"Monthly Climate Statistics for 'NORFOLK ISLAND AERO' [200288]" "Created on [ 22 Oct 2025 14:57:11 UTC]" "200288 NORFOLK ISLAND AERO" "Commenced: 1890" "Last Record: 2025" "Latitude: 29.04 Degrees South" "Longitude: 167.94 Degrees East" "Elevation: 112 m" "State: NSW" "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 1939 to 2025 ",24.6,25.0,24.4,22.8,21.0,19.3,18.4,18.4,19.1,20.3,21.8,23.5,21.6,86,1939,2025 "Highest temperature (°C) for years 1939 to 2025 ",28.5,28.4,28.4,27.9,25.1,23.4,22.0,21.8,23.8,24.5,26.5,28.2,28.5,86,1939,2025 "Date of Highest temperature °C for years 1939 to 2025 ",23 Jan 2024,11 Feb 1996,04 Mar 2011,04 Apr 2017,07 May 2000,08 Jun 1998,26 Jul 1970,02 Aug 2010,30 Sep 2010,26 Oct 2024,28 Nov 2015,28 Dec 2010,23 Jan 2024,N/A,1939,2025 "Lowest maximum temperature (°C) for years 1939 to 2025 ",19.1,20.0,18.4,18.3,16.7,15.3,13.8,13.7,14.4,16.0,17.2,18.6,13.7,86,1939,2025 "Date of Lowest maximum temperature °C for years 1939 to 2025 ",12 Jan 1961,08 Feb 1972,13 Mar 1959,27 Apr 1943,28 May 1940,29 Jun 1965,31 Jul 1939,26 Aug 2002,02 Sep 1945,12 Oct 1993,14 Nov 1976,18 Dec 1952,26 Aug 2002,N/A,1939,2025 "Decile 1 maximum temperature (°C) for years 1939 to 2023 ",22.9,23.3,22.7,21.2,19.3,17.8,16.9,16.9,17.6,18.6,20.0,21.7, ,81,1939,2023 "Decile 9 maximum temperature (°C) for years 1939 to 2023 ",26.2,26.5,25.8,24.3,22.5,20.9,19.8,19.8,20.6,22.0,23.6,25.3, ,81,1939,2023 "Mean number of days >= 30 °C for years 1939 to 2025 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,86,1939,2025 "Mean number of days >= 35 °C for years 1939 to 2025 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,86,1939,2025 "Mean number of days >= 40 °C for years 1939 to 2025 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,86,1939,2025 "Mean minimum temperature (°C) for years 1939 to 2025 ",19.2,19.8,19.3,17.9,16.2,14.8,13.6,13.3,13.8,14.9,16.2,17.9,16.4,86,1939,2025 "Lowest temperature (°C) for years 1939 to 2025 ",12.1,12.8,12.1,9.7,6.6,7.1,6.2,6.7,7.7,8.2,8.7,11.4,6.2,86,1939,2025 "Date of Lowest temperature °C for years 1939 to 2025 ",09 Jan 1942,12 Feb 1940,26 Mar 1940,14 Apr 1940,31 May 1940,30 Jun 1940,29 Jul 1953,27 Aug 1940,03 Sep 1952,28 Oct 1946,12 Nov 1941,06 Dec 1952,29 Jul 1953,N/A,1939,2025 "Highest minimum temperature (°C) for years 1939 to 2025 ",23.6,24.7,23.8,23.3,21.5,20.1,19.3,18.9,19.0,20.7,21.5,23.3,24.7,86,1939,2025 "Date of Highest minimum temperature °C for years 1939 to 2025 ",30 Jan 1991,11 Feb 2022,05 Mar 2011,04 Apr 2025,03 May 2004,05 Jun 1973,06 Jul 2022,11 Aug 2019,02 Sep 2024,28 Oct 1998,14 Nov 1973,29 Dec 2010,11 Feb 2022,N/A,1939,2025 "Decile 1 minimum temperature (°C) for years 1939 to 2023 ",17.1,17.6,17.2,15.7,14.1,12.5,11.6,11.2,11.6,12.6,13.8,15.5, ,81,1939,2023 "Decile 9 minimum temperature (°C) for years 1939 to 2023 ",21.2,21.7,21.2,19.8,18.4,17.0,15.7,15.4,15.9,17.3,18.5,20.3, ,81,1939,2023 "Mean number of days <= 2 °C for years 1939 to 2025 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,86,1939,2025 "Mean number of days <= 0 °C for years 1939 to 2025 ",0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,86,1939,2025 "Mean daily ground minimum temperature °C for years 1946 to 1948 ", , , , , , , , , , , , , ,2,1946,1948 "Lowest ground temperature °C for years 1946 to 1948 ", , , , , , , , , , , , , ,2,1946,1948 "Date of Lowest ground temperature °C for years 1946 to 1948 ", , , , , , , , , , , , , ,N/A,1946,1948 "Mean number of days ground min. temp. <= -1 °C for years 1946 to 1948 ", , , , , , , , , , , , , ,2,1946,1948 "Mean rainfall (mm) for years 1890 to 2025 ",86.5,96.4,103.5,122.8,129.2,142.6,139.9,125.0,92.3,83.5,73.2,85.0,1279.5,132,1890,2025 "Highest rainfall (mm) for years 1890 to 2025 ",339.5,410.5,472.9,429.3,390.0,457.7,356.3,462.6,335.2,333.2,446.2,473.2,2098.0,132,1890,2025 "Date of Highest rainfall for years 1890 to 2025 ",1959,1894,1942,1970,1949,1958,1892,1892,1985,1998,1988,1989,2022,N/A,1890,2025 "Lowest rainfall (mm) for years 1890 to 2025 ",1.4,2.8,7.2,3.5,24.8,22.0,32.8,28.8,15.0,11.9,5.4,5.2,653.8,132,1890,2025 "Date of Lowest rainfall for years 1890 to 2025 ",2020,1926,1905,1908,1994,2001,2018,2024,2006,1938,2002,1899,2024,N/A,1890,2025 "Decile 1 monthly rainfall (mm) for years 1800 to 3000 ",12.6,22.4,23.8,34.4,44.7,65.0,66.5,60.5,38.9,27.2,16.9,19.4, ,133,n/a,n/a "Decile 5 (median) monthly rainfall (mm) for years 1800 to 3000 ",62.4,66.6,92.8,105.8,107.2,125.4,131.2,110.0,76.8,67.8,57.2,55.9, ,133,n/a,n/a "Decile 5 (median) monthly rainfall (mm) for years 1800 to 3000 ",199.0,199.0,199.1,242.3,223.9,228.6,226.6,199.4,170.2,149.6,152.8,179.1, ,133,n/a,n/a "Highest daily rainfall (mm) for years 1891 to 2025 ",253.7,186.7,199.1,226.8,240.5,252.0,157.0,176.8,153.0,173.2,112.0,271.0,271.0,130,1891,2025 "Date of Highest daily rainfall for years 1891 to 2025 ",13 Jan 1959,28 Feb 1898,04 Mar 1962,07 Apr 1937,22 May 1936,19 Jun 1952,10 Jul 1892,05 Aug 1945,16 Sep 1985,26 Oct 1917,12 Nov 1987,21 Dec 1989,21 Dec 1989,N/A,1891,2025 "Mean number of days of rain for years 1890 to 2025 ",11.0,12.5,15.2,15.9,18.7,19.8,21.0,19.1,15.0,12.8,10.2,11.0,182.2,130,1890,2025 "Mean number of days of rain >= 1 mm for years 1891 to 2025 ",7.1,7.8,9.2,10.4,12.2,13.7,14.5,13.4,10.0,8.3,6.7,7.0,120.3,130,1891,2025 "Mean number of days of rain >= 10 mm for years 1891 to 2025 ",2.0,2.2,2.2,2.9,2.9,3.7,3.6,3.3,2.4,2.2,1.9,1.9,31.2,130,1891,2025 "Mean number of days of rain >= 25 mm for years 1891 to 2025 ",0.8,0.9,1.0,1.2,1.2,1.3,1.4,1.1,0.8,0.8,0.8,0.8,12.1,130,1891,2025 "Mean daily wind run (km) for years 1997 to 2023 ",448,465,445,421,434,427,450,429,420,417,408,410,431,23,1997,2023 "Maximum wind gust speed (km/h) for years 1943 to 2025 ",106,111,135,111,115,121,121,109,98,108,106,117,135,76,1943,2025 "Date of Maximum wind gust speed for years 1943 to 2025 ",11 Jan 2000,19 Feb 1989,19 Mar 1992,07 Apr 1964,19 May 1984,04 Jun 1968,19 Jul 1966,06 Aug 1974,15 Sep 1985,05 Oct 1959,08 Nov 1988,04 Dec 1961,19 Mar 1992,N/A,1943,2025 "Mean daily sunshine (hours) for years 1945 to 2016 ",7.5,7.1,6.5,6.5,5.9,5.2,5.9,6.7,7.1,7.5,7.9,7.7,6.8,70,1945,2016 "Mean daily solar exposure (MJ/(m*m)) for years null to null ", , , , , , , , , , , , , ,, , "Mean number of clear days for years 1939 to 2010 ",2.8,2.3,3.4,3.3,2.7,2.5,3.1,4.7,4.6,4.2,3.8,3.6,41.0,31,1939,2010 "Mean number of cloudy days for years 1939 to 2010 ",14.2,14.4,14.3,12.0,12.9,13.2,11.2,9.3,9.7,11.8,11.2,13.6,147.8,31,1939,2010 "Mean daily evaporation (mm) for years 1976 to 2025 ",5.7,5.4,5.0,4.1,3.4,3.1,3.1,3.4,4.0,4.6,5.2,5.6,4.4,46,1976,2025 "Mean 9am temperature (°C) for years 1939 to 2012 ",21.9,22.2,21.6,20.4,18.6,17.0,16.0,15.9,16.9,18.0,19.5,21.0,19.1,31,1939,2012 "Mean 9am wet bulb temperature (°C) for years 1939 to 2012 ",19.4,20.0,19.0,17.7,16.1,14.7,13.6,13.5,14.4,15.3,16.5,18.3,16.5,31,1939,2012 "Mean 9am dew point temperature (°C) for years 1948 to 2012 ",17.7,18.6,17.2,15.7,14.1,12.7,11.5,11.3,12.2,13.0,14.3,16.4,14.6,31,1948,2012 "Mean 9am relative humidity (%) for years 1948 to 2012 ",78,81,77,76,76,77,75,75,75,74,73,76,76,31,1948,2012 "Mean 9am cloud cover (okas) for years 1939 to 2012 ",5.2,5.5,5.4,5.1,5.1,5.2,4.8,4.6,4.7,4.9,5.0,5.2,5.1,31,1939,2012 "Mean 9am wind speed (km/h) for years 1939 to 2010 ",16.2,16.6,16.9,15.4,14.9,15.3,15.9,15.6,15.3,15.6,15.7,15.3,15.7,64,1939,2010 "Mean 3pm temperature (°C) for years 1939 to 2010 ",23.2,23.8,23.0,21.6,19.7,18.2,17.3,17.2,18.0,19.1,20.6,22.2,20.3,31,1939,2010 "Mean 3pm wet bulb temperature (°C) for years 1939 to 2010 ",19.9,20.6,19.6,18.2,16.6,15.2,14.3,14.2,14.9,15.9,17.1,18.9,17.1,31,1939,2010 "Mean 3pm dew point temperature (°C) for years 1948 to 2010 ",17.9,18.6,17.4,15.8,14.3,12.8,11.7,11.6,12.4,13.2,14.5,16.6,14.7,31,1948,2010 "Mean 3pm relative humidity (%) for years 1948 to 2010 ",73,74,71,70,71,72,71,71,71,70,69,71,71,31,1948,2010 "Mean 3pm cloud cover (oktas) for years 1939 to 2010 ",5.2,5.4,5.1,5.0,5.1,5.2,4.9,4.6,4.4,4.7,4.7,5.1,5.0,31,1939,2010 "Mean 3pm wind speed (km/h) for years 1939 to 2010 ",18.8,19.6,19.5,18.1,17.3,17.7,18.4,18.1,17.7,17.9,18.0,17.6,18.2,64,1939,2010