Mt Isa Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
36.6 35.4 34.0 31.5 27.4 24.4 24.0 26.8 30.4 34.2 36.3 37.2 31.5
Mean Min (°C)
25.0 24.5 23.2 20.2 16.2 12.6 11.6 13.6 17.1 21.0 23.5 24.6 19.4
Mean Rain (mm)
98.9 91.2 64.3 14.8 15.0 11.0 7.2 3.0 8.0 18.7 31.3 64.1 420.4
Median Rain (mm)
68.7 79.7 33.7 2.6 2.7 0.0 0.0 0.0 0.0 10.0 21.0 52.2 376.5
Mean Rain Days
8.7 8.2 5.3 1.7 1.5 1.1 1.0 0.7 1.3 2.9 4.7 6.5 43.1

Mt Isa Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
45.6 43.5 41.1 38.6 35.9 32.0 32.2 35.8 40.4 42.3 43.0 44.7 45.6
Low Max (°C)
22.5 22.7 21.4 16.7 15.0 12.5 11.2 15.5 16.4 18.3 19.5 22.3 11.2
High Min (°C)
31.7 30.6 29.1 27.5 25.5 20.0 23.3 21.4 28.3 28.6 30.6 32.2 32.2
Low Min (°C)
16.7 17.0 13.0 11.0 6.7 2.5 3.0 4.6 8.0 9.5 13.9 16.4 2.5
High Rain (mm)
196.2 101.0 124.0 79.2 84.6 65.4 83.2 44.7 61.8 61.7 93.4 127.4 196.2

Mt Isa Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
40.0 40.4 36.8 33.7 30.3 26.9 26.5 29.3 33.6 37.8 39.5 39.4 33.2
Low Mn. Max (°C)
30.1 30.7 30.0 26.4 23.4 21.7 21.9 23.6 27.4 31.2 33.6 33.9 29.6
High Mn. Min (°C)
27.3 27.8 25.7 22.0 18.3 15.3 14.2 15.5 19.4 25.0 25.7 27.1 21.0
Low Mn. Min (°C)
21.9 22.6 21.8 18.1 13.5 10.0 9.8 11.5 13.7 18.6 21.5 23.1 17.9
High Rain (mm)
563.4 276.4 316.8 141.2 145.4 124.2 95.2 48.5 111.0 99.2 214.8 237.2 1113.0
Low Rain (mm)
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 104.9

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
6.4 3.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.4 3.9 7.1 20.6
≥ 35°C
22.2 16.0 12.8 2.6 0.1 0.0 0.0 0.2 2.8 14.7 21.5 24.0 115.9
≥ 30°C
28.7 25.9 27.9 22.7 7.2 1.1 1.0 6.3 18.8 27.6 28.4 29.6 224.8
≤ 2°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
≤ 0°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
40.5 39.4 36.8 34.4 30.9 27.9 27.9 30.8 34.2 37.8 39.8 40.7 37.9
Low Max
32.3 31.4 31.0 28.3 23.5 20.6 20.3 22.6 26.0 30.6 32.9 33.7 24.5
High Min
27.8 27.0 25.6 23.2 19.8 16.3 15.2 17.2 21.2 24.5 26.3 27.3 25.5
Low Min
22.2 22.2 20.7 17.0 12.2 8.9 8.0 10.0 13.0 17.5 20.4 21.8 12.2

Mt Isa Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
28 28 28 28 28 28 28 27 27 27 27 27 27.0
Earliest Entry
1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965
Latest Entry
1992 1992 1992 1992 1992 1992 1992 1991 1991 1991 1991 1991 1992
Years of Maxima
28 28 28 28 28 28 28 27 27 27 27 27 27.0
Earliest Entry
1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965
Latest Entry
1992 1992 1992 1992 1992 1992 1992 1991 1991 1991 1991 1991 1992
Years of Rainfall
93 92 91 90 88 90 91 92 92 91 91 91 90.0
Earliest Entry
1932 1932 1932 1932 1932 1932 1932 1932 1932 1932 1932 1932 1932
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2023 2024

Station Details

MOUNT ISA MINE
Northwest, Queensland
20.7361°S 139.4817°E 381m AMSL
Commenced 1932

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Severe storms striking eastern Australia on Wednesday

09:35 AEDT Southeast Queensland and northern NSW will be hit by a flurry of severe thunderstorms on Wednesday as a widespread storm outbreak erupts over eastern Australia.

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