Fairfax Media Network

Mt Isa Climate

Mt Isa Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
36.4 35.3 34.3 31.9 27.9 24.8 24.8 27.3 31.4 34.7 36.5 37.2 31.9
Mean Min (°C)
23.7 23.3 21.7 18.5 13.8 9.9 8.6 10.2 14.2 18.5 21.4 23.0 17.2
Mean Rain (mm)
113.6 103.2 64.3 15.1 13.0 5.9 5.7 3.5 6.6 18.4 38.7 73.9 462.8
Median Rain (mm)
72.8 85.6 38.0 1.8 3.7 0.0 0.0 0.4 0.4 8.6 25.2 49.4 421.2
Mean Rain Days
9.8 9.2 5.8 2.3 1.8 1.0 0.9 0.9 1.6 3.3 5.4 7.6 48.5

Mt Isa Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
45.9 43.5 40.9 38.6 37.1 33.5 35.2 36.4 39.8 42.5 43.5 45.1 45.9
Low Max (°C)
22.8 23.1 23.3 17.0 15.6 9.4 10.6 14.1 14.8 19.1 19.1 20.4 9.4
High Min (°C)
31.6 30.1 29.3 27.3 24.0 20.3 20.1 21.3 26.6 27.6 30.1 30.7 31.6
Low Min (°C)
15.4 13.1 13.1 6.2 1.8 -1.3 -2.9 -1.1 1.0 6.1 10.3 13.4 -2.9
High Rain (mm)
213.0 148.8 153.8 44.6 106.4 54.8 61.8 26.6 40.2 34.2 102.4 109.4 213.0

Mt Isa Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
39.9 40.5 37.3 35.0 31.1 28.8 26.9 31.6 35.3 38.2 39.6 39.7 34.2
Low Mn. Max (°C)
30.0 31.3 30.2 26.9 24.2 20.4 22.6 24.9 27.6 31.9 32.7 31.6 29.9
High Mn. Min (°C)
26.2 25.5 24.4 20.9 17.7 13.9 12.9 13.8 17.8 21.7 24.1 25.8 19.3
Low Mn. Min (°C)
21.1 19.9 18.4 15.3 9.3 6.5 5.0 5.9 10.8 14.6 19.7 20.1 15.4
High Rain (mm)
535.2 251.8 276.6 167.8 176.4 111.8 67.4 41.8 68.6 91.4 205.6 275.2 1092.4
Low Rain (mm)
0.2 2.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.6 101.6

Mt Isa Annual Temperatures & Rainfall

MOUNT ISA AERO

Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall

Mt Isa Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40.0°C
4.8 2.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.7 3.8 6.4 18.1
≥ 35.0°C
21.4 15.7 13.7 3.9 0.1 0.0 0.0 0.3 5.2 16.3 21.9 23.7 120.2
≥ 30.0°C
28.4 25.6 28.4 23.5 8.6 1.6 1.6 7.4 20.3 27.6 28.4 29.3 226.7
≤ 2.0°C
0.0 0.0 0.0 0.0 0.0 0.7 1.5 0.7 0.1 0.0 0.0 0.0 2.9
≤ 0.0°C
0.0 0.0 0.0 0.0 0.0 0.1 0.4 0.1 0.0 0.0 0.0 0.0 0.6

Mt Isa 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
40.0 39.0 37.0 34.7 31.2 28.5 28.4 31.2 35.3 38.0 39.8 40.5 37.9
Low Max
32.0 31.4 31.7 28.9 24.3 21.1 21.0 23.2 26.8 30.9 33.1 33.5 25.1
High Min
26.3 25.7 24.4 22.0 18.5 14.3 13.1 15.0 18.8 22.6 24.9 26.1 24.0
Low Min
21.3 21.2 18.6 15.0 9.4 5.6 4.0 5.6 9.8 14.3 17.9 20.2 9.3

Mt Isa Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
47 47 47 48 48 48 48 47 47 47 48 48 47.4
Earliest Entry
1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1966 1966
Latest Entry
2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014
Years of Maxima
47 47 48 48 48 48 48 47 47 47 48 48 47.4
Earliest Entry
1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1966 1966
Latest Entry
2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014
Years of Rainfall
48 48 48 48 47 48 48 48 47 48 48 48 47.7
Earliest Entry
1967 1967 1967 1967 1968 1967 1967 1967 1968 1967 1967 1966 1966
Latest Entry
2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014

Station Details

MOUNT ISA AERO
Northwest, Queensland
20.6778°S 139.4875°E 340m AMSL
Commenced 1966
Display Your Local Weather

Weather News

Heating up across the southeastern capitals

11:19 EDT

A couple of scorchers are on the way for Adelaide, Melbourne, Canberra and Sydney over the next few days.

Darwin not quite that wet (yet)

11:13 EDT

Following a good start to January 2017 rainfall, when 125mm fell during the first 48 hours of the year, conditions have been relatively dry for the Northern Territory capital.

Steamy night in Brisbane

14:29 EDT

In the early hours of the morning, Brisbane had its warmest minimum temperature since at least 1999, when the mercury halted its descent at 28 degrees just after 3am.