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Home › Climate › Mt Isa Climate

Mt Isa Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
 36.3 35.2 34.2 31.8 27.8 24.8 24.7 27.3 31.2 34.6 36.3 37.1 31.8
Mean Min (°C)
 23.7 23.3 21.7 18.4 13.8 10.0 8.6 10.3 14.3 18.5 21.4 23.0 17.3
Mean Rain (mm)
 117.7 103.3 66.4 15.4 12.9 6.1 6.1 3.8 6.9 19.5 39.8 72.8 475.1
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
 10.0 9.2 5.9 2.2 1.8 1.0 0.9 0.9 1.7 3.4 5.4 7.5 48.4

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 39.5 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 28.9 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)
 39.3 40.5 36.9 34.8 31.1 28.8 26.9 31.6 33.8 37.6 39.0 39.7 33.6
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 20.7 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 6.9 5.0 5.9 10.8 14.6 19.7 20.1 15.6
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 4.6 161.1

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
 4.5 2.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.6 3.5 6.3 16.8
≥ 35°C
 21.1 15.6 13.3 3.7 0.1 0.0 0.0 0.3 4.9 15.9 21.5 23.4 116.3
≥ 30°C
 28.3 25.6 28.3 23.2 8.2 1.6 1.6 7.3 20.0 27.5 28.3 29.2 222.2
≤ 2°C
 0.0 0.0 0.0 0.0 0.0 0.6 1.4 0.6 0.1 0.0 0.0 0.0 2.6
≤ 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 0.5

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
 45 45 45 46 45 45 45 44 44 45 45 45 44.7
Earliest Entry
 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1966 1966
Latest Entry
 2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012
Years of Maxima
 45 45 46 46 45 45 45 44 44 45 45 45 44.8
Earliest Entry
 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1966 1966
Latest Entry
 2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012
Years of Rainfall
 46 46 46 46 44 45 45 45 44 45 45 46 45.1
Earliest Entry
 1967 1967 1967 1967 1968 1967 1967 1967 1968 1967 1967 1966 1966
Latest Entry
 2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012

Station Details

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

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