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Climate statistics for Australian locations
Monthly climate statistics
All years of record
ONSLOW AIRPORT
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: ONSLOW AIRPORT | Site number: 005017 | Commenced: 1940 | Map | |
| Latitude: 21.67° S | Longitude: 115.11° E | Elevation: 11 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) | 36.5 | 36.4 | 36.3 | 34.0 | 29.4 | 26.1 | 25.6 | 27.5 | 30.3 | 33.0 | 34.4 | 36.0 | 32.1 | 59 | 1943 2025 |
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| Highest temperature (°C) | 50.7 | 48.1 | 47.2 | 43.4 | 38.8 | 33.5 | 33.4 | 37.7 | 41.7 | 46.0 | 44.8 | 49.2 | 50.7 | 59 | 1940 2025 |
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| Date | 13 Jan 2022 | 03 Feb 1959 | 10 Mar 2019 | 01 Apr 1970 | 01 May 2013 | 10 Jun 2013 | 14 Jul 2017 | 27 Aug 2017 | 28 Sep 2023 | 22 Oct 2002 | 27 Nov 2007 | 22 Dec 2011 | 13 Jan 2022 | ||||
| Lowest maximum temperature (°C) | 24.0 | 24.9 | 23.1 | 21.3 | 16.2 | 17.0 | 16.0 | 17.4 | 21.9 | 25.3 | 21.7 | 26.1 | 16.0 | 59 | 1940 2025 |
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| Date | 31 Jan 1946 | 11 Feb 1961 | 26 Mar 2008 | 30 Apr 1956 | 05 May 1970 | 09 Jun 2001 | 08 Jul 1998 | 13 Aug 1974 | 13 Sep 1959 | 05 Oct 1964 | 14 Nov 1971 | 31 Dec 1945 | 08 Jul 1998 | ||||
| Decile 1 maximum temperature (°C) | 31.5 | 32.0 | 32.0 | 30.2 | 25.3 | 22.9 | 22.7 | 24.3 | 26.6 | 28.2 | 29.3 | 30.8 | 57 | 1940 2025 |
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| Decile 9 maximum temperature(°C) | 42.2 | 41.6 | 40.7 | 37.9 | 33.1 | 29.1 | 28.4 | 30.8 | 34.1 | 37.9 | 39.8 | 41.4 | 57 | 1940 2025 |
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| Mean number of days ≥ 30 °C | 30.0 | 27.1 | 29.9 | 27.0 | 13.7 | 1.6 | 1.1 | 5.2 | 15.1 | 23.7 | 25.9 | 28.9 | 229.2 | 59 | 1940 2025 |
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| Mean number of days ≥ 35 °C | 18.3 | 17.1 | 19.7 | 10.9 | 1.3 | 0.0 | 0.0 | 0.2 | 2.3 | 9.6 | 12.5 | 17.4 | 109.3 | 59 | 1940 2025 |
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| Mean number of days ≥ 40 °C | 6.3 | 5.2 | 4.7 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 1.3 | 2.9 | 5.9 | 27.2 | 59 | 1940 2025 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 24.6 | 25.2 | 24.4 | 21.6 | 17.5 | 14.4 | 13.1 | 13.8 | 15.7 | 18.1 | 20.2 | 22.6 | 19.3 | 59 | 1943 2025 |
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| Lowest temperature (°C) | 16.3 | 18.2 | 16.0 | 11.8 | 7.5 | 3.5 | 4.0 | 5.1 | 8.4 | 11.5 | 13.1 | 16.4 | 3.5 | 59 | 1943 2025 |
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| Date | 01 Jan 1953 | 10 Feb 1961 | 27 Mar 2001 | 28 Apr 1968 | 22 May 1944 | 29 Jun 1946 | 23 Jul 1951 | 10 Aug 1968 | 01 Sep 1943 | 06 Oct 1968 | 09 Nov 1962 | 03 Dec 1952 | 29 Jun 1946 | ||||
| Highest minimum temperature (°C) | 32.0 | 31.4 | 32.1 | 28.7 | 25.1 | 23.3 | 21.9 | 23.2 | 23.9 | 26.9 | 28.3 | 31.4 | 32.1 | 59 | 1943 2025 |
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| Date | 21 Jan 2003 | 21 Feb 2015 | 04 Mar 2025 | 01 Apr 1951 | 18 May 1969 | 05 Jun 2018 | 16 Jul 1974 | 16 Aug 1960 | 15 Sep 1974 | 12 Oct 2015 | 22 Nov 2015 | 30 Dec 2019 | 04 Mar 2025 | ||||
| Decile 1 minimum temperature (°C) | 21.4 | 22.4 | 21.4 | 18.3 | 13.8 | 10.4 | 9.3 | 10.4 | 12.8 | 15.0 | 17.3 | 19.3 | 57 | 1943 2025 |
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| Decile 9 minimum temperature (°C) | 27.2 | 27.7 | 27.0 | 24.7 | 21.0 | 18.4 | 17.0 | 17.0 | 18.5 | 21.0 | 23.2 | 25.6 | 57 | 1943 2025 |
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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 | 59 | 1943 2025 |
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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 | 59 | 1943 2025 |
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| Ground surface temperature | |||||||||||||||||
| Mean daily ground minimum temperature (°C) | 9 | 1965 1975 |
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| Lowest ground temperature (°C) | 9 | 1965 1975 |
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| Date | |||||||||||||||||
| Mean number of days ground min. temp. ≤ -1 °C | 9 | 1965 1975 |
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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) | 37.8 | 56.3 | 67.3 | 12.2 | 50.7 | 44.8 | 18.4 | 8.3 | 1.6 | 0.8 | 2.5 | 3.2 | 302.9 | 62 | 1940 2025 |
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| Highest rainfall (mm) | 275.6 | 358.6 | 374.9 | 163.4 | 310.4 | 230.8 | 115.4 | 81.8 | 24.7 | 15.0 | 60.2 | 54.0 | 1085.1 | 62 | 1940 2025 |
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| Date | 2009 | 1961 | 1958 | 1970 | 2022 | 1948 | 2016 | 1941 | 1970 | 2008 | 1949 | 1998 | 1961 | ||||
| Lowest rainfall (mm) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 26.0 | 62 | 1940 2025 |
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| Date | 2024 | 2020 | 2016 | 2023 | 2023 | 2007 | 2017 | 2015 | 2021 | 2023 | 2024 | 2023 | 1944 | ||||
| Decile 1 rainfall (mm) | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.5 | 0.0 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 62 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 10.2 | 12.6 | 20.7 | 3.0 | 19.9 | 32.0 | 7.4 | 2.4 | 0.2 | 0.0 | 0.0 | 0.0 | 62 | n/a n/a |
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| Decile 9 rainfall (mm) | 125.5 | 171.0 | 229.0 | 32.9 | 115.8 | 99.8 | 46.4 | 28.4 | 4.2 | 1.5 | 4.4 | 6.9 | 62 | n/a n/a |
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| Highest daily rainfall (mm) | 238.4 | 274.1 | 312.2 | 82.6 | 106.9 | 94.0 | 81.6 | 61.5 | 15.0 | 10.2 | 27.7 | 41.0 | 312.2 | 55 | 1940 2025 |
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| Date | 27 Jan 2009 | 12 Feb 1961 | 03 Mar 1961 | 28 Apr 1970 | 17 May 1942 | 06 Jun 1951 | 10 Jul 2005 | 27 Aug 1941 | 11 Sep 1970 | 09 Oct 2008 | 15 Nov 1971 | 06 Dec 1998 | 03 Mar 1961 | ||||
| Mean number of days of rain | 3.5 | 4.3 | 3.3 | 1.9 | 4.1 | 4.5 | 3.0 | 2.4 | 0.8 | 0.3 | 0.5 | 0.9 | 29.5 | 56 | 1940 2025 |
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| Mean number of days of rain ≥ 1 mm | 2.3 | 2.8 | 2.2 | 1.0 | 2.6 | 2.5 | 1.4 | 0.9 | 0.3 | 0.1 | 0.3 | 0.4 | 16.8 | 55 | 1940 2025 |
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| Mean number of days of rain ≥ 10 mm | 0.7 | 1.2 | 0.9 | 0.4 | 1.0 | 1.0 | 0.5 | 0.2 | 0.0 | 0.0 | 0.1 | 0.1 | 6.1 | 55 | 1940 2025 |
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| Mean number of days of rain ≥ 25 mm | 0.2 | 0.6 | 0.6 | 0.1 | 0.6 | 0.5 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.7 | 55 | 1940 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) | 513 | 473 | 424 | 368 | 333 | 333 | 356 | 379 | 439 | 490 | 504 | 512 | 427 | 17 | 2003 2025 |
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| Maximum wind gust speed (km/h) | 193 | 247 | 202 | 111 | 81 | 102 | 72 | 72 | 80 | 98 | 80 | 102 | 247 | 54 | 1942 2025 |
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| Date | 25 Jan 1961 | 19 Feb 1975 | 15 Mar 1958 | 02 Apr 1966 | 14 May 2011 | 16 Jun 1972 | 10 Jul 2011 | 02 Aug 2018 | 14 Sep 1947 | 18 Oct 1969 | 16 Nov 1969 | 31 Dec 1945 | 19 Feb 1975 | ||||
| Mean daily sunshine (hours) | |
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| Mean daily solar exposure (MJ/m2) | 27.9 | 26.2 | 23.5 | 19.8 | 16.7 | 14.7 | 16.1 | 19.6 | 23.1 | 26.5 | 28.5 | 28.8 | 22.6 | 18 | 2007 2025 |
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| Mean number of clear days | 15.8 | 11.2 | 16.4 | 14.6 | 15.1 | 17.1 | 19.5 | 22.1 | 23.7 | 24.8 | 22.4 | 20.9 | 223.6 | 35 | 1940 1975 |
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| Mean number of cloudy days | 5.2 | 6.7 | 5.3 | 5.8 | 7.9 | 5.9 | 4.9 | 3.3 | 1.7 | 1.3 | 1.5 | 2.4 | 51.9 | 35 | 1940 1975 |
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| Mean daily evaporation (mm) | 8 | 1966 1975 |
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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) | 30.3 | 30.3 | 29.4 | 27.0 | 22.5 | 18.9 | 17.9 | 19.7 | 22.9 | 25.9 | 28.0 | 29.7 | 25.2 | 47 | 1940 2010 |
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| Mean 9am wet-bulb temperature (°C) | 23.3 | 24.1 | 23.2 | 20.7 | 17.2 | 14.9 | 13.8 | 14.5 | 16.0 | 17.7 | 19.7 | 21.5 | 18.9 | 44 | 1940 2010 |
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| Mean 9am dew-point temperature (°C) | 19.2 | 20.6 | 19.6 | 16.5 | 13.1 | 11.0 | 9.6 | 9.3 | 9.7 | 10.8 | 13.5 | 16.1 | 14.1 | 47 | 1940 2010 |
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| Mean 9am relative humidity (%) | 54 | 59 | 58 | 55 | 58 | 63 | 61 | 54 | 46 | 42 | 44 | 47 | 53 | 47 | 1940 2010 |
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| Mean 9am cloud cover (oktas) | 2.9 | 3.6 | 2.8 | 2.8 | 3.0 | 2.5 | 2.3 | 1.6 | 1.2 | 1.0 | 1.3 | 1.8 | 2.2 | 35 | 1940 2004 |
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| Mean 9am wind speed (km/h) | 16.8 | 16.9 | 16.9 | 15.2 | 15.9 | 15.5 | 15.3 | 17.2 | 20.4 | 21.0 | 19.7 | 18.0 | 17.4 | 46 | 1940 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) | 33.8 | 34.0 | 34.0 | 32.0 | 27.9 | 24.8 | 24.2 | 25.7 | 28.0 | 30.2 | 31.7 | 33.1 | 30.0 | 47 | 1940 2010 |
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| Mean 3pm wet-bulb temperature (°C) | 25.5 | 26.1 | 25.4 | 22.9 | 19.7 | 17.4 | 16.7 | 17.2 | 18.9 | 20.4 | 22.2 | 23.9 | 21.4 | 44 | 1940 2010 |
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| Mean 3pm dew-point temperature (°C) | 21.0 | 22.0 | 20.7 | 17.3 | 13.6 | 11.1 | 10.0 | 9.9 | 11.4 | 13.2 | 15.9 | 18.4 | 15.4 | 46 | 1940 2010 |
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| Mean 3pm relative humidity (%) | 51 | 53 | 49 | 44 | 45 | 45 | 44 | 39 | 38 | 38 | 43 | 46 | 45 | 46 | 1940 2010 |
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| Mean 3pm cloud cover (oktas) | 2.7 | 3.4 | 2.8 | 3.0 | 3.1 | 2.6 | 2.2 | 1.6 | 1.2 | 0.9 | 1.3 | 1.8 | 2.2 | 35 | 1940 1975 |
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| Mean 3pm wind speed (km/h) | 27.9 | 26.5 | 23.9 | 19.6 | 18.1 | 17.5 | 17.7 | 19.6 | 23.6 | 26.8 | 28.8 | 28.9 | 23.2 | 46 | 1940 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 00:56:32 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_005017_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_005017.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_005017.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 Onslow
Climate outlooks
- Monthly and seasonal climate outlooks
Additional climate information
Page created: Thu 18 Sep 2025 00:56:32 AM AEST