Casterton Climate

Casterton Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
28.1 27.2 24.9 20.5 16.2 13.7 13.1 14.2 16.2 19.3 22.5 25.2 20.0
Mean Min (°C)
12.1 12.5 11.0 8.8 7.2 4.9 4.9 5.3 6.1 7.0 9.1 10.1 8.2
Mean Rain (mm)
33.9 31.3 31.2 44.6 70.6 65.1 82.9 81.5 67.7 47.4 38.9 39.8 630.3
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
6.5 6.5 9.3 12.9 19.4 19.4 22.4 22.1 18.8 13.9 11.4 10.0 171.7

Casterton Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
44.5 43.3 40.9 36.1 27.5 22.4 19.2 23.4 26.6 34.5 38.2 44.5 44.5
Low Max (°C)
16.5 15.5 14.1 12.1 8.5 8.9 7.6 9.7 9.5 10.5 11.9 13.6 7.6
High Min (°C)
25.8 26.0 23.1 20.8 15.8 13.7 12.4 12.4 14.8 19.7 23.0 22.2 26.0
Low Min (°C)
2.8 3.5 0.2 0.4 -2.2 -3.3 -3.7 -2.1 -1.7 -1.9 -0.4 0.7 -3.7
High Rain (mm)
96.4 91.6 34.0 29.0 52.4 34.2 30.6 21.4 46.6 34.8 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)
30.6 29.5 28.3 23.6 18.0 15.4 13.7 15.7 17.8 23.5 26.4 29.9 20.7
Low Mn. Max (°C)
25.2 24.5 21.1 17.2 14.5 12.3 12.0 12.7 14.5 17.3 19.7 21.5 19.1
High Mn. Min (°C)
13.6 14.2 13.3 11.1 10.2 7.0 6.5 6.7 8.2 8.7 11.8 11.6 8.8
Low Mn. Min (°C)
10.6 11.0 8.7 6.7 5.2 2.3 3.3 3.9 4.7 4.7 7.1 8.6 7.3
High Rain (mm)
143.4 147.0 114.6 96.2 131.6 121.6 131.6 143.6 123.0 100.8 106.6 128.2 955.6
Low Rain (mm)
0.0 0.0 11.4 23.0 18.4 12.0 38.0 26.2 29.2 5.2 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
1.8 0.2 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.4
≥ 35.0°C
5.2 3.5 1.6 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.7 13.1
≥ 30.0°C
10.2 8.7 6.1 1.2 0.0 0.0 0.0 0.0 0.0 1.1 4.0 6.6 36.8
≤ 2.0°C
0.0 0.0 0.1 0.5 2.1 6.9 6.1 4.6 3.8 3.2 0.5 0.2 27.9
≤ 0.0°C
0.0 0.0 0.0 0.0 0.5 2.9 2.1 1.6 0.6 0.8 0.1 0.0 8.6

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
16 15 16 16 16 16 16 16 16 16 16 16 16.0
Earliest Entry
2006 2006 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005
Latest Entry
2021 2021 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2021
Years of Maxima
16 15 16 16 16 16 16 16 16 16 16 16 16.0
Earliest Entry
2006 2006 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005
Latest Entry
2021 2021 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2021
Years of Rainfall
15 15 15 16 16 16 16 16 16 16 16 16 16.0
Earliest Entry
2006 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005 2005
Latest Entry
2021 2021 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2021

Station Details

CASTERTON
South West, Victoria
37.5831°S 141.3340°E 131m AMSL
Commenced 2005
Display Your Local Weather

Weather News

Severe storms hitting WA

15:51 EDT

A mass of tropical air is plunging over Western Australia today, causing heavy rain and severe thunderstorms across the state's western and southwestern inland.

Tropical Cyclone Niran update

12:02 EDT

Northern Queensland is being spared from the worst impacts of Tropical Cyclone Niran as the system gains strength just a few hundred kilometres from Cairns.

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