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Colac Shire Office Long-term Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) |
26.0 | 26.3 | 23.6 | 19.6 | 15.7 | 13.5 | 12.5 | 13.8 | 15.7 | 18.2 | 20.5 | 23.2 | 19.0 |
| Mean Min (°C) |
10.5 | 11.0 | 10.1 | 7.8 | 6.2 | 4.4 | 3.8 | 4.6 | 5.5 | 6.8 | 8.1 | 9.4 | 7.3 |
| Mean Rain (mm) |
35.8 | 33.9 | 41.2 | 55.1 | 69.8 | 74.3 | 75.5 | 85.1 | 75.1 | 69.9 | 56.8 | 43.8 | 716.8 |
| Median Rain (mm) |
24.6 | 22.9 | 34.1 | 50.3 | 69.2 | 69.7 | 70.8 | 81.0 | 74.7 | 62.0 | 52.3 | 39.0 | 693.2 |
| Mean Rain Days |
7.0 | 6.2 | 8.5 | 12.0 | 16.2 | 17.1 | 19.0 | 18.7 | 16.2 | 14.2 | 11.4 | 9.3 | 154.1 |
Colac Shire Office Daily Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) |
42.6 | 41.3 | 38.6 | 32.2 | 26.4 | 21.7 | 21.2 | 25.2 | 28.3 | 33.6 | 36.9 | 41.8 | 42.6 |
| Low Max (°C) |
15.6 | 14.4 | 14.1 | 10.0 | 6.6 | 6.7 | 7.4 | 6.7 | 8.9 | 10.2 | 12.2 | 13.3 | 6.6 |
| High Min (°C) |
23.5 | 26.8 | 20.6 | 17.8 | 14.4 | 12.6 | 11.4 | 12.8 | 15.2 | 17.5 | 17.9 | 21.4 | 26.8 |
| Low Min (°C) |
0.6 | 1.1 | 0.0 | -3.9 | -3.3 | -4.7 | -5.0 | -3.9 | -3.9 | -3.3 | -2.8 | -0.6 | -5.0 |
| High Rain (mm) |
91.0 | 102.9 | 80.0 | 104.6 | 55.1 | 37.4 | 40.4 | 51.1 | 65.0 | 49.5 | 100.0 | 55.9 | 104.6 |
Colac Shire Office Monthly Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mn. Max (°C) |
30.2 | 31.0 | 26.6 | 21.7 | 18.4 | 16.1 | 14.1 | 17.1 | 17.5 | 20.5 | 25.0 | 26.1 | 20.4 |
| Low Mn. Max (°C) |
22.8 | 23.2 | 20.7 | 17.5 | 12.8 | 12.1 | 11.5 | 12.2 | 13.4 | 15.8 | 17.5 | 18.6 | 17.6 |
| High Mn. Min (°C) |
14.4 | 15.1 | 13.2 | 10.3 | 8.3 | 6.3 | 5.6 | 6.0 | 7.8 | 8.6 | 10.3 | 11.1 | 8.8 |
| Low Mn. Min (°C) |
4.8 | 8.7 | 7.1 | 4.7 | 2.9 | 2.0 | 2.4 | 2.3 | 3.0 | 4.8 | 5.9 | 6.9 | 5.5 |
| High Rain (mm) |
163.0 | 167.2 | 125.4 | 154.4 | 167.5 | 166.0 | 175.3 | 202.8 | 137.4 | 204.8 | 142.1 | 145.2 | 1142.6 |
| Low Rain (mm) |
1.3 | 0.0 | 2.6 | 0.0 | 9.5 | 17.3 | 13.0 | 4.4 | 18.6 | 0.0 | 5.4 | 1.8 | 411.5 |
Colac Shire Office Annual Temperatures & Rainfall
Colac Shire Office Average Number of Days With Temperatures
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 40°C |
0.5 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.7 |
| ≥ 35°C |
3.1 | 2.5 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 1.3 | 7.3 |
| ≥ 30°C |
8.3 | 7.3 | 4.0 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 1.7 | 4.8 | 25.6 |
| ≤ 2°C |
0.5 | 0.2 | 0.4 | 2.0 | 3.4 | 7.1 | 8.6 | 6.0 | 4.4 | 2.8 | 0.9 | 0.8 | 36.9 |
| ≤ 0°C |
0.0 | 0.0 | 0.1 | 0.4 | 1.4 | 2.9 | 3.8 | 2.1 | 1.4 | 0.7 | 0.1 | 0.1 | 13.0 |
Colac Shire Office 'per Week' Values (14th/86th Percentiles)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max |
33.6 | 33.2 | 29.4 | 24.3 | 19.0 | 15.6 | 14.4 | 16.3 | 18.9 | 23.0 | 26.3 | 30.2 | 26.2 |
| Low Max |
20.0 | 20.0 | 18.3 | 15.6 | 12.8 | 11.4 | 10.6 | 11.5 | 12.8 | 14.4 | 15.6 | 17.3 | 12.8 |
| High Min |
15.1 | 15.5 | 14.4 | 11.7 | 9.7 | 7.8 | 6.9 | 7.7 | 8.9 | 10.6 | 11.7 | 13.3 | 12.2 |
| Low Min |
5.6 | 6.2 | 5.6 | 3.9 | 2.2 | 0.6 | 0.6 | 1.1 | 1.9 | 2.8 | 3.9 | 5.3 | 2.8 |
Colac Shire Office Data Availability
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years of Minima |
26 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 24.0 |
| Earliest Entry |
1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 |
| Latest Entry |
1983 | 1983 | 1983 | 1983 | 1982 | 1982 | 1982 | 1982 | 1982 | 1982 | 1982 | 1982 | 1983 |
| Years of Maxima |
26 | 26 | 26 | 26 | 24 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 24.0 |
| Earliest Entry |
1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 |
| Latest Entry |
1983 | 1983 | 1983 | 1983 | 1982 | 1982 | 1982 | 1982 | 1982 | 1982 | 1982 | 1982 | 1983 |
| Years of Rainfall |
119 | 119 | 120 | 116 | 104 | 102 | 104 | 105 | 108 | 113 | 114 | 116 | 113.0 |
| Earliest Entry |
1899 | 1898 | 1898 | 1898 | 1898 | 1898 | 1898 | 1898 | 1898 | 1898 | 1898 | 1898 | 1898 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2022 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2024 |
Station Details
COLAC (SHIRE OFFICE)
South West, Victoria
South West, Victoria
38.3427°S 143.5848°E
134m AMSL
Commenced 1898
Commenced 1898
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400km line of severe thunderstorms lashing southwest WA
10:42 AEST A line of severe thunderstorms is moving onshore towards the southwest of WA, which could produce heavy rainfall and large hail on Thursday morning.
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