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Shannon Hec Long-term Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) |
18.0 | 18.2 | 15.4 | 12.0 | 8.6 | 6.5 | 5.4 | 6.5 | 8.6 | 11.5 | 13.6 | 15.6 | 11.6 |
| Mean Min (°C) |
5.9 | 6.1 | 4.7 | 2.8 | 1.1 | -0.5 | -1.3 | -0.9 | 0.1 | 1.7 | 3.1 | 4.6 | 2.2 |
| Mean Rain (mm) |
45.5 | 50.7 | 53.5 | 76.6 | 72.5 | 74.2 | 82.6 | 90.2 | 78.3 | 75.3 | 70.1 | 66.8 | 835.7 |
| Median Rain (mm) |
37.4 | 40.5 | 44.1 | 63.5 | 61.8 | 63.1 | 79.8 | 83.3 | 66.2 | 66.0 | 65.6 | 65.1 | 783.3 |
| Mean Rain Days |
10.4 | 9.9 | 12.1 | 15.1 | 18.3 | 18.3 | 19.1 | 18.9 | 17.4 | 16.3 | 14.9 | 13.3 | 180.2 |
Shannon Hec Daily Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) |
33.4 | 30.7 | 29.9 | 23.3 | 18.7 | 15.6 | 11.5 | 16.0 | 22.8 | 24.0 | 27.8 | 29.7 | 33.4 |
| Low Max (°C) |
6.1 | 4.3 | 3.9 | 1.7 | -0.5 | -1.5 | -1.7 | -1.1 | -1.1 | 0.0 | 2.2 | 4.2 | -1.7 |
| High Min (°C) |
20.0 | 19.0 | 15.0 | 15.0 | 9.5 | 8.5 | 6.0 | 7.0 | 12.2 | 15.0 | 15.0 | 17.8 | 20.0 |
| Low Min (°C) |
-3.0 | -3.8 | -3.9 | -7.0 | -8.3 | -13.0 | -10.2 | -11.0 | -10.7 | -8.5 | -5.2 | -3.4 | -13.0 |
| High Rain (mm) |
48.0 | 86.4 | 90.9 | 111.8 | 55.9 | 37.8 | 38.4 | 45.2 | 48.8 | 37.6 | 43.2 | 54.8 | 111.8 |
Shannon Hec Monthly Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mn. Max (°C) |
21.8 | 20.4 | 17.6 | 14.1 | 10.4 | 8.9 | 6.5 | 10.1 | 10.3 | 15.3 | 16.4 | 19.7 | 12.8 |
| Low Mn. Max (°C) |
14.8 | 14.8 | 13.7 | 9.8 | 6.5 | 4.7 | 4.0 | 5.0 | 5.6 | 8.4 | 10.5 | 11.9 | 10.3 |
| High Mn. Min (°C) |
9.2 | 8.8 | 5.8 | 4.4 | 2.9 | 1.4 | 0.0 | 0.6 | 1.4 | 4.4 | 4.9 | 6.9 | 3.1 |
| Low Mn. Min (°C) |
4.0 | 4.2 | 3.4 | 0.5 | -0.5 | -2.0 | -3.4 | -2.2 | -2.2 | 0.3 | 1.7 | 3.0 | 1.6 |
| High Rain (mm) |
113.9 | 175.1 | 182.1 | 328.7 | 235.9 | 236.3 | 156.3 | 273.5 | 206.2 | 145.0 | 167.4 | 159.7 | 1231.3 |
| Low Rain (mm) |
0.8 | 3.3 | 13.5 | 10.5 | 6.4 | 12.2 | 17.3 | 17.4 | 25.8 | 17.4 | 18.0 | 7.9 | 515.8 |
Shannon Hec Annual Temperatures & Rainfall
Shannon Hec Average Number of Days With Temperatures
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 40°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| ≥ 35°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| ≥ 30°C |
0.4 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 |
| ≤ 2°C |
4.5 | 4.0 | 7.1 | 12.6 | 18.5 | 21.4 | 25.4 | 24.6 | 21.1 | 16.5 | 11.6 | 7.5 | 167.4 |
| ≤ 0°C |
1.4 | 1.3 | 2.6 | 6.5 | 12.1 | 15.8 | 19.8 | 18.5 | 14.6 | 10.5 | 5.7 | 2.3 | 106.5 |
Shannon Hec 'per Week' Values (14th/86th Percentiles)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max |
23.5 | 23.0 | 20.0 | 16.1 | 12.0 | 9.4 | 7.8 | 9.3 | 12.0 | 16.1 | 18.4 | 21.4 | 18.5 |
| Low Max |
12.2 | 13.1 | 10.5 | 7.8 | 5.0 | 3.3 | 2.8 | 3.5 | 5.0 | 6.9 | 8.4 | 10.2 | 5.6 |
| High Min |
10.0 | 10.6 | 8.9 | 7.1 | 4.8 | 2.8 | 1.7 | 2.0 | 3.0 | 5.3 | 6.7 | 8.5 | 6.8 |
| Low Min |
1.8 | 1.7 | 1.0 | -0.6 | -2.2 | -3.6 | -4.4 | -3.9 | -2.8 | -1.7 | -0.6 | 1.0 | -2.0 |
Shannon Hec Data Availability
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years of Minima |
25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25.3 |
| Earliest Entry |
1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 |
| Latest Entry |
1985 | 1985 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1985 |
| Years of Maxima |
26 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25.2 |
| Earliest Entry |
1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 |
| Latest Entry |
1985 | 1985 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1985 |
| Years of Rainfall |
57 | 57 | 56 | 55 | 56 | 56 | 56 | 56 | 57 | 56 | 56 | 57 | 56.1 |
| Earliest Entry |
1928 | 1928 | 1928 | 1928 | 1928 | 1927 | 1927 | 1927 | 1927 | 1927 | 1927 | 1927 | 1927 |
| Latest Entry |
1985 | 1985 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1984 | 1985 |
Station Details
SHANNON HEC
Central, Tasmania
Central, Tasmania
42.0500°S 146.7500°E
939m AMSL
Commenced 1927 / Closed 1985
Commenced 1927 / Closed 1985
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We need to talk about drainage
11:54 AEST By now, you would have likely already seen the flooding that occurred in Dubai earlier this week.
- 11:48 AEST A very wet weekend for southeast Qld, northeast NSW
- 10:07 AEST Southerly surges across the southeast
- 13:20 AEST Generation gone with the wind
- 11:29 AEST Devilishly dry in Tasmania
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