"Monthly Climate Statistics for 'COCOS ISLAND AIRPORT' [200284]" "Created on [ 22 Oct 2025 13:57:41 UTC]" "200284 COCOS ISLAND AIRPORT" "Commenced: 1901" "Last Record: 2025" "Latitude: 12.19 Degrees South" "Longitude: 96.83 Degrees East" "Elevation: 3 m" "State: WA" "Statistic Element","January","February","March","April","May","June","July","August","September","October","November","December","Annual","Number of Years","Start Year","End Year" "Mean maximum temperature (°C) for years 1952 to 2025 ",29.8,30.0,30.1,29.9,29.3,28.6,28.1,28.1,28.3,28.7,29.1,29.4,29.1,73,1952,2025 "Highest temperature (°C) for years 1952 to 2025 ",33.1,32.8,32.8,32.8,32.6,32.0,31.6,31.0,30.9,31.0,32.1,33.2,33.2,73,1952,2025 "Date of Highest temperature °C for years 1952 to 2025 ",27 Jan 2025,28 Feb 2024,07 Mar 2025,07 Apr 2024,19 May 2024,04 Jun 2024,06 Jul 2024,10 Aug 2024,23 Sep 2024,25 Oct 1998,28 Nov 2022,03 Dec 2024,03 Dec 2024,N/A,1952,2025 "Lowest maximum temperature (°C) for years 1952 to 2025 ",25.0,26.6,26.4,26.1,25.1,24.4,23.9,24.3,25.1,25.2,24.8,24.9,23.9,73,1952,2025 "Date of Lowest maximum temperature °C for years 1952 to 2025 ",03 Jan 1956,14 Feb 1971,10 Mar 1957,21 Apr 1974,27 May 1956,24 Jun 1968,23 Jul 1956,04 Aug 1997,10 Sep 1960,28 Oct 1956,04 Nov 1955,28 Dec 1964,23 Jul 1956,N/A,1952,2025 "Decile 1 maximum temperature (°C) for years 1952 to 2025 ",28.7,28.8,29.0,28.7,28.2,27.4,26.9,27.1,27.3,27.8,28.1,28.5, ,68,1952,2025 "Decile 9 maximum temperature (°C) for years 1952 to 2025 ",30.9,31.1,31.1,30.8,30.3,29.7,29.1,28.9,29.1,29.6,30.0,30.4, ,68,1952,2025 "Mean number of days >= 30 °C for years 1952 to 2025 ",14.3,16.1,17.9,14.9,6.9,1.8,0.5,0.2,0.2,1.1,3.5,8.0,85.4,73,1952,2025 "Mean number of days >= 35 °C for years 1952 to 2025 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,73,1952,2025 "Mean number of days >= 40 °C for years 1952 to 2025 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,73,1952,2025 "Mean minimum temperature (°C) for years 1952 to 2025 ",24.9,25.1,25.3,25.4,25.2,24.6,24.1,24.0,24.0,24.3,24.6,24.7,24.7,73,1952,2025 "Lowest temperature (°C) for years 1952 to 2025 ",21.0,20.1,19.8,19.6,19.4,20.1,20.4,18.3,19.0,20.6,19.3,20.4,18.3,73,1952,2025 "Date of Lowest temperature °C for years 1952 to 2025 ",02 Jan 2007,14 Feb 1985,11 Mar 1984,16 Apr 1966,16 May 1965,24 Jun 1968,15 Jul 1973,06 Aug 1979,04 Sep 1977,02 Oct 1966,26 Nov 1973,27 Dec 2018,06 Aug 1979,N/A,1952,2025 "Highest minimum temperature (°C) for years 1952 to 2025 ",27.6,28.1,28.4,28.6,28.1,27.7,27.3,26.8,27.3,27.4,27.0,27.2,28.6,73,1952,2025 "Date of Highest minimum temperature °C for years 1952 to 2025 ",13 Jan 2016,16 Feb 1998,04 Mar 1983,27 Apr 1998,13 May 1998,05 Jun 2024,24 Jul 2021,27 Aug 2010,19 Sep 2010,28 Oct 1998,29 Nov 2024,04 Dec 2024,27 Apr 1998,N/A,1952,2025 "Decile 1 minimum temperature (°C) for years 1952 to 2025 ",23.4,23.6,23.7,23.8,23.5,23.1,22.5,22.4,22.4,22.9,23.2,23.3, ,68,1952,2025 "Decile 9 minimum temperature (°C) for years 1952 to 2025 ",26.2,26.5,26.7,26.8,26.5,26.1,25.6,25.4,25.3,25.4,25.7,25.8, ,68,1952,2025 "Mean number of days <= 2 °C for years 1952 to 2025 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,73,1952,2025 "Mean number of days <= 0 °C for years 1952 to 2025 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,73,1952,2025 "Mean daily ground minimum temperature °C for years 1985 to 2016 ",23.2,23.4,23.6,23.8,23.6,23.2,22.5,22.5,22.3,22.6,23.0,23.0,23.1,31,1985,2016 "Lowest ground temperature °C for years 1985 to 2016 ",16.0,17.3,17.5,19.3,17.8,18.6,18.0,17.0,16.8,17.2,17.8,15.9,15.9,31,1985,2016 "Date of Lowest ground temperature °C for years 1985 to 2016 ",02 Jan 2007,23 Feb 2001,21 Mar 2000,11 Apr 2004,05 May 2001,30 Jun 2000,27 Jul 2007,03 Aug 1997,30 Sep 1996,04 Oct 2004,22 Nov 2000,22 Dec 2003,22 Dec 2003,N/A,1985,2016 "Mean number of days ground min. temp. <= -1 °C for years 1985 to 2016 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,31,1985,2016 "Mean rainfall (mm) for years 1901 to 2025 ",164.4,192.3,235.5,242.7,191.9,216.7,208.3,120.7,90.2,78.7,99.4,117.8,1960.6,122,1901,2025 "Highest rainfall (mm) for years 1901 to 2025 ",563.6,1000.4,714.1,594.6,646.2,649.4,886.0,467.9,862.5,816.6,573.9,511.9,3490.2,122,1901,2025 "Date of Highest rainfall for years 1901 to 2025 ",2021,2013,1913,2000,1956,1988,1908,1955,1942,1910,1973,1922,2010,N/A,1901,2025 "Lowest rainfall (mm) for years 1901 to 2025 ",1.8,6.6,10.9,19.2,16.2,7.4,23.0,14.2,2.8,0.6,0.0,2.9,855.2,122,1901,2025 "Date of Lowest rainfall for years 1901 to 2025 ",2006,1976,1904,2013,1935,1978,2023,2012,1986,1946,1923,1927,1991,N/A,1901,2025 "Decile 1 monthly rainfall (mm) for years 1800 to 3000 ",19.0,50.2,87.3,65.7,59.3,80.5,59.5,31.8,14.8,5.3,7.7,13.3, ,123,n/a,n/a "Decile 5 (median) monthly rainfall (mm) for years 1800 to 3000 ",135.1,171.9,225.1,217.2,166.0,192.2,175.2,87.8,47.1,41.4,56.2,88.0, ,123,n/a,n/a "Decile 5 (median) monthly rainfall (mm) for years 1800 to 3000 ",369.7,356.7,392.7,415.0,346.4,399.6,376.6,233.6,210.2,187.3,240.7,259.5, ,123,n/a,n/a "Highest daily rainfall (mm) for years 1907 to 2025 ",203.6,416.0,216.4,218.4,168.2,195.4,259.3,287.5,244.9,322.6,202.4,269.2,416.0,117,1907,2025 "Date of Highest daily rainfall for years 1907 to 2025 ",12 Jan 1986,25 Feb 2013,06 Mar 1985,29 Apr 1934,28 May 1998,02 Jun 2021,08 Jul 1908,28 Aug 1956,07 Sep 1919,06 Oct 1910,11 Nov 1989,02 Dec 1911,25 Feb 2013,N/A,1907,2025 "Mean number of days of rain for years 1901 to 2025 ",12.8,14.5,17.3,17.8,18.0,18.5,19.7,16.7,13.6,10.6,10.5,11.4,181.4,117,1901,2025 "Mean number of days of rain >= 1 mm for years 1907 to 2025 ",9.4,11.5,13.7,13.5,12.8,13.2,14.0,11.5,8.5,6.4,6.8,8.0,129.3,117,1907,2025 "Mean number of days of rain >= 10 mm for years 1907 to 2025 ",3.8,4.9,6.1,6.0,4.7,5.1,5.1,2.9,1.9,1.7,2.3,2.8,47.3,117,1907,2025 "Mean number of days of rain >= 25 mm for years 1907 to 2025 ",1.8,2.1,2.6,2.6,2.0,2.3,2.1,1.1,0.8,0.8,1.1,1.2,20.5,117,1907,2025 "Mean daily wind run (km) for years 1993 to 2024 ",417,398,415,487,550,569,624,637,641,596,578,497,534,25,1993,2024 "Maximum wind gust speed (km/h) for years 1952 to 2025 ",176,163,102,109,100,111,89,130,87,87,145,111,176,72,1952,2025 "Date of Maximum wind gust speed for years 1952 to 2025 ",21 Jan 1968,27 Feb 1992,10 Mar 1964,03 Apr 2005,23 May 1975,28 Jun 1954,14 Jul 1989,27 Aug 1956,07 Sep 1989,28 Oct 1956,25 Nov 1973,19 Dec 1992,21 Jan 1968,N/A,1952,2025 "Mean daily sunshine (hours) for years null to null ", , , , , , , , , , , , , ,, , "Mean daily solar exposure (MJ/(m*m)) for years null to null ", , , , , , , , , , , , , ,, , "Mean number of clear days for years null to null ", , , , , , , , , , , , , ,, , "Mean number of cloudy days for years null to null ", , , , , , , , , , , , , ,, , "Mean daily evaporation (mm) for years 1981 to 2021 ",6.9,6.6,6.2,5.9,5.6,5.3,5.6,6.3,6.9,7.1,7.3,7.3,6.4,37,1981,2021 "Mean 9am temperature (°C) for years 1999 to 2009 ", , , , , , , , , , , , , ,1,1999,2009 "Mean 9am wet bulb temperature (°C) for years 1999 to 2009 ", , , , , , , , , , , , , ,1,1999,2009 "Mean 9am dew point temperature (°C) for years 1999 to 2009 ", , , , , , , , , , , , , ,1,1999,2009 "Mean 9am relative humidity (%) for years 1999 to 2009 ", , , , , , , , , , , , , ,1,1999,2009 "Mean 9am cloud cover (okas) for years 2001 to 2009 ", , , , , , , , , , , , , ,1,2001,2009 "Mean 9am wind speed (km/h) for years 1952 to 2014 ",20.5,18.2,21.0,23.8,26.3,27.0,29.3,30.4,30.6,28.9,27.5,23.2,25.6,58,1952,2014 "Mean 3pm temperature (°C) for years 1977 to 2006 ", , , , , , , , , , , , , ,1,1977,2006 "Mean 3pm wet bulb temperature (°C) for years 1977 to 2006 ", , , , , , , , , , , , , ,1,1977,2006 "Mean 3pm dew point temperature (°C) for years 1977 to 2006 ", , , , , , , , , , , , , ,1,1977,2006 "Mean 3pm relative humidity (%) for years 1977 to 2006 ", , , , , , , , , , , , , ,1,1977,2006 "Mean 3pm cloud cover (oktas) for years 1977 to 2006 ", , , , , , , , , , , , , ,1,1977,2006 "Mean 3pm wind speed (km/h) for years 1952 to 2010 ",20.8,18.6,21.0,23.0,25.5,26.5,28.9,30.2,30.2,28.6,27.3,23.4,25.3,57,1952,2010