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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

Victoria weather: Strong winds hit Melbourne, southern parts of state as cold front moves through

21:31 EST

A deep cold front has swept through Melbourne and parts of southern Victoria, uprooting trees and damaging buildings with wind gusts of more than 100 kilometres per hour (kph).

Dry season storm dumps heavy rain on Darwin

18:23 EST

A 90-minute downpour has seen Darwin record more than twice as much rain as usual for the entire month of May.

Wet season wraps up with below average rainfall for many Top End cattle stations

17:53 EST

Despite a promising start to the wet season, many Top End cattle stations are entering the dry season with The bulk of the season's rain came with a monsoon trough which moved over the Northern Territory in , with little follow-up rain throughout January and February.