Mount Isa Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Mount Isa, Queensland, based on NOAA data.
What's the hottest day of the year in Mount Isa?
On average, December 17 is the hottest day of the year Mount Isa, Queensland. From 1991–2020, the average high temperature on December 17 was 37.4 °C and the average low was 23.2 °C.
What's the coldest day of the year in Mount Isa?
On average, July 4 is the coldest day of the year Mount Isa, Queensland. From 1991–2020, the average high temperature on July 4 was 25.0 °C, and the average low was 8.7 °C.
Average Temperature by Day
  • Average temperatures from 1991–2020. Daily averages are a mean of the period from 14 days before to 14 days after, inclusive.
Day Average (°C)
High Low
January 1 36.8 23.6
January 2 36.8 23.6
January 3 36.7 23.6
January 4 36.7 23.6
January 5 36.6 23.6
January 6 36.6 23.6
January 7 36.6 23.6
January 8 36.6 23.6
January 9 36.6 23.6
January 10 36.6 23.6
January 11 36.7 23.6
January 12 36.7 23.6
January 13 36.6 23.6
January 14 36.6 23.7
January 15 36.5 23.7
January 16 36.5 23.6
January 17 36.5 23.7
January 18 36.5 23.7
January 19 36.4 23.7
January 20 36.4 23.7
January 21 36.3 23.7
January 22 36.3 23.6
January 23 36.2 23.6
January 24 36.1 23.6
January 25 36.1 23.6
January 26 36.1 23.5
January 27 36.0 23.5
January 28 36.0 23.4
January 29 36.1 23.4
January 30 36.1 23.4
January 31 36.0 23.3
February 1 36.1 23.3
February 2 36.1 23.3
February 3 36.1 23.3
February 4 36.0 23.3
February 5 36.0 23.2
February 6 36.0 23.2
February 7 36.0 23.2
February 8 35.9 23.2
February 9 35.8 23.2
February 10 35.8 23.2
February 11 35.8 23.2
February 12 35.8 23.1
February 13 35.7 23.1
February 14 35.7 23.1
February 15 35.6 23.1
February 16 35.5 23.0
February 17 35.5 23.0
February 18 35.4 23.0
February 19 35.4 22.9
February 20 35.4 22.9
February 21 35.4 22.9
February 22 35.3 22.8
February 23 35.3 22.8
February 24 35.3 22.7
February 25 35.3 22.7
February 26 35.2 22.7
February 27 35.2 22.7
February 28 35.1 22.7
March 1 35.1 22.6
March 2 35.1 22.5
March 3 35.0 22.5
March 4 35.0 22.5
March 5 35.0 22.4
March 6 35.0 22.3
March 7 35.0 22.3
March 8 34.9 22.3
March 9 34.9 22.2
March 10 34.8 22.1
March 11 34.8 22.0
March 12 34.8 21.9
March 13 34.8 21.8
March 14 34.8 21.8
March 15 34.8 21.7
March 16 34.8 21.6
March 17 34.8 21.5
March 18 34.8 21.4
March 19 34.8 21.4
March 20 34.8 21.3
March 21 34.8 21.3
March 22 34.8 21.2
March 23 34.7 21.1
March 24 34.7 21.1
March 25 34.6 21.0
March 26 34.6 20.9
March 27 34.5 20.8
March 28 34.4 20.7
March 29 34.4 20.6
March 30 34.3 20.5
March 31 34.2 20.4
April 1 34.1 20.3
April 2 34.0 20.2
April 3 33.9 20.1
April 4 33.8 20.0
April 5 33.7 19.8
April 6 33.7 19.7
April 7 33.6 19.6
April 8 33.5 19.4
April 9 33.4 19.3
April 10 33.3 19.1
April 11 33.1 19.0
April 12 33.0 18.9
April 13 32.8 18.7
April 14 32.7 18.6
April 15 32.6 18.4
April 16 32.5 18.3
April 17 32.4 18.1
April 18 32.2 18.0
April 19 32.0 17.8
April 20 31.9 17.6
April 21 31.8 17.4
April 22 31.6 17.3
April 23 31.5 17.1
April 24 31.4 16.9
April 25 31.3 16.8
April 26 31.1 16.6
April 27 30.9 16.5
April 28 30.8 16.3
April 29 30.6 16.1
April 30 30.5 15.9
May 1 30.3 15.8
May 2 30.1 15.6
May 3 30.0 15.5
May 4 29.8 15.3
May 5 29.6 15.2
May 6 29.5 15.0
May 7 29.3 14.9
May 8 29.2 14.7
May 9 29.0 14.5
May 10 28.9 14.3
May 11 28.8 14.2
May 12 28.8 14.1
May 13 28.6 13.9
May 14 28.5 13.7
May 15 28.4 13.6
May 16 28.2 13.5
May 17 28.1 13.3
May 18 28.0 13.2
May 19 27.9 13.0
May 20 27.8 12.9
May 21 27.6 12.8
May 22 27.5 12.7
May 23 27.4 12.6
May 24 27.3 12.5
May 25 27.2 12.4
May 26 27.1 12.3
May 27 27.0 12.2
May 28 27.0 12.1
May 29 26.9 12.0
May 30 26.8 11.8
May 31 26.7 11.7
June 1 26.6 11.6
June 2 26.5 11.5
June 3 26.4 11.4
June 4 26.3 11.3
June 5 26.2 11.1
June 6 26.1 11.0
June 7 25.9 10.9
June 8 25.8 10.8
June 9 25.7 10.6
June 10 25.6 10.5
June 11 25.5 10.4
June 12 25.5 10.3
June 13 25.4 10.2
June 14 25.4 10.1
June 15 25.3 10.0
June 16 25.3 9.9
June 17 25.3 9.8
June 18 25.2 9.8
June 19 25.2 9.7
June 20 25.2 9.6
June 21 25.1 9.5
June 22 25.1 9.4
June 23 25.1 9.3
June 24 25.0 9.3
June 25 25.0 9.2
June 26 25.0 9.1
June 27 25.0 9.1
June 28 25.0 9.0
June 29 25.0 9.0
June 30 25.0 8.9
July 1 25.0 8.9
July 2 25.0 8.8
July 3 25.0 8.8
July 4 25.0 8.7
July 5 25.1 8.7
July 6 25.1 8.7
July 7 25.1 8.7
July 8 25.2 8.7
July 9 25.2 8.7
July 10 25.3 8.7
July 11 25.3 8.7
July 12 25.3 8.7
July 13 25.4 8.7
July 14 25.4 8.8
July 15 25.4 8.7
July 16 25.5 8.7
July 17 25.5 8.6
July 18 25.6 8.6
July 19 25.6 8.6
July 20 25.6 8.6
July 21 25.7 8.5
July 22 25.8 8.5
July 23 25.8 8.5
July 24 25.9 8.5
July 25 25.9 8.5
July 26 25.9 8.5
July 27 26.0 8.5
July 28 26.0 8.5
July 29 26.1 8.4
July 30 26.2 8.5
July 31 26.3 8.5
August 1 26.4 8.5
August 2 26.5 8.6
August 3 26.6 8.6
August 4 26.7 8.7
August 5 26.8 8.8
August 6 26.8 8.9
August 7 26.9 8.9
August 8 27.0 8.9
August 9 27.1 9.0
August 10 27.2 9.1
August 11 27.3 9.2
August 12 27.4 9.3
August 13 27.5 9.4
August 14 27.5 9.5
August 15 27.6 9.7
August 16 27.7 9.8
August 17 27.8 10.0
August 18 28.0 10.1
August 19 28.1 10.2
August 20 28.2 10.4
August 21 28.4 10.5
August 22 28.5 10.7
August 23 28.7 10.8
August 24 28.9 11.0
August 25 29.0 11.2
August 26 29.1 11.4
August 27 29.3 11.6
August 28 29.4 11.7
August 29 29.5 11.8
August 30 29.7 11.9
August 31 29.8 12.1
September 1 30.0 12.2
September 2 30.1 12.3
September 3 30.3 12.4
September 4 30.5 12.4
September 5 30.6 12.6
September 6 30.7 12.7
September 7 30.9 12.8
September 8 31.0 12.9
September 9 31.2 13.0
September 10 31.3 13.1
September 11 31.5 13.3
September 12 31.7 13.5
September 13 31.9 13.7
September 14 32.1 13.8
September 15 32.2 14.0
September 16 32.3 14.1
September 17 32.5 14.3
September 18 32.6 14.5
September 19 32.8 14.7
September 20 32.9 14.8
September 21 33.0 14.9
September 22 33.1 15.0
September 23 33.2 15.1
September 24 33.3 15.3
September 25 33.5 15.4
September 26 33.6 15.6
September 27 33.7 15.8
September 28 33.8 16.0
September 29 33.9 16.1
September 30 34.0 16.3
October 1 34.1 16.5
October 2 34.2 16.6
October 3 34.3 16.8
October 4 34.4 17.0
October 5 34.4 17.2
October 6 34.5 17.4
October 7 34.5 17.5
October 8 34.6 17.7
October 9 34.6 17.8
October 10 34.7 17.9
October 11 34.8 17.9
October 12 34.9 18.0
October 13 35.0 18.1
October 14 35.1 18.2
October 15 35.2 18.3
October 16 35.2 18.4
October 17 35.3 18.5
October 18 35.4 18.5
October 19 35.5 18.6
October 20 35.6 18.8
October 21 35.6 18.9
October 22 35.7 19.0
October 23 35.7 19.1
October 24 35.8 19.2
October 25 35.9 19.3
October 26 35.9 19.5
October 27 36.0 19.5
October 28 36.0 19.6
October 29 36.1 19.7
October 30 36.1 19.8
October 31 36.2 19.9
November 1 36.3 20.0
November 2 36.3 20.0
November 3 36.4 20.1
November 4 36.5 20.3
November 5 36.6 20.4
November 6 36.7 20.5
November 7 36.8 20.6
November 8 36.8 20.8
November 9 36.8 20.9
November 10 36.8 21.0
November 11 36.8 21.1
November 12 36.8 21.1
November 13 36.9 21.2
November 14 36.9 21.3
November 15 36.9 21.4
November 16 37.0 21.4
November 17 37.0 21.5
November 18 37.1 21.5
November 19 37.1 21.6
November 20 37.2 21.6
November 21 37.3 21.7
November 22 37.3 21.8
November 23 37.4 21.9
November 24 37.4 21.9
November 25 37.5 22.0
November 26 37.5 22.1
November 27 37.5 22.2
November 28 37.5 22.3
November 29 37.5 22.3
November 30 37.6 22.4
December 1 37.6 22.4
December 2 37.6 22.5
December 3 37.6 22.5
December 4 37.6 22.5
December 5 37.6 22.6
December 6 37.6 22.6
December 7 37.7 22.7
December 8 37.6 22.8
December 9 37.7 22.8
December 10 37.7 22.9
December 11 37.6 22.9
December 12 37.6 23.0
December 13 37.5 23.1
December 14 37.5 23.1
December 15 37.5 23.1
December 16 37.4 23.2
December 17 37.4 23.2
December 18 37.3 23.3
December 19 37.3 23.3
December 20 37.2 23.3
December 21 37.2 23.3
December 22 37.2 23.3
December 23 37.1 23.4
December 24 37.1 23.4
December 25 37.1 23.4
December 26 37.1 23.4
December 27 37.1 23.4
December 28 37.0 23.5
December 29 37.0 23.5
December 30 36.9 23.6
December 31 36.8 23.6
Weather Station Details
Years Station Coordinates
1971–2023 Mount Isa Aero location
1926–1970 Mount Isa Post Office location