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Mortlake Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
25.7 26.2 23.8 20.0 16.2 13.5 13.0 13.9 15.7 17.8 20.6 23.3 19.1
Mean Min (°C)
10.8 11.5 9.8 7.8 6.5 5.0 4.6 4.9 5.7 6.3 7.8 9.2 7.5
Mean Rain (mm)
35.6 35.7 33.6 44.3 51.2 52.7 65.4 71.5 58.9 55.4 51.6 46.4 605.5
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
7.9 7.4 10.7 14.1 17.5 18.1 19.7 19.3 19.1 16.9 12.4 11.3 171.3

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 34.1 27.9 23.2 19.1 23.4 27.2 35.8 38.3 41.7 46.0
Low Max (°C)
14.1 13.8 13.9 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 11.3 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 -2.9 -3.9 -1.4 -0.6 -13.2
High Rain (mm)
59.8 49.0 30.8 33.0 37.0 24.4 52.2 42.6 28.0 28.0 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)
28.4 30.9 28.2 23.4 18.0 15.2 13.9 15.6 17.5 20.5 25.6 26.4 20.2
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)
13.3 14.4 11.7 10.6 9.7 7.0 5.6 6.6 7.6 8.4 11.0 10.5 8.3
Low Mn. Min (°C)
7.5 6.9 7.2 6.0 5.2 2.5 2.5 2.9 4.3 3.8 5.4 6.4 6.8
High Rain (mm)
134.4 87.0 63.2 75.2 122.8 100.8 128.0 167.0 95.4 96.0 96.4 129.0 830.8
Low Rain (mm)
1.6 0.8 9.2 11.6 7.2 22.0 22.8 23.4 34.0 15.8 20.2 5.6 386.6

Mortlake Annual Temperatures & Rainfall

MORTLAKE RACECOURSE

Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall

Mortlake Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.7 0.5 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.4
≥ 35°C
3.5 3.1 1.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.5 9.6
≥ 30°C
7.0 8.0 5.3 0.8 0.0 0.0 0.0 0.0 0.0 0.4 2.0 4.5 27.3
≤ 2°C
0.2 0.0 0.5 2.2 3.2 6.0 6.0 5.0 3.7 4.1 1.8 0.5 32.7
≤ 0°C
0.0 0.0 0.0 0.7 0.8 2.3 1.7 1.4 0.8 1.0 0.3 0.0 8.8

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
22 23 22 22 23 22 23 23 23 24 24 23 22.9
Earliest Entry
1991 1991 1991 1991 1991 1991 1990 1990 1990 1990 1990 1990 1990
Latest Entry
2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013
Years of Maxima
22 23 22 22 22 22 24 23 24 23 24 24 22.9
Earliest Entry
1991 1991 1991 1991 1991 1991 1990 1990 1990 1990 1990 1990 1990
Latest Entry
2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013
Years of Rainfall
18 18 18 18 18 19 19 19 20 19 19 19 18.7
Earliest Entry
1995 1995 1995 1995 1995 1994 1994 1994 1994 1994 1994 1994 1994
Latest Entry
2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013

Station Details

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

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