Mount Barker Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
26.1 26.0 24.0 21.2 17.7 15.2 14.3 15.0 16.8 18.6 21.8 24.2 20.0
Mean Min (°C)
12.8 13.1 12.4 10.7 8.7 7.1 6.1 6.1 7.0 8.0 9.9 11.5 9.4
Mean Rain (mm)
24.0 24.1 36.7 55.8 85.5 92.1 107.1 90.5 77.6 66.0 44.1 30.1 730.5
Median Rain (mm)
16.2 14.4 25.7 46.7 77.4 86.6 100.5 84.6 72.4 62.1 34.8 23.8 720.0
Mean Rain Days
7.4 7.0 9.6 12.1 16.0 18.3 20.4 19.6 17.3 15.3 10.8 8.6 158.5

Mount Barker Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
43.9 43.6 40.6 37.2 32.2 24.3 22.2 25.0 29.3 35.6 39.4 42.9 43.9
Low Max (°C)
13.9 13.3 12.5 10.0 7.8 6.7 7.0 5.6 8.3 7.8 7.7 12.2 5.6
High Min (°C)
26.7 23.3 24.8 21.7 18.2 15.0 12.8 16.5 18.4 18.4 27.4 21.7 27.4
Low Min (°C)
1.7 4.0 3.6 2.2 0.6 -7.5 -2.2 -1.3 -2.0 0.1 1.1 1.1 -7.5
High Rain (mm)
132.0 72.1 57.4 139.2 94.6 68.1 72.4 82.9 104.8 79.2 63.8 50.8 139.2

Mount Barker Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
29.0 30.2 27.3 24.3 21.1 17.2 16.4 18.2 20.1 22.6 24.6 29.2 21.6
Low Mn. Max (°C)
22.4 21.9 19.0 17.9 14.6 12.7 12.6 13.1 13.8 15.7 17.5 19.5 18.5
High Mn. Min (°C)
16.3 15.6 14.9 13.5 11.6 9.0 7.8 8.5 8.7 9.9 15.6 15.5 10.7
Low Mn. Min (°C)
10.1 9.7 10.0 7.9 6.2 4.4 4.2 4.0 5.4 6.1 7.9 8.2 7.7
High Rain (mm)
179.3 178.5 128.6 233.9 242.8 209.3 260.9 173.3 148.4 160.0 154.8 109.8 1094.6
Low Rain (mm)
0.8 1.3 2.0 2.8 20.8 24.8 35.0 29.8 18.4 16.3 3.3 2.0 400.6

Mount Barker Annual Temperatures & Rainfall

Mount Barker annual climate

Mount Barker Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.3 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.7
≥ 35°C
2.4 2.4 1.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.2 7.7
≥ 30°C
7.2 6.4 4.7 1.1 0.0 0.0 0.0 0.0 0.0 0.4 2.2 4.5 26.5
≤ 2°C
0.0 0.0 0.0 0.0 0.2 0.7 1.7 1.3 0.6 0.2 0.0 0.0 4.8
≤ 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

Mount Barker 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
32.5 32.8 30.3 26.4 21.2 17.8 16.7 17.8 20.3 23.3 27.2 30.0 26.8
Low Max
20.2 20.0 18.4 16.4 14.4 12.5 11.7 11.9 13.3 14.4 16.7 18.6 14.0
High Min
15.6 16.1 15.6 13.9 11.8 10.0 8.7 8.8 9.7 10.9 12.8 14.2 13.6
Low Min
9.9 10.0 9.4 7.5 5.6 4.4 3.3 3.4 4.2 5.0 6.7 8.4 5.4

Mount Barker Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
87 88 88 88 88 88 87 88 88 88 87 88 87.0
Earliest Entry
1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907
Latest Entry
2025 2023 2023 2023 2023 2023 2023 2023 2024 2024 2024 2024 2025
Years of Maxima
88 88 86 87 88 88 87 88 87 87 85 88 87.0
Earliest Entry
1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907
Latest Entry
2025 2023 2023 2023 2023 2023 2023 2023 2024 2024 2024 2024 2025
Years of Rainfall
111 114 108 105 105 97 94 95 97 104 110 108 109.0
Earliest Entry
1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907
Latest Entry
2025 2023 2024 2024 2024 2023 2024 2024 2024 2024 2024 2024 2025

Station Details

MOUNT BARKER
Southern Coastal, Western Australia
34.6250°S 117.6361°E 300m AMSL
Commenced 1886

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