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Climate statistics for Australian locations
Monthly climate statistics
All years of record
COLAC (SHIRE OFFICE)
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: COLAC (SHIRE OFFICE) | Site number: 090147 | Commenced: 1898 | Map | |
| Latitude: 38.34° S | Longitude: 143.58° E | Elevation: 132 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) | 25.7 | 26.0 | 23.5 | 19.3 | 15.8 | 13.1 | 12.5 | 13.7 | 15.8 | 18.3 | 20.8 | 23.4 | 19.0 | 82 | 1899 1983 |
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| Highest temperature (°C) | 42.6 | 41.3 | 38.6 | 32.2 | 26.4 | 21.7 | 21.2 | 25.2 | 28.3 | 33.6 | 36.9 | 41.8 | 42.6 | 25 | 1957 1983 |
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| Date | 19 Jan 1959 | 16 Feb 1983 | 11 Mar 1978 | 05 Apr 1958 | 05 May 1981 | 02 Jun 1957 | 30 Jul 1975 | 29 Aug 1982 | 30 Sep 1961 | 27 Oct 1977 | 24 Nov 1982 | 10 Dec 1980 | 19 Jan 1959 | ||||
| Lowest maximum temperature (°C) | 15.6 | 14.4 | 14.1 | 10.0 | 6.6 | 6.7 | 7.4 | 6.7 | 8.9 | 10.2 | 12.2 | 13.3 | 6.6 | 25 | 1957 1983 |
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| Date | 13 Jan 1965 | 24 Feb 1964 | 30 Mar 1968 | 21 Apr 1960 | 31 May 1977 | 23 Jun 1981 | 06 Jul 1978 | 08 Aug 1960 | 15 Sep 1957 | 11 Oct 1972 | 16 Nov 1965 | 09 Dec 1964 | 31 May 1977 | ||||
| Decile 1 maximum temperature (°C) | 19.4 | 19.4 | 17.8 | 15.0 | 12.6 | 11.1 | 10.1 | 11.1 | 12.2 | 13.9 | 15.0 | 16.8 | 26 | 1957 1983 |
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| Decile 9 maximum temperature(°C) | 35.0 | 34.4 | 31.1 | 25.6 | 20.0 | 16.1 | 14.9 | 17.0 | 20.0 | 24.4 | 27.9 | 31.7 | 26 | 1957 1983 |
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| Mean number of days ≥ 30 °C | 8.3 | 7.3 | 4.0 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 1.7 | 4.8 | 26.7 | 25 | 1957 1983 |
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| Mean number of days ≥ 35 °C | 3.1 | 2.5 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 1.3 | 7.8 | 25 | 1957 1983 |
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| Mean number of days ≥ 40 °C | 0.5 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.8 | 25 | 1957 1983 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 10.7 | 11.2 | 10.1 | 8.0 | 6.2 | 4.5 | 3.9 | 4.5 | 5.8 | 6.9 | 8.3 | 9.4 | 7.5 | 81 | 1899 1983 |
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| Lowest temperature (°C) | 0.6 | 1.1 | 0.0 | -3.9 | -3.3 | -4.7 | -5.0 | -3.9 | -3.9 | -3.3 | -2.8 | -0.6 | -5.0 | 25 | 1957 1983 |
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| Date | 16 Jan 1957 | 25 Feb 1963 | 30 Mar 1965 | 15 Apr 1963 | 15 May 1957 | 17 Jun 1959 | 02 Jul 1960 | 04 Aug 1957 | 02 Sep 1959 | 04 Oct 1967 | 08 Nov 1967 | 06 Dec 1967 | 02 Jul 1960 | ||||
| Highest minimum temperature (°C) | 23.5 | 26.8 | 20.6 | 17.8 | 14.4 | 12.6 | 11.4 | 12.8 | 15.2 | 17.5 | 17.9 | 21.4 | 26.8 | 25 | 1957 1983 |
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| Date | 19 Jan 1973 | 15 Feb 1982 | 02 Mar 1983 | 01 Apr 1959 | 08 May 1980 | 01 Jun 1973 | 28 Jul 1975 | 26 Aug 1977 | 30 Sep 1973 | 13 Oct 1977 | 19 Nov 1975 | 04 Dec 1970 | 15 Feb 1982 | ||||
| Decile 1 minimum temperature (°C) | 4.9 | 5.6 | 5.0 | 2.9 | 1.7 | 0.2 | 0.0 | 0.6 | 1.5 | 2.2 | 3.4 | 4.9 | 26 | 1957 1983 |
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| Decile 9 minimum temperature (°C) | 15.9 | 16.4 | 15.0 | 12.3 | 10.1 | 8.3 | 7.2 | 7.9 | 9.4 | 11.2 | 12.6 | 14.3 | 26 | 1957 1983 |
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| Mean number of days ≤ 2 °C | 0.5 | 0.2 | 0.4 | 2.0 | 3.4 | 7.1 | 8.6 | 6.0 | 4.4 | 2.8 | 0.9 | 0.8 | 37.1 | 25 | 1957 1983 |
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| Mean number of days ≤ 0 °C | 0.0 | 0.0 | 0.1 | 0.3 | 1.2 | 2.6 | 3.4 | 2.0 | 1.2 | 0.6 | 0.1 | 0.1 | 11.6 | 25 | 1957 1983 |
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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) | 37.0 | 33.9 | 41.4 | 55.2 | 67.6 | 72.9 | 75.0 | 85.7 | 74.9 | 71.6 | 56.7 | 43.9 | 712.3 | 122 | 1898 2025 |
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| Highest rainfall (mm) | 163.0 | 167.2 | 125.4 | 154.4 | 167.5 | 166.0 | 175.3 | 202.8 | 137.4 | 204.8 | 142.1 | 145.2 | 1142.6 | 122 | 1898 2025 |
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| Date | 1991 | 1946 | 1946 | 1980 | 1968 | 1977 | 1964 | 1939 | 1979 | 1975 | 1953 | 1985 | 1964 | ||||
| Lowest rainfall (mm) | 1.3 | 0.0 | 2.6 | 0.0 | 9.5 | 17.3 | 13.0 | 16.8 | 18.6 | 2.0 | 5.4 | 1.8 | 448.3 | 122 | 1898 2025 |
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| Date | 1906 | 2009 | 2024 | 1923 | 1934 | 1937 | 1900 | 1914 | 2023 | 2015 | 1900 | 1904 | 1967 | ||||
| Decile 1 rainfall (mm) | 8.9 | 4.4 | 12.8 | 15.4 | 26.0 | 38.0 | 39.4 | 42.9 | 41.7 | 27.2 | 23.5 | 12.1 | 126 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 29.6 | 23.0 | 34.4 | 47.6 | 64.2 | 72.1 | 71.1 | 81.4 | 74.8 | 64.7 | 52.5 | 38.6 | 126 | n/a n/a |
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| Decile 9 rainfall (mm) | 80.5 | 73.2 | 80.4 | 102.2 | 113.8 | 111.9 | 118.1 | 139.2 | 115.8 | 117.5 | 97.3 | 78.4 | 126 | n/a n/a |
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| Highest daily rainfall (mm) | 91.0 | 102.9 | 60.5 | 104.6 | 55.1 | 37.4 | 34.5 | 51.1 | 47.2 | 49.5 | 61.0 | 55.9 | 104.6 | 120 | 1898 2025 |
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| Date | 24 Jan 1991 | 06 Feb 1973 | 02 Mar 1972 | 23 Apr 1980 | 31 May 1933 | 29 Jun 1980 | 15 Jul 1903 | 20 Aug 1951 | 22 Sep 1916 | 25 Oct 1975 | 30 Nov 1933 | 27 Dec 1907 | 23 Apr 1980 | ||||
| Mean number of days of rain | 7.9 | 6.6 | 9.4 | 12.5 | 16.5 | 17.3 | 19.6 | 19.5 | 17.1 | 15.4 | 12.2 | 10.1 | 164.1 | 124 | 1898 2025 |
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| Mean number of days of rain ≥ 1 mm | 4.9 | 4.2 | 5.7 | 7.9 | 10.6 | 11.7 | 12.6 | 13.3 | 11.9 | 10.3 | 8.0 | 6.4 | 107.5 | 120 | 1898 2025 |
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| Mean number of days of rain ≥ 10 mm | 1.0 | 0.9 | 1.2 | 1.5 | 2.0 | 1.9 | 2.0 | 2.4 | 2.0 | 2.1 | 1.8 | 1.2 | 20.0 | 120 | 1898 2025 |
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| Mean number of days of rain ≥ 25 mm | 0.3 | 0.3 | 0.2 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.2 | 2.9 | 120 | 1898 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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| Date | |||||||||||||||||
| Mean daily sunshine (hours) | |
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| Mean daily solar exposure (MJ/m2) | 24.6 | 21.2 | 16.1 | 10.8 | 7.5 | 6.2 | 6.8 | 9.7 | 13.4 | 17.9 | 21.5 | 24.3 | 15.0 | 35 | 1990 2025 |
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| Mean number of clear days | 8.7 | 8.4 | 6.2 | 4.8 | 3.0 | 2.4 | 2.2 | 2.6 | 3.3 | 3.8 | 4.3 | 5.6 | 55.3 | 24 | 1957 1983 |
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| Mean number of cloudy days | 10.1 | 8.0 | 13.2 | 15.0 | 17.5 | 17.3 | 18.2 | 17.9 | 16.8 | 16.8 | 15.8 | 14.4 | 181.0 | 24 | 1957 1983 |
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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) | 18.2 | 18.0 | 16.1 | 12.9 | 10.0 | 7.5 | 6.9 | 8.2 | 10.7 | 13.0 | 14.9 | 16.8 | 12.8 | 72 | 1908 1983 |
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| Mean 9am wet-bulb temperature (°C) | 14.8 | 14.9 | 13.7 | 11.4 | 9.1 | 6.8 | 6.2 | 7.2 | 9.1 | 10.9 | 12.3 | 13.8 | 10.9 | 70 | 1908 1983 |
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| Mean 9am dew-point temperature (°C) | 7 | 1957 1963 |
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| Mean 9am relative humidity (%) | 67 | 71 | 75 | 82 | 88 | 90 | 90 | 87 | 81 | 76 | 72 | 69 | 79 | 55 | 1906 1963 |
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| Mean 9am cloud cover (oktas) | 4.2 | 4.2 | 4.6 | 5.0 | 5.2 | 5.3 | 5.3 | 5.0 | 4.8 | 4.9 | 5.0 | 4.7 | 4.8 | 67 | 1908 1983 |
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| Mean 9am wind speed (km/h) | 17.2 | 14.4 | 14.0 | 12.0 | 10.7 | 9.4 | 10.0 | 11.8 | 16.0 | 17.7 | 18.6 | 18.1 | 14.2 | 23 | 1957 1983 |
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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) | 24.5 | 24.5 | 22.0 | 18.1 | 14.5 | 12.3 | 11.4 | 12.6 | 14.6 | 16.5 | 18.8 | 21.5 | 17.6 | 32 | 1946 1983 |
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| Mean 3pm wet-bulb temperature (°C) | 17.1 | 17.2 | 16.0 | 13.7 | 11.6 | 10.0 | 9.2 | 9.8 | 11.1 | 12.6 | 14.0 | 15.5 | 13.1 | 32 | 1946 1983 |
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| Mean 3pm dew-point temperature (°C) | 7 | 1957 1963 |
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| Mean 3pm relative humidity (%) | 46 | 50 | 52 | 62 | 72 | 76 | 77 | 71 | 65 | 66 | 62 | 54 | 63 | 15 | 1946 1963 |
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| Mean 3pm cloud cover (oktas) | 3.7 | 3.7 | 4.5 | 5.1 | 5.5 | 5.5 | 5.6 | 5.8 | 5.3 | 5.3 | 5.0 | 4.5 | 5.0 | 32 | 1946 1983 |
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| Mean 3pm wind speed (km/h) | 23.3 | 20.4 | 19.9 | 18.9 | 18.2 | 15.9 | 17.9 | 19.3 | 22.0 | 22.4 | 23.5 | 24.4 | 20.5 | 23 | 1957 1983 |
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| 3pm wind speed vs direction plot | |
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red = highest value
blue = lowest value
Product IDCJCM0035 Prepared at Wed 01 Oct 2025 23:58:03 PM 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_090147_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_090147.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_090147.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: Wed 01 Oct 2025 23:58:03 PM AEST