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Casterton Climate

Casterton Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
27.8 26.9 24.7 20.5 16.2 13.9 13.1 14.5 16.2 19.2 23.0 24.8 20.1
Mean Min (°C)
12.3 12.5 10.8 8.9 7.1 4.8 4.7 5.5 6.0 6.8 9.6 10.1 8.3
Mean Rain (mm)
52.7 40.3 39.7 42.9 55.5 54.2 74.2 82.6 65.1 42.9 42.2 57.3 645.2
Median Rain (mm)
17.8 21.2 23.7 40.9 40.6 46.8 63.5 80.2 63.3 39.9 32.3 35.3 573.1
Mean Rain Days
7.6 6.1 9.0 12.9 18.4 20.0 21.3 22.1 18.7 13.9 11.4 11.6 154.9

Casterton Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
44.5 42.9 40.9 34.6 26.9 22.4 19.2 23.4 26.5 34.5 38.2 42.2 44.5
Low Max (°C)
17.6 15.5 15.7 12.1 10.9 9.0 8.2 9.7 9.5 10.5 12.7 13.6 8.2
High Min (°C)
25.8 26.0 22.2 20.8 15.3 13.7 11.2 12.4 14.3 18.1 23.0 20.7 26.0
Low Min (°C)
3.0 3.5 0.2 0.5 -2.2 -3.1 -3.7 -1.6 -1.7 -1.9 -0.4 0.7 -3.7
High Rain (mm)
96.4 91.6 34.0 29.0 39.8 34.2 30.6 20.2 29.0 26.2 74.4 74.0 96.4

Casterton Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
29.2 29.5 28.3 23.6 17.6 15.4 13.7 15.7 17.0 21.2 26.4 26.6 20.6
Low Mn. Max (°C)
25.2 24.5 21.1 17.3 14.5 12.3 12.5 12.7 14.5 17.5 20.9 21.5 19.1
High Mn. Min (°C)
13.6 14.2 11.4 11.1 10.2 6.8 5.8 6.7 6.5 8.5 11.8 10.9 8.8
Low Mn. Min (°C)
10.6 11.0 9.2 7.2 5.2 2.3 3.8 3.9 5.0 4.7 8.3 8.6 7.3
High Rain (mm)
143.4 147.0 114.6 64.0 131.6 88.4 125.2 132.8 74.4 93.6 106.6 128.2 955.6
Low Rain (mm)
5.6 0.0 11.4 26.2 18.4 12.0 38.0 26.2 54.4 11.8 12.8 8.0 389.8

Casterton Annual Temperatures & Rainfall

CASTERTON

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

Casterton Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40.0°C
1.6 0.1 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.1
≥ 35.0°C
5.3 3.0 1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 2.4 11.6
≥ 30.0°C
9.6 8.1 6.0 1.5 0.0 0.0 0.0 0.0 0.0 1.3 4.1 6.3 33.3
≤ 2.0°C
0.0 0.0 0.1 0.4 2.3 6.7 7.3 4.3 4.0 4.4 0.3 0.3 26.4
≤ 0.0°C
0.0 0.0 0.0 0.0 1.0 2.7 2.7 1.3 0.6 1.7 0.1 0.0 8.9

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
35.3 34.4 31.9 25.4 18.9 15.7 14.9 17.2 19.4 25.1 29.9 31.7 27.7
Low Max
22.1 21.0 18.7 15.9 13.4 11.6 11.3 11.9 13.1 14.4 17.0 18.9 13.2
High Min
16.3 16.3 15.0 12.3 10.9 8.1 8.0 8.8 9.7 11.2 13.2 14.6 12.9
Low Min
7.7 8.3 6.8 4.9 3.3 0.8 0.6 2.0 2.1 2.0 5.1 5.6 3.4

Casterton Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
7 7 8 8 7 7 7 7 7 7 7 7 7.2
Earliest Entry
2006 2006 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005
Latest Entry
2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012
Years of Maxima
7 7 8 8 7 7 7 7 7 7 7 7 7.2
Earliest Entry
2006 2006 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005
Latest Entry
2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012
Years of Rainfall
7 8 8 8 7 7 7 7 7 7 7 7 7.2
Earliest Entry
2006 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005
Latest Entry
2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012

Station Details

CASTERTON
South West, Victoria
37.5830°S 141.3339°E 131m AMSL
Commenced 2005
Display Your Local Weather

Weather News

SA weather: Power outages hit as storms sweep across state

00:59 EST

Winds sweeping South Australia have plunged thousands of residents into darkness again for another night only a day after the entire state suffered a blackout.

SA weather as it happened: Wild winds, flooding continue; thousands without power for second night

22:19 EST

South Australia has been lashed with severe weather for the second night in a row, with strong winds battering much of the state.

Unusual frost affecting harvests in Wheatbelt, South West and Great Southern regions

21:57 EST

Below-freezing temperatures throughout September have affected large numbers of farmers in the Wheatbelt, South West and Great Southern regions, taking the edge out of what was shaping up as a bumper harvest.