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Climate statistics for Australian locations
Monthly climate statistics
All years of record
COWES
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: COWES | Site number: 086025 | Commenced: 1882 | Map | |
| Latitude: 38.48° S | Longitude: 145.27° E | Elevation: 12 m | Operational status: Closed 31 Dec 1978 | |
| 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) | 24.1 | 24.4 | 22.7 | 19.3 | 16.4 | 13.7 | 13.2 | 14.3 | 16.4 | 18.4 | 20.1 | 22.6 | 18.8 | 34 | 1915 1949 |
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| Highest temperature (°C) | |
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| Date | |||||||||||||||||
| Lowest maximum temperature (°C) | |
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| Decile 1 maximum temperature (°C) | |
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| Decile 9 maximum temperature(°C) | |
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| Mean number of days ≥ 30 °C | |
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| Mean number of days ≥ 35 °C | |
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| Mean number of days ≥ 40 °C | |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 13.3 | 14.1 | 13.0 | 11.2 | 9.5 | 7.8 | 7.0 | 7.4 | 8.4 | 9.4 | 10.6 | 12.3 | 10.3 | 34 | 1915 1949 |
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| Lowest temperature (°C) | |
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| Date | |||||||||||||||||
| Highest minimum temperature (°C) | |
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| Decile 1 minimum temperature (°C) | |
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| Decile 9 minimum temperature (°C) | |
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| Mean number of days ≤ 2 °C | |
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| Mean number of days ≤ 0 °C | |
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| Ground surface temperature | |||||||||||||||||
| Mean daily ground minimum temperature (°C) | 10.5 | 11.3 | 10.1 | 8.3 | 6.6 | 4.9 | 4.3 | 4.5 | 5.5 | 6.7 | 8.0 | 9.6 | 7.5 | 32 | 1917 1949 |
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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) | 44.2 | 42.8 | 56.0 | 68.0 | 75.9 | 79.1 | 74.9 | 74.2 | 70.2 | 69.2 | 58.3 | 51.3 | 763.4 | 90 | 1882 1978 |
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| Highest rainfall (mm) | 170.2 | 221.5 | 167.0 | 185.4 | 185.1 | 174.8 | 149.1 | 152.1 | 158.5 | 166.3 | 168.8 | 130.1 | 999.1 | 90 | 1882 1978 |
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| Date | 1884 | 1973 | 1970 | 1935 | 1960 | 1977 | 1964 | 1909 | 1916 | 1906 | 1952 | 1907 | 1924 | ||||
| Lowest rainfall (mm) | 2.8 | 1.0 | 4.9 | 2.6 | 14.9 | 12.1 | 24.2 | 24.6 | 12.8 | 5.3 | 14.7 | 5.3 | 454.2 | 90 | 1882 1978 |
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| Date | 1939 | 1898 | 1960 | 1923 | 1932 | 1907 | 1899 | 1914 | 1961 | 1914 | 1963 | 1931 | 1967 | ||||
| Decile 1 rainfall (mm) | 10.7 | 9.2 | 16.0 | 24.8 | 36.5 | 37.2 | 35.6 | 41.6 | 38.2 | 29.7 | 25.7 | 17.2 | 91 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 36.3 | 33.9 | 46.4 | 59.8 | 71.6 | 75.4 | 67.9 | 72.4 | 65.9 | 65.4 | 55.0 | 43.0 | 91 | n/a n/a |
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| Decile 9 rainfall (mm) | 87.7 | 96.4 | 106.9 | 118.8 | 116.4 | 123.7 | 117.6 | 113.1 | 107.2 | 111.1 | 88.9 | 92.0 | 91 | n/a n/a |
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| Highest daily rainfall (mm) | 85.9 | 96.0 | 71.1 | 85.6 | 50.8 | 43.2 | 39.6 | 44.5 | 41.9 | 68.1 | 53.3 | 67.1 | 96.0 | 89 | 1882 1978 |
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| Date | 22 Jan 1884 | 05 Feb 1973 | 27 Mar 1902 | 22 Apr 1901 | 24 May 1890 | 22 Jun 1910 | 04 Jul 1936 | 26 Aug 1924 | 29 Sep 1962 | 03 Oct 1906 | 12 Nov 1949 | 01 Dec 1887 | 05 Feb 1973 | ||||
| Mean number of days of rain | 7.9 | 7.3 | 9.5 | 12.6 | 15.3 | 15.7 | 16.6 | 17.1 | 15.0 | 14.0 | 11.4 | 9.4 | 151.8 | 90 | 1882 1978 |
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| Mean number of days of rain ≥ 1 mm | 5.2 | 5.1 | 6.8 | 9.1 | 11.5 | 12.1 | 12.2 | 12.5 | 11.2 | 10.5 | 8.1 | 6.7 | 111.0 | 89 | 1882 1978 |
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| Mean number of days of rain ≥ 10 mm | 1.2 | 1.3 | 1.6 | 1.9 | 1.9 | 2.2 | 1.7 | 1.7 | 1.7 | 2.0 | 1.5 | 1.5 | 20.2 | 89 | 1882 1978 |
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| Mean number of days of rain ≥ 25 mm | 0.3 | 0.3 | 0.4 | 0.4 | 0.3 | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | 0.2 | 0.2 | 2.7 | 89 | 1882 1978 |
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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) | 24.5 | 21.4 | 16.4 | 11.0 | 7.5 | 6.3 | 7.0 | 9.9 | 13.8 | 18.4 | 22.0 | 24.5 | 15.2 | 35 | 1990 2025 |
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| Mean number of clear days | |
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| Mean number of cloudy days | |
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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) | 18.5 | 18.8 | 17.2 | 14.5 | 12.1 | 9.8 | 9.2 | 10.0 | 12.1 | 14.0 | 15.8 | 17.7 | 14.1 | 34 | 1915 1949 |
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| Mean 9am wet-bulb temperature (°C) | 15.2 | 15.7 | 14.4 | 12.6 | 10.7 | 8.7 | 8.0 | 8.6 | 10.1 | 11.6 | 13.1 | 14.5 | 11.9 | 34 | 1915 1949 |
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| Mean 9am dew-point temperature (°C) | |
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| Mean 9am relative humidity (%) | 68 | 71 | 72 | 79 | 82 | 85 | 84 | 81 | 76 | 73 | 71 | 69 | 76 | 34 | 1915 1949 |
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| Mean 9am cloud cover (oktas) | 4.8 | 4.7 | 5.1 | 5.3 | 5.4 | 5.5 | 5.2 | 5.0 | 4.9 | 5.3 | 5.3 | 5.1 | 5.1 | 34 | 1915 1949 |
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| Mean 9am wind speed (km/h) | |
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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) | |
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| Mean 3pm wet-bulb temperature (°C) | |
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| Mean 3pm dew-point temperature (°C) | |
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| Mean 3pm relative humidity (%) | |
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| Mean 3pm cloud cover (oktas) | |
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| Mean 3pm wind speed (km/h) | |
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| 3pm wind speed vs direction plot | |
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red = highest value
blue = lowest value
Product IDCJCM0035 Prepared at Thu 25 Sep 2025 00:01:46 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_086025_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_086025.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/IDCJCM0035_086025.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 00:01:46 AM AEST