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Climate statistics for Australian locations
Monthly climate statistics
All years of record
HUME RESERVOIR
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: HUME RESERVOIR | Site number: 072023 | Commenced: 1922 | Map | |
| Latitude: 36.10° S | Longitude: 147.03° E | Elevation: 184 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) | 30.9 | 30.5 | 27.2 | 21.8 | 16.8 | 13.1 | 12.3 | 14.3 | 17.5 | 21.2 | 25.2 | 28.7 | 21.6 | 93 | 1922 2025 |
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| Highest temperature (°C) | 45.5 | 44.9 | 39.2 | 34.8 | 28.2 | 21.6 | 21.3 | 24.3 | 30.7 | 35.2 | 40.5 | 42.1 | 45.5 | 58 | 1965 2025 |
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| Date | 31 Jan 2020 | 07 Feb 2009 | 08 Mar 1983 | 04 Apr 1986 | 03 May 2018 | 09 Jun 1995 | 28 Jul 1975 | 29 Aug 1982 | 19 Sep 2023 | 13 Oct 2006 | 21 Nov 2019 | 30 Dec 2019 | 31 Jan 2020 | ||||
| Lowest maximum temperature (°C) | 14.8 | 12.0 | 14.5 | 10.6 | 6.0 | 6.2 | 4.4 | 6.1 | 8.3 | 10.0 | 10.9 | 13.4 | 4.4 | 58 | 1965 2025 |
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| Date | 03 Jan 1970 | 03 Feb 2005 | 30 Mar 2019 | 27 Apr 2008 | 31 May 1977 | 27 Jun 1983 | 16 Jul 1966 | 16 Aug 1970 | 14 Sep 1969 | 01 Oct 1968 | 07 Nov 1971 | 27 Dec 1993 | 16 Jul 1966 | ||||
| Decile 1 maximum temperature (°C) | 24.8 | 25.1 | 21.5 | 17.1 | 13.2 | 10.4 | 9.5 | 11.0 | 13.2 | 16.2 | 19.1 | 22.2 | 54 | 1965 2024 |
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| Decile 9 maximum temperature(°C) | 37.1 | 36.0 | 32.4 | 26.8 | 21.0 | 16.5 | 15.2 | 18.0 | 21.5 | 26.5 | 31.7 | 34.4 | 54 | 1965 2024 |
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| Mean number of days ≥ 30 °C | 19.1 | 16.3 | 8.0 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.7 | 5.0 | 12.8 | 62.3 | 58 | 1965 2025 |
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| Mean number of days ≥ 35 °C | 6.5 | 4.2 | 1.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.8 | 2.8 | 15.4 | 58 | 1965 2025 |
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| Mean number of days ≥ 40 °C | 1.1 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 1.7 | 58 | 1965 2025 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 16.7 | 16.6 | 14.0 | 10.1 | 7.0 | 4.9 | 4.1 | 5.0 | 6.7 | 9.2 | 11.9 | 14.5 | 10.1 | 94 | 1922 2025 |
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| Lowest temperature (°C) | 6.8 | 6.7 | 3.6 | 1.1 | -1.7 | -2.7 | -2.8 | -2.3 | -1.8 | 1.2 | 2.8 | 4.4 | -2.8 | 59 | 1965 2025 |
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| Date | 12 Jan 1975 | 21 Feb 1970 | 30 Mar 1970 | 27 Apr 1978 | 25 May 1967 | 24 Jun 1965 | 26 Jul 1986 | 02 Aug 1979 | 06 Sep 1966 | 11 Oct 2003 | 12 Nov 1977 | 07 Dec 1969 | 26 Jul 1986 | ||||
| Highest minimum temperature (°C) | 28.9 | 28.2 | 26.8 | 20.6 | 17.2 | 13.5 | 15.0 | 13.0 | 16.5 | 20.0 | 24.1 | 28.4 | 28.9 | 59 | 1965 2025 |
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| Date | 26 Jan 2019 | 06 Feb 1973 | 04 Mar 1983 | 06 Apr 1989 | 02 May 2019 | 01 Jun 2013 | 31 Jul 1975 | 22 Aug 1998 | 10 Sep 2005 | 05 Oct 1970 | 18 Nov 1980 | 29 Dec 2018 | 26 Jan 2019 | ||||
| Decile 1 minimum temperature (°C) | 11.8 | 12.3 | 9.2 | 5.7 | 2.8 | 1.1 | 0.7 | 1.3 | 2.7 | 4.8 | 7.0 | 9.6 | 54 | 1965 2024 |
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| Decile 9 minimum temperature (°C) | 22.0 | 21.6 | 19.0 | 15.1 | 11.8 | 9.0 | 7.8 | 8.6 | 11.0 | 14.1 | 17.5 | 19.5 | 54 | 1965 2024 |
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| Mean number of days ≤ 2 °C | 0.0 | 0.0 | 0.0 | 0.1 | 1.8 | 4.9 | 6.6 | 4.4 | 1.9 | 0.2 | 0.0 | 0.0 | 19.9 | 59 | 1965 2025 |
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| Mean number of days ≤ 0 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 1.2 | 2.0 | 0.9 | 0.2 | 0.0 | 0.0 | 0.0 | 4.7 | 59 | 1965 2025 |
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| Ground surface temperature | |||||||||||||||||
| Mean daily ground minimum temperature (°C) | 13.4 | 13.7 | 10.6 | 6.9 | 4.4 | 2.6 | 1.8 | 2.3 | 3.3 | 5.5 | 8.6 | 10.7 | 7.0 | 46 | 1967 2016 |
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| Lowest ground temperature (°C) | 0.9 | 1.7 | -1.8 | -4.0 | -5.0 | -6.0 | -6.5 | -6.7 | -5.4 | -4.5 | -3.7 | 0.5 | -6.7 | 46 | 1967 2016 |
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| Date | 12 Jan 1975 | 17 Feb 1970 | 28 Mar 1984 | 30 Apr 1977 | 30 May 2006 | 12 Jun 2006 | 01 Jul 1971 | 04 Aug 2015 | 12 Sep 2011 | 09 Oct 2006 | 12 Nov 1977 | 21 Dec 1984 | 04 Aug 2015 | ||||
| Mean number of days ground min. temp. ≤ -1 °C | 0.0 | 0.0 | 0.0 | 0.4 | 2.9 | 5.1 | 7.6 | 6.0 | 4.1 | 1.4 | 0.2 | 0.0 | 27.7 | 46 | 1967 2016 |
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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) | 50.6 | 41.8 | 47.4 | 51.3 | 58.1 | 67.2 | 75.5 | 75.0 | 60.8 | 67.4 | 56.0 | 49.6 | 701.2 | 103 | 1922 2025 |
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| Highest rainfall (mm) | 317.8 | 240.8 | 241.8 | 185.8 | 161.4 | 201.4 | 191.8 | 174.7 | 135.2 | 214.7 | 183.4 | 197.3 | 1217.9 | 103 | 1922 2025 |
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| Date | 2022 | 2011 | 2012 | 1939 | 1988 | 1931 | 1986 | 1939 | 2016 | 1949 | 2022 | 1966 | 2022 | ||||
| Lowest rainfall (mm) | 0.5 | 0.0 | 0.3 | 0.0 | 0.0 | 7.2 | 17.0 | 4.8 | 5.4 | 2.6 | 0.0 | 0.0 | 270.2 | 103 | 1922 2025 |
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| Date | 1957 | 1982 | 1923 | 1923 | 1934 | 2017 | 1982 | 1944 | 1946 | 2006 | 1922 | 1925 | 2006 | ||||
| Decile 1 rainfall (mm) | 5.6 | 1.8 | 5.1 | 10.0 | 13.1 | 21.7 | 32.0 | 24.8 | 22.5 | 16.2 | 13.5 | 8.6 | 104 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 33.0 | 30.0 | 38.0 | 36.1 | 52.0 | 64.8 | 69.4 | 74.6 | 54.4 | 59.1 | 47.5 | 39.6 | 104 | n/a n/a |
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| Decile 9 rainfall (mm) | 111.9 | 87.8 | 97.2 | 118.5 | 123.5 | 105.8 | 133.1 | 122.4 | 113.9 | 125.4 | 103.5 | 105.9 | 104 | n/a n/a |
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| Highest daily rainfall (mm) | 134.2 | 124.0 | 92.6 | 83.2 | 57.6 | 49.4 | 53.8 | 83.2 | 53.8 | 66.4 | 62.2 | 80.0 | 134.2 | 104 | 1922 2025 |
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| Date | 30 Jan 2023 | 28 Feb 1939 | 01 Mar 2012 | 28 Apr 1992 | 19 May 1978 | 02 Jun 2013 | 06 Jul 1936 | 26 Aug 1983 | 29 Sep 2005 | 31 Oct 2010 | 16 Nov 1931 | 05 Dec 1933 | 30 Jan 2023 | ||||
| Mean number of days of rain | 5.7 | 5.3 | 5.9 | 7.1 | 10.2 | 12.7 | 14.6 | 13.8 | 11.2 | 10.1 | 8.2 | 6.7 | 111.5 | 103 | 1922 2025 |
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| Mean number of days of rain ≥ 1 mm | 4.3 | 3.9 | 4.7 | 5.4 | 7.5 | 9.0 | 10.7 | 10.6 | 8.5 | 7.9 | 6.2 | 5.1 | 83.8 | 104 | 1922 2025 |
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| Mean number of days of rain ≥ 10 mm | 1.6 | 1.4 | 1.6 | 1.6 | 1.8 | 2.1 | 2.2 | 2.2 | 1.9 | 2.2 | 1.8 | 1.6 | 22.0 | 104 | 1922 2025 |
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| Mean number of days of rain ≥ 25 mm | 0.5 | 0.4 | 0.4 | 0.4 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 | 0.5 | 0.5 | 0.4 | 4.7 | 104 | 1922 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) | 0 | 1974 1974 |
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| Maximum wind gust speed (km/h) | 102 | 111 | 84 | 102 | 141 | 85 | 102 | 102 | 130 | 118 | 126 | 115 | 141 | 24 | 1965 1995 |
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| Date | 15 Jan 1978 | 24 Feb 1967 | 31 Mar 1975 | 08 Apr 1966 | 24 May 1968 | 05 Jun 1968 | 28 Jul 1965 | 03 Aug 1969 | 26 Sep 1971 | 19 Oct 1970 | 25 Nov 1967 | 29 Dec 1969 | 24 May 1968 | ||||
| Mean daily sunshine (hours) | |
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| Mean daily solar exposure (MJ/m2) | 26.3 | 23.1 | 18.1 | 13.4 | 9.4 | 7.6 | 8.0 | 10.9 | 15.7 | 20.4 | 23.5 | 26.4 | 16.9 | 19 | 2007 2025 |
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| Mean number of clear days | 14.6 | 11.4 | 12.2 | 10.3 | 6.5 | 6.5 | 3.9 | 4.7 | 8.4 | 8.9 | 10.6 | 13.4 | 111.4 | 10 | 1967 1997 |
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| Mean number of cloudy days | 7.7 | 6.8 | 8.6 | 11.4 | 15.0 | 14.7 | 17.5 | 17.3 | 13.0 | 14.0 | 10.2 | 8.9 | 145.1 | 10 | 1967 1997 |
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| Mean daily evaporation (mm) | 7.7 | 6.9 | 5.0 | 2.9 | 1.5 | 1.0 | 1.0 | 1.5 | 2.4 | 3.7 | 5.5 | 6.9 | 3.8 | 50 | 1965 2024 |
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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) | 21.4 | 20.8 | 17.9 | 13.7 | 9.8 | 7.1 | 6.3 | 7.6 | 10.4 | 13.9 | 17.0 | 19.9 | 13.8 | 81 | 1922 2024 |
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| Mean 9am wet-bulb temperature (°C) | 16.7 | 16.7 | 14.8 | 11.7 | 8.8 | 6.4 | 5.6 | 6.7 | 8.8 | 11.5 | 13.7 | 15.3 | 11.4 | 80 | 1922 2024 |
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| Mean 9am dew-point temperature (°C) | 13.4 | 14.0 | 12.3 | 10.0 | 8.0 | 5.8 | 5.0 | 5.7 | 7.2 | 9.1 | 10.7 | 11.5 | 9.4 | 45 | 1965 2010 |
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| Mean 9am relative humidity (%) | 59 | 64 | 70 | 78 | 87 | 90 | 90 | 86 | 80 | 73 | 67 | 59 | 75 | 80 | 1922 2010 |
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| Mean 9am cloud cover (oktas) | 2.7 | 2.8 | 2.9 | 3.3 | 4.9 | 5.4 | 5.5 | 4.9 | 4.1 | 3.7 | 3.5 | 3.0 | 3.9 | 63 | 1940 2024 |
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| Mean 9am wind speed (km/h) | 8.7 | 7.7 | 7.6 | 7.0 | 6.5 | 6.2 | 6.5 | 7.8 | 8.6 | 8.6 | 8.6 | 9.3 | 7.8 | 44 | 1965 2024 |
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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) | 28.8 | 28.8 | 25.3 | 20.7 | 15.7 | 12.0 | 11.6 | 12.7 | 15.5 | 19.1 | 22.7 | 26.6 | 20.0 | 10 | 1967 1997 |
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| Mean 3pm wet-bulb temperature (°C) | 9 | 1967 1997 |
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| Mean 3pm dew-point temperature (°C) | 9 | 1967 1997 |
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| Mean 3pm relative humidity (%) | 9 | 1967 1997 |
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| Mean 3pm cloud cover (oktas) | 3.7 | 3.5 | 4.1 | 4.5 | 4.9 | 4.4 | 5.3 | 5.7 | 5.0 | 5.1 | 4.3 | 3.9 | 4.5 | 10 | 1967 1997 |
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| Mean 3pm wind speed (km/h) | 12.8 | 9.1 | 9.5 | 8.3 | 7.8 | 7.7 | 8.4 | 11.1 | 14.1 | 13.7 | 12.9 | 14.8 | 10.9 | 13 | 1967 1997 |
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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 16 Oct 2025 01:25:02 AM AEDT
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_072023_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_072023.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_072023.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
- Daily Weather Observations from this site are included in the Daily Weather Observations Hume Reservoir and Hunters Hill
Climate outlooks
- Monthly and seasonal climate outlooks
Additional climate information
Page created: Thu 16 Oct 2025 01:25:02 AM AEDT