Mt Isa Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
36.4 35.4 34.4 32.0 28.0 24.9 24.8 27.4 31.3 34.7 36.6 37.1 31.9
Mean Min (°C)
23.7 23.3 21.8 18.5 13.8 10.0 8.7 10.2 14.2 18.4 21.5 23.1 17.3
Mean Rain (mm)
118.1 101.3 63.6 14.3 12.7 6.5 6.0 3.6 8.7 17.9 38.6 76.0 470.8
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
9.9 9.0 5.7 2.2 1.7 1.1 0.9 1.0 1.7 3.2 5.4 8.0 48.6

Mt Isa Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
45.9 43.5 41.9 38.6 37.8 34.3 35.2 36.4 39.8 42.5 43.9 45.1 45.9
Low Max (°C)
22.8 23.1 23.3 17.0 15.6 9.4 10.1 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 5.8 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 70.3 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 38.3 35.1 31.1 28.8 26.9 31.6 35.3 38.2 39.8 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 41.8 117.0 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

Mt Isa annual climate

Mt Isa Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
4.8 2.4 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.8 4.0 6.4 18.3
≥ 35°C
21.5 16.2 14.3 4.3 0.2 0.0 0.0 0.3 5.1 16.3 22.1 23.6 120.6
≥ 30°C
28.4 25.7 28.6 23.5 9.1 1.7 1.7 7.5 20.2 27.6 28.4 29.2 225.5
≤ 2°C
0.0 0.0 0.0 0.0 0.0 0.7 1.4 0.7 0.1 0.0 0.0 0.0 2.7
≤ 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
50 50 50 50 50 50 50 49 49 49 50 50 49.8
Earliest Entry
1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1966 1966
Latest Entry
2017 2017 2017 2017 2017 2016 2016 2016 2016 2016 2016 2016 2017
Years of Maxima
50 50 51 50 50 50 50 49 49 49 50 50 49.8
Earliest Entry
1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1966 1966
Latest Entry
2017 2017 2017 2017 2017 2016 2016 2016 2016 2016 2016 2016 2017
Years of Rainfall
51 51 51 51 50 50 50 50 49 50 50 50 50.1
Earliest Entry
1967 1967 1967 1967 1968 1967 1967 1967 1968 1967 1967 1966 1966
Latest Entry
2017 2017 2017 2017 2017 2016 2016 2016 2016 2016 2016 2016 2017

Station Details

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

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Strong front to lash southern WA tonight

15:04 AEST A strong cold front crossing the southwest corner of Western Australia tonight could cause damaging, possibly destructive, wind gusts in some areas.

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