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Climate statistics for Australian locations
Monthly climate statistics
All years of record
SYDNEY (OBSERVATORY HILL)
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: SYDNEY (OBSERVATORY HILL) | Site number: 066062 | Commenced: 1858 | Map | |
| Latitude: 33.86° S | Longitude: 151.21° E | Elevation: 39 m | Operational status: Closed 31 Aug 2020 | |
| 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) | 26.0 | 25.8 | 24.8 | 22.5 | 19.5 | 17.0 | 16.4 | 17.9 | 20.1 | 22.2 | 23.7 | 25.3 | 21.8 | 162 | 1859 2020 |
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| Highest temperature (°C) | 45.8 | 42.1 | 39.8 | 35.4 | 30.0 | 26.9 | 26.5 | 31.3 | 34.6 | 38.2 | 41.8 | 42.2 | 45.8 | 162 | 1859 2020 |
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| Date | 18 Jan 2013 | 08 Feb 1926 | 09 Mar 1983 | 09 Apr 2018 | 01 May 1919 | 11 Jun 1931 | 30 Jul 2017 | 26 Aug 1995 | 26 Sep 1965 | 13 Oct 2004 | 25 Nov 1982 | 20 Dec 1957 | 18 Jan 2013 | ||||
| Lowest maximum temperature (°C) | 17.2 | 15.6 | 16.2 | 13.8 | 11.3 | 9.7 | 7.7 | 9.1 | 9.5 | 12.1 | 12.6 | 15.2 | 7.7 | 162 | 1859 2020 |
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| Date | 14 Jan 1948 | 28 Feb 1863 | 13 Mar 1886 | 22 Apr 1927 | 24 May 1904 | 13 Jun 1899 | 19 Jul 1868 | 09 Aug 1872 | 08 Sep 1869 | 02 Oct 1871 | 16 Nov 1988 | 24 Dec 1870 | 19 Jul 1868 | ||||
| Decile 1 maximum temperature (°C) | 22.1 | 22.2 | 21.3 | 18.9 | 16.2 | 14.1 | 13.4 | 14.4 | 16.0 | 17.6 | 19.3 | 21.1 | 162 | 1859 2020 |
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| Decile 9 maximum temperature(°C) | 30.1 | 29.4 | 28.2 | 26.1 | 23.0 | 20.1 | 19.6 | 21.7 | 25.1 | 27.8 | 28.9 | 30.2 | 162 | 1859 2020 |
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| Mean number of days ≥ 30 °C | 3.3 | 2.3 | 1.6 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 1.6 | 2.3 | 3.3 | 15.2 | 162 | 1859 2020 |
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| Mean number of days ≥ 35 °C | 0.9 | 0.5 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.6 | 0.8 | 3.2 | 162 | 1859 2020 |
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| Mean number of days ≥ 40 °C | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.3 | 162 | 1859 2020 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 18.8 | 18.9 | 17.6 | 14.8 | 11.6 | 9.3 | 8.1 | 9.0 | 11.1 | 13.6 | 15.7 | 17.6 | 13.8 | 162 | 1859 2020 |
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| Lowest temperature (°C) | 10.6 | 9.6 | 9.3 | 7.0 | 4.4 | 2.1 | 2.2 | 2.7 | 4.9 | 5.7 | 7.7 | 9.1 | 2.1 | 162 | 1859 2020 |
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| Date | 18 Jan 1949 | 28 Feb 1863 | 14 Mar 1886 | 27 Apr 1864 | 30 May 1862 | 22 Jun 1932 | 12 Jul 1890 | 03 Aug 1872 | 02 Sep 1945 | 06 Oct 1927 | 01 Nov 1905 | 03 Dec 1924 | 22 Jun 1932 | ||||
| Highest minimum temperature (°C) | 26.2 | 27.6 | 25.4 | 24.3 | 20.8 | 18.4 | 18.1 | 19.7 | 23.0 | 25.6 | 24.8 | 27.1 | 27.6 | 162 | 1859 2020 |
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| Date | 08 Jan 1994 | 06 Feb 2011 | 26 Mar 1876 | 05 Apr 1986 | 03 May 1942 | 18 Jun 1873 | 02 Jul 1942 | 30 Aug 1885 | 24 Sep 2017 | 03 Oct 1981 | 14 Nov 1967 | 14 Dec 2016 | 06 Feb 2011 | ||||
| Decile 1 minimum temperature (°C) | 16.1 | 16.1 | 14.7 | 11.5 | 8.6 | 6.4 | 5.5 | 6.2 | 7.9 | 10.2 | 12.4 | 14.6 | 162 | 1859 2020 |
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| Decile 9 minimum temperature (°C) | 21.3 | 21.4 | 20.4 | 17.9 | 14.7 | 12.5 | 11.0 | 12.1 | 14.7 | 17.0 | 18.7 | 20.3 | 162 | 1859 2020 |
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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 | 162 | 1859 2020 |
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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 | 162 | 1859 2020 |
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| Ground surface temperature | |||||||||||||||||
| Mean daily ground minimum temperature (°C) | 16.7 | 17.0 | 15.5 | 12.5 | 9.1 | 6.7 | 5.2 | 6.0 | 7.9 | 10.7 | 13.0 | 15.2 | 11.3 | 36 | 1955 1990 |
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| Lowest ground temperature (°C) | 8.9 | 9.7 | 6.7 | 3.3 | 0.8 | -0.5 | -3.9 | -1.0 | -0.4 | 2.3 | 1.9 | 7.8 | -3.9 | 36 | 1955 1990 |
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| Date | 02 Jan 1972 | 21 Feb 1966 | 09 Mar 1987 | 27 Apr 1970 | 27 May 1968 | 05 Jun 1973 | 26 Jul 1968 | 02 Aug 1986 | 12 Sep 1970 | 16 Oct 1970 | 21 Nov 1967 | 26 Dec 1968 | 26 Jul 1968 | ||||
| Mean number of days ground min. temp. ≤ -1 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 36 | 1955 1990 |
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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) | 101.2 | 119.3 | 131.6 | 126.5 | 117.4 | 133.1 | 96.3 | 80.2 | 68.1 | 76.7 | 83.8 | 77.1 | 1211.1 | 162 | 1858 2020 |
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| Highest rainfall (mm) | 387.1 | 630.6 | 521.4 | 622.1 | 585.0 | 642.7 | 336.1 | 482.6 | 355.8 | 285.0 | 517.2 | 401.9 | 2194.0 | 162 | 1858 2020 |
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| Date | 1911 | 1990 | 1942 | 1861 | 1919 | 1950 | 1950 | 1998 | 1879 | 1987 | 1961 | 1920 | 1950 | ||||
| Lowest rainfall (mm) | 5.6 | 3.0 | 8.4 | 1.4 | 3.0 | 4.1 | 1.8 | 0.0 | 0.2 | 0.6 | 1.9 | 1.6 | 583.0 | 162 | 1858 2020 |
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| Date | 1985 | 1939 | 1965 | 1868 | 2008 | 1962 | 1970 | 1995 | 2017 | 1988 | 1915 | 2019 | 1888 | ||||
| Decile 1 rainfall (mm) | 26.1 | 19.9 | 32.0 | 23.3 | 16.8 | 24.9 | 11.2 | 8.6 | 13.8 | 18.3 | 16.1 | 21.6 | 163 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 78.2 | 93.6 | 101.9 | 95.2 | 90.2 | 102.8 | 72.2 | 54.9 | 51.9 | 55.4 | 66.8 | 59.7 | 163 | n/a n/a |
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| Decile 9 rainfall (mm) | 190.5 | 255.4 | 278.8 | 268.3 | 265.9 | 300.0 | 221.0 | 185.1 | 148.9 | 174.6 | 165.0 | 160.8 | 163 | n/a n/a |
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| Highest daily rainfall (mm) | 191.0 | 243.6 | 280.7 | 191.0 | 212.3 | 150.6 | 198.1 | 327.6 | 144.5 | 161.8 | 234.6 | 126.0 | 327.6 | 162 | 1858 2020 |
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| Date | 17 Jan 1988 | 03 Feb 1990 | 28 Mar 1942 | 29 Apr 1860 | 28 May 1889 | 11 Jun 1991 | 07 Jul 1931 | 06 Aug 1986 | 10 Sep 1879 | 13 Oct 1902 | 09 Nov 1984 | 09 Dec 1970 | 06 Aug 1986 | ||||
| Mean number of days of rain | 12.1 | 12.5 | 13.7 | 12.8 | 12.9 | 12.6 | 11.1 | 10.3 | 10.5 | 11.6 | 11.6 | 11.5 | 143.2 | 162 | 1858 2020 |
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| Mean number of days of rain ≥ 1 mm | 8.6 | 9.0 | 9.9 | 8.9 | 8.6 | 8.8 | 7.4 | 7.1 | 7.1 | 7.9 | 8.3 | 7.9 | 99.5 | 162 | 1858 2020 |
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| Mean number of days of rain ≥ 10 mm | 2.7 | 3.0 | 3.5 | 3.3 | 3.2 | 3.6 | 2.7 | 2.1 | 1.9 | 2.0 | 2.4 | 2.2 | 32.6 | 162 | 1858 2020 |
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| Mean number of days of rain ≥ 25 mm | 1.1 | 1.2 | 1.4 | 1.4 | 1.3 | 1.6 | 1.0 | 0.8 | 0.6 | 0.7 | 0.7 | 0.7 | 12.5 | 162 | 1858 2020 |
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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) | 316 | 296 | 272 | 274 | 284 | 304 | 323 | 331 | 323 | 322 | 332 | 326 | 309 | 37 | 1955 1992 |
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| Maximum wind gust speed (km/h) | 150 | 111 | 97 | 106 | 135 | 135 | 106 | 113 | 131 | 113 | 118 | 121 | 150 | 37 | 1955 1992 |
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| Date | 19 Jan 1958 | 11 Feb 1978 | 02 Mar 1985 | 22 Apr 1972 | 04 May 1971 | 10 Jun 1956 | 20 Jul 1959 | 21 Aug 1981 | 30 Sep 1968 | 10 Oct 1957 | 10 Nov 1977 | 02 Dec 1957 | 19 Jan 1958 | ||||
| Mean daily sunshine (hours) | 7.1 | 6.7 | 6.4 | 6.4 | 5.9 | 5.5 | 6.4 | 7.1 | 7.2 | 7.2 | 7.8 | 7.6 | 6.8 | 37 | 1955 1992 |
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| Mean daily solar exposure (MJ/m2) | 22.6 | 19.9 | 16.7 | 13.5 | 10.3 | 8.6 | 9.8 | 13.1 | 16.8 | 19.9 | 21.6 | 23.0 | 16.3 | 35 | 1990 2024 |
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| Mean number of clear days | 6.8 | 5.3 | 7.1 | 9.1 | 9.5 | 9.1 | 12.0 | 13.4 | 10.9 | 8.1 | 6.0 | 6.6 | 103.9 | 56 | 1955 2010 |
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| Mean number of cloudy days | 13.4 | 13.0 | 12.8 | 10.7 | 10.8 | 10.9 | 8.7 | 7.7 | 8.5 | 11.4 | 12.5 | 12.8 | 133.2 | 56 | 1955 2010 |
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| Mean daily evaporation (mm) | 4.6 | 3.9 | 3.1 | 2.6 | 1.9 | 1.2 | 1.5 | 1.9 | 2.5 | 3.3 | 4.3 | 4.4 | 2.9 | 12 | 1955 1966 |
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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) | 22.5 | 22.3 | 21.1 | 18.2 | 14.6 | 11.9 | 10.9 | 12.5 | 15.7 | 18.5 | 19.9 | 21.6 | 17.5 | 56 | 1955 2010 |
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| Mean 9am wet-bulb temperature (°C) | 19.0 | 19.3 | 18.1 | 15.3 | 12.1 | 9.7 | 8.5 | 9.5 | 11.9 | 14.3 | 16.0 | 17.7 | 14.3 | 56 | 1955 2010 |
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| Mean 9am dew-point temperature (°C) | 16.6 | 17.3 | 16.0 | 12.9 | 9.7 | 7.2 | 5.5 | 5.9 | 8.0 | 10.5 | 12.8 | 14.9 | 11.4 | 56 | 1955 2010 |
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| Mean 9am relative humidity (%) | 71 | 74 | 74 | 72 | 74 | 74 | 71 | 66 | 62 | 61 | 66 | 67 | 69 | 56 | 1955 2010 |
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| Mean 9am cloud cover (oktas) | 4.9 | 5.2 | 4.7 | 4.1 | 4.0 | 4.0 | 3.5 | 3.3 | 3.8 | 4.4 | 4.8 | 4.9 | 4.3 | 56 | 1955 2010 |
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| Mean 9am wind speed (km/h) | 8.6 | 8.2 | 7.9 | 8.8 | 10.5 | 11.9 | 13.1 | 13.3 | 12.4 | 12.2 | 11.0 | 9.8 | 10.6 | 37 | 1955 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) | 24.8 | 24.9 | 24.0 | 22.0 | 19.4 | 16.9 | 16.4 | 17.5 | 19.2 | 20.7 | 22.1 | 23.8 | 21.0 | 56 | 1955 2010 |
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| Mean 3pm wet-bulb temperature (°C) | 19.8 | 20.2 | 19.1 | 17.0 | 14.5 | 12.4 | 11.4 | 11.9 | 13.5 | 15.3 | 16.9 | 18.5 | 15.9 | 56 | 1955 2010 |
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| Mean 3pm dew-point temperature (°C) | 16.6 | 17.2 | 15.8 | 13.1 | 10.1 | 7.8 | 5.7 | 5.9 | 7.9 | 10.5 | 12.8 | 14.8 | 11.5 | 56 | 1955 2010 |
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| Mean 3pm relative humidity (%) | 62 | 64 | 62 | 59 | 57 | 57 | 51 | 49 | 51 | 56 | 58 | 59 | 57 | 56 | 1955 2010 |
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| Mean 3pm cloud cover (oktas) | 4.6 | 4.8 | 4.5 | 4.2 | 4.3 | 4.4 | 3.8 | 3.7 | 3.9 | 4.4 | 4.7 | 4.6 | 4.3 | 56 | 1955 2010 |
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| Mean 3pm wind speed (km/h) | 17.9 | 16.8 | 15.2 | 13.8 | 12.7 | 13.6 | 15.3 | 17.6 | 18.3 | 19.1 | 19.4 | 19.5 | 16.6 | 37 | 1955 1991 |
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| 3pm wind speed vs direction plot | |
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red = highest value
blue = lowest value
Product IDCJCM0037 Prepared at Thu 03 Oct 2024 01:19:42 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_066062_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_066062.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/IDCJCM0037_066062.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 03 Oct 2024 01:19:42 AM AEST