 | 13.4 | 22.6 | 29.5 | 36.0 | 36.6 | 31.8 | 28.2 | 20.8 | 22.2 | 13.7 | 154 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 36.2 | 28.0 | 45.0 | 55.0 | 68.4 | 68.3 | 72.4 | 68.4 | 58.9 | 54.6 | 47.0 | 43.2 | 154 | n/a n/a |
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| Decile 9 rainfall (mm) | 84.1 | 83.7 | 102.6 | 103.9 | 121.9 | 141.2 | 127.4 | 113.6 | 93.4 | 101.6 | 83.4 | 94.3 | 154 | n/a n/a |
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| Highest daily rainfall (mm) | 105.4 | 114.4 | 99.6 | 76.2 | 116.0 | 79.0 | 60.2 | 122.8 | 51.6 | 120.4 | 55.9 | 64.8 | 122.8 | 128 | 1881 2025 |
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| Date | 03 Jan 1920 | 11 Feb 2012 | 10 Mar 1942 | 05 Apr 1929 | 16 May 1974 | 07 Jun 2009 | 04 Jul 1963 | 29 Aug 2001 | 02 Sep 1937 | 28 Oct 1945 | 30 Nov 1934 | 15 Dec 1984 | 29 Aug 2001 | ||||
| Mean number of days of rain | 8.3 | 7.5 | 9.9 | 12.5 | 15.1 | 16.2 | 17.0 | 16.7 | 14.6 | 13.4 | 11.6 | 10.2 | 153.0 | 128 | 1871 2025 |
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| Mean number of days of rain ≥ 1 mm | 4.7 | 4.1 | 5.8 | 7.5 | 9.5 | 10.0 | 10.9 | 10.5 | 9.2 | 8.2 | 6.5 | 5.8 | 92.7 | 128 | 1881 2025 |
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| Mean number of days of rain ≥ 10 mm | 1.1 | 0.9 | 1.2 | 1.4 | 1.9 | 1.9 | 1.8 | 1.7 | 1.3 | 1.3 | 1.2 | 1.2 | 16.9 | 128 | 1881 2025 |
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| Mean number of days of rain ≥ 25 mm | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.2 | 0.2 | 0.2 | 2.3 | 128 | 1881 2025 |
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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) | 24.0 | 20.5 | 15.3 | 10.7 | 7.5 | 6.1 | 6.9 | 9.8 | 14.0 | 18.8 | 22.1 | 25.0 | 15.1 | 19 | 2007 2025 |
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| Mean number of clear days | 3.6 | 3.9 | 1.8 | 1.6 | 1.1 | 1.0 | 1.4 | 2.4 | 1.9 | 1.0 | 1.6 | 2.6 | 23.9 | 14 | 1983 1998 |
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| Mean number of cloudy days | 11.8 | 10.8 | 12.1 | 14.1 | 14.7 | 15.6 | 14.4 | 14.6 | 13.8 | 7.6 | 12.9 | 13.1 | 155.5 | 14 | 1983 1998 |
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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) | 16.9 | 17.2 | 16.5 | 15.5 | 13.8 | 11.8 | 11.0 | 10.8 | 11.6 | 12.7 | 14.0 | 15.4 | 13.9 | 14 | 1984 1998 |
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| Mean 9am wet-bulb temperature (°C) | 14.8 | 14.9 | 14.7 | 13.5 | 12.1 | 10.0 | 9.4 | 9.1 | 9.8 | 10.9 | 12.0 | 13.5 | 12.1 | 14 | 1984 1998 |
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| Mean 9am dew-point temperature (°C) | 13.0 | 13.1 | 13.1 | 11.7 | 10.5 | 8.2 | 7.7 | 7.2 | 7.9 | 9.0 | 10.1 | 11.9 | 10.3 | 14 | 1984 1998 |
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| Mean 9am relative humidity (%) | 79 | 78 | 81 | 79 | 81 | 79 | 81 | 79 | 79 | 79 | 78 | 80 | 79 | 14 | 1984 1998 |
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| Mean 9am cloud cover (oktas) | 5.4 | 5.1 | 5.4 | 5.8 | 5.8 | 6.0 | 5.7 | 5.3 | 5.6 | 5.4 | 5.7 | 5.6 | 5.6 | 15 | 1983 1998 |
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| Mean 9am wind speed (km/h) | 25.0 | 24.1 | 24.0 | 25.5 | 23.6 | 26.9 | 25.1 | 29.2 | 26.8 | 25.9 | 25.0 | 25.0 | 25.5 | 12 | 1983 1998 |
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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) | 18.8 | 19.3 | 18.1 | 16.3 | 14.5 | 12.6 | 11.6 | 11.6 | 12.4 | 14.0 | 15.5 | 17.3 | 15.2 | 14 | 1984 1998 |
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| Mean 3pm wet-bulb temperature (°C) | 15.8 | 16.0 | 15.1 | 13.9 | 12.5 | 10.4 | 9.7 | 9.5 | 10.4 | 11.8 | 12.6 | 14.7 | 12.7 | 14 | 1984 1998 |
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| Mean 3pm dew-point temperature (°C) | 13.5 | 13.5 | 12.7 | 11.8 | 10.6 | 8.4 | 7.7 | 7.2 | 8.3 | 9.6 | 9.9 | 12.5 | 10.5 | 14 | 1984 1998 |
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| Mean 3pm relative humidity (%) | 72 | 70 | 72 | 75 | 79 | 77 | 78 | 75 | 76 | 75 | 71 | 75 | 75 | 14 | 1984 1998 |
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| Mean 3pm cloud cover (oktas) | 4.5 | 4.7 | 4.9 | 5.7 | 5.7 | 5.9 | 5.5 | 5.4 | 5.4 | 5.1 | 5.1 | 5.1 | 5.2 | 15 | 1983 1998 |
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| Mean 3pm wind speed (km/h) | 26.3 | 25.7 | 25.0 | 25.0 | 24.4 | 27.8 | 25.9 | 29.9 | 26.8 | 26.8 | 26.9 | 26.0 | 26.4 | 12 | 1983 1998 |
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| 3pm wind speed vs direction plot | |
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red = highest value
blue = lowest value
Product IDCJCM0033 Prepared at Thu 25 Sep 2025 00:06:09 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_099001_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_099001.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/IDCJCM0033_099001.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 00:06:09 AM AEST