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Climate statistics for Australian locations
Monthly climate statistics
All years of record
NORTHAM
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: NORTHAM | Site number: 010111 | Commenced: 1877 | Map | |
| Latitude: 31.65° S | Longitude: 116.66° E | Elevation: 170 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) | 34.3 | 33.7 | 30.8 | 26.1 | 21.3 | 18.0 | 17.0 | 18.0 | 20.6 | 24.2 | 28.7 | 32.2 | 25.4 | 121 | 1902 2025 |
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| Highest temperature (°C) | 46.3 | 48.1 | 43.9 | 39.5 | 35.2 | 27.2 | 25.2 | 29.7 | 34.7 | 40.0 | 44.1 | 45.6 | 48.1 | 116 | 1907 2025 |
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| Date | 12 Jan 2014 | 03 Feb 2007 | 06 Mar 1954 | 02 Apr 1972 | 01 May 2002 | 02 Jun 1914 | 18 Jul 2007 | 31 Aug 2023 | 28 Sep 2023 | 30 Oct 2013 | 22 Nov 1923 | 19 Dec 1954 | 03 Feb 2007 | ||||
| Lowest maximum temperature (°C) | 17.4 | 15.7 | 15.6 | 13.8 | 10.0 | 10.0 | 10.0 | 8.9 | 8.3 | 12.2 | 13.3 | 16.1 | 8.3 | 116 | 1907 2025 |
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| Date | 10 Jan 1927 | 09 Feb 2017 | 28 Mar 1964 | 21 Apr 1970 | 24 May 1947 | 18 Jun 1931 | 16 Jul 1909 | 05 Aug 1951 | 02 Sep 1917 | 05 Oct 1968 | 19 Nov 1992 | 17 Dec 1952 | 02 Sep 1917 | ||||
| Decile 1 maximum temperature (°C) | 28.2 | 27.8 | 25.0 | 20.9 | 17.2 | 15.0 | 14.2 | 15.0 | 16.7 | 18.9 | 22.3 | 25.8 | 115 | 1907 2025 |
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| Decile 9 maximum temperature(°C) | 40.6 | 40.0 | 37.2 | 32.0 | 26.1 | 21.2 | 20.0 | 21.5 | 25.6 | 30.4 | 35.6 | 38.8 | 115 | 1907 2025 |
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| Mean number of days ≥ 30 °C | 24.9 | 21.9 | 16.9 | 5.9 | 0.5 | 0.0 | 0.0 | 0.0 | 0.5 | 3.7 | 11.4 | 20.6 | 106.3 | 116 | 1907 2025 |
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| Mean number of days ≥ 35 °C | 14.0 | 11.6 | 6.6 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 3.8 | 9.4 | 46.8 | 116 | 1907 2025 |
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| Mean number of days ≥ 40 °C | 3.9 | 2.9 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 2.0 | 9.9 | 116 | 1907 2025 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 17.2 | 17.2 | 15.5 | 12.0 | 8.4 | 6.4 | 5.4 | 5.6 | 6.9 | 9.0 | 12.5 | 15.4 | 11.0 | 121 | 1902 2025 |
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| Lowest temperature (°C) | 7.3 | 7.9 | 4.9 | 0.6 | -2.3 | -3.9 | -3.2 | -1.7 | -1.4 | -0.3 | 2.1 | 4.5 | -3.9 | 116 | 1907 2025 |
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| Date | 20 Jan 1925 | 03 Feb 2003 | 24 Mar 2001 | 29 Apr 1954 | 25 May 2012 | 26 Jun 1961 | 08 Jul 2013 | 01 Aug 2016 | 01 Sep 2005 | 01 Oct 1929 | 01 Nov 1968 | 06 Dec 2007 | 26 Jun 1961 | ||||
| Highest minimum temperature (°C) | 28.9 | 29.8 | 27.3 | 24.4 | 20.0 | 16.1 | 15.6 | 14.7 | 16.7 | 21.7 | 25.6 | 26.6 | 29.8 | 116 | 1907 2025 |
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| Date | 21 Jan 1961 | 10 Feb 1937 | 22 Mar 1939 | 08 Apr 1938 | 10 May 1962 | 04 Jun 1952 | 08 Jul 1940 | 08 Aug 2013 | 08 Sep 1916 | 24 Oct 1981 | 23 Nov 1919 | 15 Dec 1936 | 10 Feb 1937 | ||||
| Decile 1 minimum temperature (°C) | 13.5 | 13.3 | 11.4 | 7.6 | 3.8 | 1.7 | 0.9 | 1.6 | 2.8 | 4.7 | 8.3 | 11.3 | 114 | 1907 2025 |
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| Decile 9 minimum temperature (°C) | 21.5 | 21.3 | 19.6 | 16.7 | 13.3 | 11.2 | 10.0 | 10.0 | 11.2 | 13.3 | 16.7 | 19.5 | 114 | 1907 2025 |
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| Mean number of days ≤ 2 °C | 0.0 | 0.0 | 0.0 | 0.1 | 1.0 | 3.5 | 5.6 | 4.3 | 1.7 | 0.3 | 0.0 | 0.0 | 16.5 | 116 | 1907 2025 |
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| Mean number of days ≤ 0 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.7 | 1.5 | 0.7 | 0.2 | 0.0 | 0.0 | 0.0 | 3.3 | 116 | 1907 2025 |
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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) | 11.6 | 13.7 | 19.4 | 23.2 | 54.4 | 77.4 | 81.4 | 61.4 | 36.8 | 24.4 | 12.5 | 9.0 | 424.1 | 144 | 1877 2025 |
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| Highest rainfall (mm) | 135.4 | 189.8 | 188.9 | 99.2 | 148.3 | 232.9 | 221.3 | 170.0 | 128.5 | 100.3 | 85.7 | 65.8 | 710.9 | 144 | 1877 2025 |
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| Date | 2006 | 1955 | 1934 | 2008 | 1967 | 1945 | 1958 | 1955 | 1903 | 1889 | 1983 | 1952 | 1955 | ||||
| Lowest rainfall (mm) | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 5.6 | 13.6 | 3.1 | 2.6 | 0.0 | 0.0 | 0.0 | 194.1 | 144 | 1877 2025 |
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| Date | 2022 | 2023 | 2004 | 2024 | 1949 | 2013 | 2012 | 1956 | 1939 | 1878 | 1960 | 2021 | 1914 | ||||
| Decile 1 rainfall (mm) | 0.0 | 0.0 | 0.0 | 2.2 | 14.8 | 30.1 | 35.2 | 27.7 | 13.5 | 4.2 | 0.3 | 0.0 | 145 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 1.5 | 4.4 | 8.3 | 17.3 | 49.6 | 74.0 | 73.4 | 61.2 | 33.8 | 18.9 | 9.4 | 3.3 | 145 | n/a n/a |
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| Decile 9 rainfall (mm) | 33.3 | 40.5 | 43.8 | 51.5 | 105.1 | 126.0 | 131.7 | 93.6 | 63.3 | 50.5 | 28.4 | 33.6 | 145 | n/a n/a |
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| Highest daily rainfall (mm) | 101.6 | 115.6 | 126.2 | 74.7 | 68.5 | 67.1 | 53.8 | 36.3 | 33.6 | 59.8 | 34.3 | 49.5 | 126.2 | 122 | 1877 2025 |
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| Date | 29 Jan 1990 | 16 Feb 1955 | 09 Mar 1934 | 02 Apr 1964 | 05 May 2021 | 07 Jun 1981 | 27 Jul 1967 | 16 Aug 2022 | 26 Sep 2008 | 18 Oct 1995 | 17 Nov 1983 | 03 Dec 1940 | 09 Mar 1934 | ||||
| Mean number of days of rain | 1.9 | 2.2 | 3.1 | 5.5 | 10.4 | 14.2 | 15.9 | 13.9 | 10.7 | 7.1 | 4.0 | 2.3 | 91.2 | 122 | 1877 2025 |
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| Mean number of days of rain ≥ 1 mm | 1.1 | 1.3 | 1.7 | 3.0 | 6.0 | 8.4 | 9.3 | 8.0 | 5.8 | 3.8 | 2.2 | 1.3 | 51.9 | 122 | 1877 2025 |
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| Mean number of days of rain ≥ 10 mm | 0.3 | 0.3 | 0.4 | 0.5 | 1.3 | 2.0 | 2.1 | 1.4 | 0.6 | 0.4 | 0.2 | 0.2 | 9.7 | 122 | 1877 2025 |
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| Mean number of days of rain ≥ 25 mm | 0.1 | 0.1 | 0.2 | 0.1 | 0.3 | 0.3 | 0.2 | 0.1 | 0.0 | 0.1 | 0.0 | 0.0 | 1.5 | 122 | 1877 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) | 28.7 | 25.3 | 20.6 | 15.4 | 11.7 | 9.8 | 10.4 | 13.1 | 17.4 | 22.8 | 26.5 | 29.4 | 19.3 | 35 | 1990 2025 |
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| Mean number of clear days | 18.9 | 15.5 | 15.3 | 11.1 | 8.9 | 7.1 | 6.8 | 7.9 | 8.6 | 11.2 | 12.5 | 17.5 | 141.3 | 38 | 1965 2010 |
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| Mean number of cloudy days | 3.9 | 4.2 | 5.8 | 8.8 | 9.7 | 10.6 | 11.4 | 9.8 | 8.6 | 7.4 | 5.9 | 3.9 | 90.0 | 38 | 1965 2010 |
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| Mean daily evaporation (mm) | 4 | 1987 1991 |
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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) | 24.0 | 23.3 | 21.2 | 17.6 | 13.0 | 10.3 | 9.2 | 10.2 | 13.0 | 16.8 | 20.4 | 23.0 | 16.8 | 44 | 1965 2010 |
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| Mean 9am wet-bulb temperature (°C) | 17.6 | 17.7 | 16.4 | 14.6 | 11.4 | 9.3 | 8.5 | 9.3 | 11.1 | 13.1 | 14.9 | 16.6 | 13.4 | 33 | 1965 2010 |
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| Mean 9am dew-point temperature (°C) | 13.6 | 14.0 | 13.0 | 12.2 | 10.2 | 8.5 | 7.8 | 8.1 | 9.4 | 10.0 | 10.7 | 12.1 | 10.8 | 19 | 1976 2010 |
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| Mean 9am relative humidity (%) | 55 | 59 | 62 | 71 | 84 | 89 | 91 | 87 | 79 | 66 | 56 | 54 | 71 | 19 | 1976 2010 |
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| Mean 9am cloud cover (oktas) | 2.1 | 2.5 | 3.0 | 3.6 | 3.8 | 4.1 | 4.3 | 3.8 | 3.6 | 3.6 | 3.1 | 2.3 | 3.3 | 38 | 1965 2010 |
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| Mean 9am wind speed (km/h) | 13.2 | 12.6 | 11.0 | 7.9 | 4.8 | 4.3 | 4.2 | 5.2 | 8.5 | 11.7 | 12.8 | 12.8 | 9.1 | 42 | 1965 2010 |
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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) | 33.0 | 32.6 | 29.7 | 25.3 | 20.8 | 17.3 | 16.3 | 17.0 | 19.3 | 23.2 | 27.1 | 30.9 | 24.4 | 44 | 1965 2010 |
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| Mean 3pm wet-bulb temperature (°C) | 20.5 | 20.7 | 19.2 | 17.5 | 15.1 | 13.2 | 12.4 | 12.8 | 13.9 | 15.5 | 17.0 | 19.0 | 16.4 | 33 | 1965 2010 |
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| Mean 3pm dew-point temperature (°C) | 12.4 | 13.2 | 12.4 | 11.8 | 10.6 | 9.5 | 9.3 | 9.0 | 9.4 | 9.3 | 9.2 | 10.6 | 10.6 | 19 | 1976 2010 |
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| Mean 3pm relative humidity (%) | 31 | 34 | 37 | 45 | 54 | 62 | 64 | 60 | 55 | 44 | 35 | 32 | 46 | 19 | 1976 2010 |
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| Mean 3pm cloud cover (oktas) | 2.2 | 2.5 | 2.9 | 3.7 | 4.2 | 4.8 | 4.7 | 4.6 | 4.0 | 3.6 | 3.2 | 2.4 | 3.6 | 38 | 1965 2010 |
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| Mean 3pm wind speed (km/h) | 13.2 | 12.1 | 11.7 | 10.8 | 10.2 | 10.7 | 11.3 | 11.8 | 13.4 | 13.6 | 14.2 | 13.2 | 12.2 | 41 | 1965 2010 |
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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 18 Sep 2025 00:54:36 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_010111_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_010111.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_010111.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 Northam
Climate outlooks
- Monthly and seasonal climate outlooks
Additional climate information
Page created: Thu 18 Sep 2025 00:54:36 AM AEST