Average September Temperature in Mount Isa by Year

This page contains a list of the average monthly high and low temperatures in Mount Isa, Queensland for the month of September each year between 1957 and 2023. It is based on NOAA data.
Change:
Month:
What Was the Hottest September Ever in Mount Isa?
1964 was the warmest September in the history of Mount Isa, Queensland. The average daily high temperature was 32.1 °C, and the average low was 17.8 °C.
What Was the Coldest September Ever in Mount Isa?
1984 was the coolest September in the history of Mount Isa, Queensland. The average daily high temperature was 27.8 °C, and the average low was 10.8 °C.
* click column headers to sort
Year Rank High (°C) Low (°C)
2023 26 33.0 13.5
2022 25 31.7 15.0
2021 13 32.3 15.7
2020 4 33.7 15.9
2019 40 32.2 13.0
2018 27 32.4 14.1
2017 14 34.0 14.0
2016 42 29.7 15.4
2015 49 31.0 13.7
2014 47 33.1 11.8
2013 3 35.3 14.3
2012 35 33.0 12.8
2011 57 31.2 11.8
2010 10 31.3 17.4
2009 39 32.3 12.9
2008 21 32.1 15.2
2007 30 32.4 13.7
2006 41 31.3 13.9
2005 16 33.3 14.5
2004 58 30.4 12.6
2003 11 33.6 15.0
2002 32 32.8 13.2
2001 54 31.4 12.3
2000 34 33.2 12.6
1999 36 32.3 13.4
1998 15 31.9 16.0
1997 12 33.2 14.9
1996 46 32.3 12.6
1995 2 33.2 16.5
1994 55 31.1 12.5
1993 22 31.4 15.8
1992 19 31.0 16.4
1991 29 32.0 14.2
1990 48 29.3 15.6
1989 17 31.9 15.7
1988 8 32.3 16.5
1987 51 30.1 14.2
1986 5 32.1 17.3
1985 59 29.6 13.3
1984 65 27.8 10.8
1983 7 33.8 15.2
1982 61 29.6 12.4
1981 28 30.8 15.6
1980 31 33.0 13.0
1979 43 31.4 13.7
1978 64 27.6 12.2
1977 63 28.9 12.6
1976 56 30.1 13.1
1975 9 31.0 17.8
1974 53 29.0 14.9
1973 52 28.6 15.6
1972 24 31.4 15.6
1970 23 31.1 15.9
1969 60 28.7 14.2
1968 18 31.3 16.2
1967 33 31.2 14.7
1965 6 32.1 17.2
1964 1 32.1 17.8
1963 37 32.2 13.4
1962 44 30.5 14.6
1961 20 31.8 15.6
1960 45 31.4 13.6
1959 38 30.2 15.3
1958 62 29.3 12.5
1957 50 31.1 13.4
Weather Station Details
Years Station Coordinates
1971–2023 Mount Isa Aero location
1926–1970 Mount Isa Post Office location