Mortlake Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
26.3 26.2 24.0 20.0 16.2 13.6 13.0 14.0 15.9 18.2 20.9 23.6 19.3
Mean Min (°C)
11.2 11.4 10.0 8.1 6.5 5.0 4.6 4.9 5.7 6.5 8.1 9.3 7.6
Mean Rain (mm)
37.4 30.9 31.5 43.7 57.2 55.7 62.6 64.7 57.4 55.6 49.0 40.6 589.9
Median Rain (mm)
23.2 29.1 31.3 43.0 37.7 46.8 50.4 63.8 53.4 39.3 48.1 36.8 565.8
Mean Rain Days
7.8 7.3 10.5 14.2 17.7 18.3 20.3 19.2 18.7 16.9 12.7 11.2 175.8

Mortlake Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
44.9 46.0 41.5 36.9 27.9 23.2 19.1 23.4 28.4 35.8 38.3 44.0 46.0
Low Max (°C)
14.1 13.8 13.4 11.2 6.7 8.6 7.1 6.7 7.9 9.7 11.2 12.3 6.7
High Min (°C)
27.5 23.8 22.4 21.3 15.6 14.3 12.3 13.3 14.5 17.5 19.8 21.1 27.5
Low Min (°C)
1.1 2.0 -1.3 -2.5 -2.9 -5.0 -5.3 -13.2 -3.0 -3.9 -1.4 -0.6 -13.2
High Rain (mm)
59.8 49.0 30.8 36.6 47.4 24.6 52.2 42.6 33.6 50.0 39.4 67.0 67.0

Mortlake Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
30.1 30.9 28.2 23.4 18.3 15.2 13.9 16.5 18.1 23.8 25.6 28.8 20.6
Low Mn. Max (°C)
21.6 22.8 21.3 16.5 14.1 11.9 11.6 12.3 13.0 15.0 18.0 19.0 17.9
High Mn. Min (°C)
14.6 14.4 12.4 10.6 9.7 7.0 6.2 6.6 7.6 8.5 11.1 11.6 8.4
Low Mn. Min (°C)
7.5 6.8 7.2 6.0 5.1 2.5 2.2 2.9 4.3 3.8 5.4 6.4 6.8
High Rain (mm)
134.4 87.0 63.2 117.2 132.0 100.8 128.0 167.0 119.8 146.8 96.4 129.0 830.8
Low Rain (mm)
1.6 0.8 3.6 11.6 7.2 12.0 22.8 23.4 23.4 12.8 19.6 5.6 386.6

Mortlake Annual Temperatures & Rainfall

Mortlake annual climate

Mortlake Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.8 0.4 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.8
≥ 35°C
4.0 3.0 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.6 10.2
≥ 30°C
7.9 7.9 5.5 0.9 0.0 0.0 0.0 0.0 0.0 0.6 2.4 5.0 30.1
≤ 2°C
0.1 0.0 0.4 1.9 3.2 6.1 6.3 5.5 4.2 3.7 1.6 0.5 33.6
≤ 0°C
0.0 0.0 0.0 0.5 0.9 2.3 2.1 1.8 0.8 0.8 0.3 0.0 9.5

Mortlake 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
33.5 33.9 30.6 25.4 19.3 15.5 14.8 16.3 18.7 22.9 27.1 30.4 26.2
Low Max
19.3 19.3 18.0 15.0 13.4 11.4 11.1 11.4 12.5 13.6 15.2 17.4 12.9
High Min
15.5 15.9 13.7 11.8 10.4 8.5 7.5 8.1 9.1 10.0 12.0 13.4 12.1
Low Min
5.6 6.7 5.2 3.5 2.6 1.2 1.3 1.6 2.0 2.0 3.4 4.6 2.9

Mortlake Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
33 34 33 33 33 32 35 34 34 34 34 33 33.0
Earliest Entry
1991 1991 1991 1991 1991 1991 1990 1990 1990 1990 1990 1990 1990
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2023 2024
Years of Maxima
33 34 33 34 34 33 35 35 35 34 34 34 33.0
Earliest Entry
1991 1991 1991 1991 1991 1991 1990 1990 1990 1990 1990 1990 1990
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2023 2024
Years of Rainfall
28 29 29 29 29 30 30 30 30 29 29 29 28.0
Earliest Entry
1995 1995 1995 1995 1995 1994 1994 1994 1994 1994 1994 1994 1994
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2023 2024

Station Details

MORTLAKE RACECOURSE
South West, Victoria
38.0737°S 142.7744°E 130m AMSL
Commenced 1990

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