Barrow Island Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
33.3 33.8 33.5 31.3 27.5 24.3 23.8 25.3 27.3 29.6 30.6 32.3 29.3
Mean Min (°C)
25.9 26.3 26.6 24.6 21.3 18.8 17.6 17.9 19.7 21.8 22.9 24.5 22.3
Mean Rain (mm)
20.7 33.1 51.5 33.3 51.1 32.9 13.1 3.7 1.6 1.7 1.5 6.3 270.1
Median Rain (mm)
0.2 3.2 18.6 12.0 8.9 1.4 1.3 1.6 0.0 0.0 0.0 0.0 167.2
Mean Rain Days
2.9 3.1 3.4 2.6 3.9 4.2 3.5 3.6 1.5 0.6 0.5 0.9 30.6

Barrow Island Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
45.0 41.2 40.3 38.2 33.8 30.9 29.2 33.3 36.0 39.5 40.0 42.4 45.0
Low Max (°C)
26.8 26.9 26.7 22.3 20.5 19.1 19.1 20.2 22.0 23.9 25.3 27.0 19.1
High Min (°C)
31.0 31.2 30.7 29.2 27.0 24.3 22.4 23.0 25.3 27.3 28.8 29.0 31.2
Low Min (°C)
21.0 21.5 21.0 19.0 14.3 12.8 11.8 12.2 14.7 16.0 18.0 19.8 11.8
High Rain (mm)
90.8 283.0 180.6 234.2 224.4 83.0 48.4 16.2 10.4 24.6 25.4 52.8 283.0

Barrow Island Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
35.5 36.1 35.5 34.0 29.5 25.7 25.3 26.9 29.5 33.8 32.7 35.5 30.3
Low Mn. Max (°C)
30.7 31.7 31.8 28.7 25.1 22.8 22.7 23.7 25.7 26.9 28.5 29.8 28.6
High Mn. Min (°C)
27.8 27.6 27.4 26.3 22.5 20.6 19.3 19.2 21.8 23.7 24.6 26.2 22.8
Low Mn. Min (°C)
24.1 24.4 25.4 23.5 19.9 17.4 15.6 16.5 18.6 20.0 21.4 22.6 21.8
High Rain (mm)
113.0 196.0 271.0 296.8 283.2 214.6 112.8 18.0 11.2 34.0 27.0 53.2 639.6
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 83.8

Barrow Island Annual Temperatures & Rainfall

Barrow Island annual climate

Barrow Island Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.6 0.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.2
≥ 35°C
7.6 8.7 8.6 1.8 0.0 0.0 0.0 0.0 0.0 1.3 2.2 5.5 35.4
≥ 30°C
27.4 26.3 29.0 22.4 4.7 0.2 0.0 0.6 4.4 13.6 16.5 23.7 166.2
≤ 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

Barrow Island 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
36.0 36.0 35.9 33.3 30.0 26.0 25.1 26.7 29.0 32.0 33.0 35.0 33.7
Low Max
30.1 30.8 31.0 28.8 25.0 22.5 22.1 23.2 24.3 26.5 27.5 29.0 24.1
High Min
27.0 28.0 28.0 26.7 23.3 21.0 20.0 19.7 21.0 23.4 24.6 26.0 26.1
Low Min
24.0 24.4 24.7 22.4 19.2 16.0 15.1 15.9 17.8 19.6 20.9 22.4 18.0

Barrow Island Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
23 24 26 26 25 25 25 26 26 26 24 25 24.0
Earliest Entry
2000 1999 1999 1999 1999 2000 1999 1999 1999 1999 1999 1999 1999
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2024
Years of Maxima
23 24 26 26 25 25 25 26 26 26 24 25 24.0
Earliest Entry
2000 1999 1999 1999 1999 2000 1999 1999 1999 1999 1999 1999 1999
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2024
Years of Rainfall
23 24 26 26 25 25 25 26 26 26 24 23 24.0
Earliest Entry
2000 1999 1999 1999 1999 2000 1999 1999 1999 1999 1999 1999 1999
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2024

Station Details

BARROW ISLAND AIRPORT
Pilbara, Western Australia
20.8740°S 115.4066°E 7m AMSL
Commenced 1998

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