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Climate statistics for Australian locations
Monthly climate statistics
All years of record
PERTH REGIONAL 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.
Site details
| Site name: PERTH REGIONAL OFFICE | Site number: 009034 | Commenced: 1876 | Map | |
| Latitude: 31.96° S | Longitude: 115.87° E | Elevation: 19 m | Operational status: Closed 30 Apr 1992 | |
| 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) | 29.7 | 30.0 | 28.0 | 24.6 | 20.9 | 18.3 | 17.4 | 18.0 | 19.5 | 21.4 | 24.6 | 27.4 | 23.3 | 95 | 1897 1992 |
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| Highest temperature (°C) | 45.8 | 46.2 | 42.3 | 37.6 | 32.4 | 28.1 | 26.3 | 27.8 | 32.7 | 37.3 | 40.3 | 42.3 | 46.2 | 95 | 1897 1992 |
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| Date | 31 Jan 1991 | 23 Feb 1991 | 05 Mar 1990 | 09 Apr 1910 | 02 May 1907 | 05 Jun 1975 | 18 Jul 1976 | 21 Aug 1940 | 30 Sep 1918 | 29 Oct 1967 | 24 Nov 1913 | 31 Dec 1968 | 23 Feb 1991 | ||||
| Lowest maximum temperature (°C) | 19.7 | 19.0 | 16.4 | 13.6 | 12.2 | 8.8 | 10.5 | 9.9 | 11.4 | 11.9 | 15.8 | 14.9 | 8.8 | 95 | 1897 1992 |
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| Date | 19 Jan 1939 | 17 Feb 1914 | 27 Mar 1968 | 16 Apr 1919 | 28 May 1917 | 26 Jun 1956 | 09 Jul 1906 | 05 Aug 1951 | 17 Sep 1917 | 08 Oct 1932 | 02 Nov 1919 | 17 Dec 1952 | 26 Jun 1956 | ||||
| Decile 1 maximum temperature (°C) | 23.6 | 24.1 | 22.8 | 20.3 | 17.4 | 15.4 | 14.9 | 15.3 | 16.2 | 17.6 | 20.0 | 22.0 | 97 | 1897 1992 |
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| Decile 9 maximum temperature(°C) | 37.2 | 37.0 | 34.3 | 30.0 | 24.8 | 21.2 | 20.0 | 21.1 | 23.5 | 26.7 | 31.6 | 34.8 | 97 | 1897 1992 |
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| Mean number of days ≥ 30 °C | 13.8 | 13.4 | 9.7 | 3.0 | 0.2 | 0.0 | 0.0 | 0.0 | 0.1 | 1.1 | 4.3 | 8.8 | 54.4 | 95 | 1897 1992 |
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| Mean number of days ≥ 35 °C | 5.6 | 5.0 | 2.3 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.9 | 3.0 | 17.2 | 95 | 1897 1992 |
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| Mean number of days ≥ 40 °C | 0.8 | 0.6 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 1.8 | 95 | 1897 1992 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 17.9 | 18.1 | 16.8 | 14.3 | 11.7 | 10.1 | 9.0 | 9.2 | 10.3 | 11.7 | 14.0 | 16.3 | 13.3 | 95 | 1897 1992 |
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| Lowest temperature (°C) | 9.2 | 8.7 | 7.7 | 4.1 | 1.3 | 1.6 | 1.2 | 1.8 | 2.6 | 4.2 | 5.6 | 8.6 | 1.2 | 95 | 1897 1992 |
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| Date | 20 Jan 1925 | 01 Feb 1902 | 08 Mar 1903 | 20 Apr 1914 | 11 May 1914 | 22 Jun 1955 | 07 Jul 1916 | 31 Aug 1908 | 06 Sep 1956 | 06 Oct 1968 | 01 Nov 1904 | 29 Dec 1957 | 07 Jul 1916 | ||||
| Highest minimum temperature (°C) | 27.8 | 29.3 | 28.3 | 24.4 | 20.8 | 18.7 | 16.1 | 16.6 | 19.5 | 22.2 | 25.1 | 27.1 | 29.3 | 95 | 1897 1992 |
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| Date | 21 Jan 1989 | 03 Feb 1962 | 02 Mar 1934 | 02 Apr 1913 | 01 May 1983 | 12 Jun 1988 | 12 Jul 1898 | 13 Aug 1976 | 08 Sep 1916 | 29 Oct 1979 | 24 Nov 1920 | 18 Dec 1979 | 03 Feb 1962 | ||||
| Decile 1 minimum temperature (°C) | 14.0 | 14.2 | 12.9 | 10.6 | 8.1 | 6.4 | 5.6 | 5.9 | 7.2 | 8.3 | 10.7 | 12.7 | 97 | 1897 1992 |
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| Decile 9 minimum temperature (°C) | 22.2 | 22.4 | 20.8 | 18.0 | 15.2 | 13.6 | 12.4 | 12.4 | 13.4 | 15.0 | 17.7 | 20.2 | 97 | 1897 1992 |
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| Mean number of days ≤ 2 °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 | 95 | 1897 1992 |
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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 | 95 | 1897 1992 |
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| Ground surface temperature | |||||||||||||||||
| Mean daily ground minimum temperature (°C) | 15.8 | 16.3 | 14.6 | 11.8 | 9.1 | 7.8 | 6.6 | 6.4 | 7.4 | 9.0 | 11.5 | 14.0 | 10.9 | 50 | 1942 1992 |
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| Lowest ground temperature (°C) | 5.9 | 5.3 | 2.6 | -0.7 | -3.9 | -2.2 | -4.1 | -3.0 | -2.7 | -0.6 | 1.6 | 3.3 | -4.1 | 50 | 1942 1992 |
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| Date | 02 Jan 1955 | 14 Feb 1959 | 16 Mar 1967 | 26 Apr 1960 | 31 May 1964 | 30 Jun 1990 | 12 Jul 1952 | 18 Aug 1966 | 06 Sep 1956 | 26 Oct 1971 | 01 Nov 1968 | 29 Dec 1957 | 12 Jul 1952 | ||||
| Mean number of days ground min. temp. ≤ -1 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 | 0.3 | 0.3 | 0.1 | 0.0 | 0.0 | 0.0 | 1.0 | 50 | 1942 1992 |
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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) | 8.6 | 13.3 | 19.3 | 45.3 | 122.7 | 182.4 | 172.9 | 134.6 | 79.9 | 54.5 | 21.7 | 13.9 | 867.5 | 116 | 1876 1992 |
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| Highest rainfall (mm) | 115.0 | 166.3 | 145.2 | 148.8 | 308.1 | 476.1 | 425.1 | 318.3 | 199.1 | 199.9 | 73.2 | 80.7 | 1338.8 | 116 | 1876 1992 |
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| Date | 1982 | 1955 | 1934 | 1926 | 1879 | 1945 | 1958 | 1945 | 1923 | 1890 | 1984 | 1951 | 1945 | ||||
| Lowest rainfall (mm) | 0.0 | 0.0 | 0.0 | 0.0 | 14.1 | 54.9 | 61.5 | 11.8 | 8.7 | 1.0 | 0.0 | 0.0 | 508.7 | 116 | 1876 1992 |
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| Date | 1981 | 1988 | 1973 | 1982 | 1964 | 1877 | 1876 | 1902 | 1916 | 1969 | 1891 | 1949 | 1940 | ||||
| Decile 1 rainfall (mm) | 0.5 | 0.0 | 1.1 | 7.8 | 48.6 | 99.6 | 95.8 | 67.9 | 30.8 | 24.6 | 3.8 | 1.0 | 685.1 | 112 | 1876 1992 |
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| Decile 5 (median) rainfall (mm) | 4.1 | 5.4 | 11.4 | 38.6 | 122.1 | 177.4 | 168.4 | 135.7 | 70.2 | 49.3 | 17.3 | 9.6 | 854.2 | 112 | 1876 1992 |
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| Decile 9 rainfall (mm) | 20.5 | 31.3 | 47.9 | 87.1 | 199.3 | 283.6 | 259.6 | 211.6 | 133.0 | 92.5 | 43.6 | 31.0 | 1047.2 | 112 | 1876 1992 |
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| Highest daily rainfall (mm) | 54.6 | 120.6 | 77.0 | 66.5 | 76.2 | 99.1 | 95.0 | 73.9 | 51.8 | 55.4 | 39.1 | 46.7 | 120.6 | 113 | 1877 1992 |
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| Date | 21 Jan 1982 | 09 Feb 1992 | 09 Mar 1934 | 30 Apr 1904 | 17 May 1942 | 10 Jun 1920 | 29 Jul 1987 | 14 Aug 1945 | 14 Sep 1984 | 01 Oct 1978 | 29 Nov 1956 | 03 Dec 1951 | 09 Feb 1992 | ||||
| Mean number of days of rain | 2.9 | 2.8 | 4.4 | 7.7 | 14.0 | 17.4 | 18.3 | 17.3 | 14.1 | 11.1 | 6.5 | 4.2 | 120.7 | 112 | 1876 1992 |
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| Mean number of days of rain ≥ 1 mm | 1.5 | 1.7 | 2.6 | 5.5 | 10.8 | 14.5 | 15.2 | 13.9 | 10.9 | 7.9 | 4.0 | 2.5 | 91.0 | 113 | 1877 1992 |
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| Mean number of days of rain ≥ 10 mm | 0.2 | 0.3 | 0.6 | 1.4 | 4.0 | 6.4 | 6.0 | 4.6 | 2.4 | 1.5 | 0.5 | 0.3 | 28.2 | 113 | 1877 1992 |
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| Mean number of days of rain ≥ 25 mm | 0.0 | 0.1 | 0.1 | 0.3 | 1.1 | 1.9 | 1.5 | 1.0 | 0.3 | 0.2 | 0.0 | 0.0 | 6.5 | 113 | 1877 1992 |
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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) | 355 | 343 | 308 | 267 | 247 | 268 | 262 | 273 | 283 | 307 | 339 | 351 | 300 | 45 | 1942 1991 |
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| Maximum wind gust speed (km/h) | 89 | 113 | 113 | 130 | 118 | 128 | 137 | 156 | 113 | 117 | 102 | 102 | 156 | 50 | 1942 1992 |
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| Date | 28 Jan 1990 | 20 Feb 1977 | 27 Mar 1960 | 04 Apr 1978 | 30 May 1962 | 25 Jun 1947 | 18 Jul 1964 | 22 Aug 1963 | 07 Sep 1973 | 03 Oct 1950 | 08 Nov 1950 | 06 Dec 1944 | 22 Aug 1963 | ||||
| Mean daily sunshine (hours) | 10.6 | 10.0 | 8.9 | 7.3 | 5.9 | 4.9 | 5.3 | 6.2 | 7.2 | 8.4 | 9.8 | 10.6 | 7.9 | 94 | 1898 1992 |
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| Mean daily solar exposure (MJ/m2) | 29.2 | 25.9 | 21.0 | 15.2 | 11.2 | 9.3 | 9.9 | 13.0 | 17.0 | 22.6 | 26.9 | 29.9 | 19.3 | 28 | 1990 2017 |
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| Mean number of clear days | 16.9 | 15.4 | 14.8 | 9.9 | 7.8 | 6.1 | 5.7 | 7.8 | 9.2 | 10.5 | 11.2 | 15.6 | 130.9 | 50 | 1942 1992 |
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| Mean number of cloudy days | 5.3 | 5.0 | 6.5 | 10.5 | 12.7 | 14.3 | 13.9 | 11.8 | 10.4 | 9.4 | 8.1 | 5.8 | 113.7 | 50 | 1942 1992 |
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| Mean daily evaporation (mm) | 8.3 | 7.8 | 6.3 | 4.0 | 2.5 | 1.9 | 1.8 | 2.3 | 3.3 | 4.8 | 6.3 | 7.6 | 4.7 | 50 | 1942 1992 |
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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) | 23.6 | 23.4 | 21.5 | 18.4 | 15.1 | 13.1 | 12.0 | 12.8 | 14.8 | 17.2 | 19.9 | 22.0 | 17.8 | 50 | 1942 1992 |
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| Mean 9am wet-bulb temperature (°C) | 17.2 | 17.4 | 16.3 | 14.6 | 12.4 | 11.2 | 10.2 | 10.5 | 11.8 | 13.1 | 14.6 | 16.2 | 13.8 | 50 | 1942 1992 |
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| Mean 9am dew-point temperature (°C) | 12.2 | 12.8 | 12.1 | 11.3 | 9.8 | 9.2 | 8.2 | 8.1 | 8.8 | 9.1 | 9.9 | 11.3 | 10.2 | 50 | 1942 1992 |
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| Mean 9am relative humidity (%) | 51 | 54 | 57 | 65 | 72 | 78 | 79 | 74 | 68 | 61 | 55 | 52 | 64 | 50 | 1942 1992 |
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| Mean 9am cloud cover (oktas) | 2.8 | 2.8 | 3.1 | 4.0 | 4.5 | 4.8 | 4.6 | 4.2 | 4.0 | 3.9 | 3.7 | 3.1 | 3.8 | 50 | 1942 1992 |
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| Mean 9am wind speed (km/h) | 14.0 | 14.3 | 13.1 | 10.7 | 9.7 | 10.5 | 10.6 | 10.7 | 11.5 | 13.1 | 14.0 | 13.3 | 12.1 | 50 | 1942 1992 |
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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) | 28.4 | 28.9 | 26.9 | 23.5 | 20.1 | 17.8 | 16.7 | 17.3 | 18.7 | 20.6 | 23.2 | 25.6 | 22.3 | 50 | 1942 1992 |
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| Mean 3pm wet-bulb temperature (°C) | 19.5 | 19.9 | 18.7 | 16.9 | 14.8 | 13.6 | 12.6 | 12.7 | 13.6 | 14.7 | 16.3 | 18.1 | 15.9 | 50 | 1942 1992 |
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| Mean 3pm dew-point temperature (°C) | 13.2 | 13.4 | 12.6 | 11.6 | 10.1 | 9.5 | 8.5 | 8.1 | 8.9 | 9.4 | 10.6 | 12.4 | 10.7 | 50 | 1942 1992 |
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| Mean 3pm relative humidity (%) | 43 | 42 | 44 | 50 | 55 | 61 | 60 | 57 | 55 | 51 | 48 | 47 | 51 | 50 | 1942 1992 |
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| Mean 3pm cloud cover (oktas) | 2.4 | 2.5 | 3.0 | 4.0 | 4.7 | 5.1 | 5.1 | 4.6 | 4.2 | 3.7 | 3.5 | 2.7 | 3.8 | 50 | 1942 1992 |
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| Mean 3pm wind speed (km/h) | 20.3 | 18.8 | 17.3 | 14.8 | 13.4 | 14.4 | 14.9 | 15.7 | 17.4 | 19.5 | 20.7 | 21.1 | 17.4 | 50 | 1942 1992 |
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| 3pm wind speed vs direction plot | |
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red = highest value
blue = lowest value
Product IDCJCM0039 Prepared at Thu 28 Sep 2023 01:59:28 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_009034_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_009034.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/IDCJCM0039_009034.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
- Latest Weather Observations over the past 72 hours for PERTH REGIONAL OFFICE
- Daily Weather Observations from this site are included in the Daily Weather Observations
Climate outlooks
- Monthly and seasonal climate outlooks
Additional climate information
Page created: Thu 28 Sep 2023 01:59:28 AM AEST