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Swan Island Long-term Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) |
21.1 | 21.3 | 20.5 | 18.3 | 15.9 | 14.1 | 13.3 | 13.6 | 14.7 | 16.0 | 17.8 | 19.5 | 17.2 |
| Mean Min (°C) |
15.1 | 15.4 | 14.6 | 12.8 | 10.8 | 9.3 | 8.5 | 8.4 | 9.2 | 10.3 | 11.9 | 13.4 | 11.6 |
| Mean Rain (mm) |
43.2 | 40.2 | 54.1 | 45.7 | 55.4 | 57.1 | 61.0 | 54.8 | 49.9 | 49.1 | 57.8 | 46.2 | 604.9 |
| Median Rain (mm) |
27.0 | 41.2 | 28.8 | 38.1 | 33.6 | 61.8 | 56.5 | 51.8 | 47.2 | 50.8 | 57.3 | 25.6 | 619.9 |
| Mean Rain Days |
7.9 | 8.1 | 9.3 | 12.6 | 15.0 | 16.5 | 17.4 | 17.0 | 13.3 | 11.8 | 11.3 | 9.7 | 147.6 |
Swan Island Daily Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) |
31.9 | 30.3 | 29.7 | 24.5 | 21.6 | 18.0 | 17.6 | 18.1 | 21.4 | 23.0 | 29.7 | 28.4 | 31.9 |
| Low Max (°C) |
16.2 | 14.9 | 14.2 | 11.5 | 10.4 | 10.1 | 9.3 | 9.2 | 10.5 | 11.2 | 12.5 | 13.1 | 9.2 |
| High Min (°C) |
20.6 | 20.1 | 20.3 | 18.8 | 16.5 | 15.2 | 13.4 | 12.8 | 13.7 | 15.3 | 16.9 | 18.8 | 20.6 |
| Low Min (°C) |
8.6 | 8.7 | 6.8 | 6.1 | 4.3 | 2.8 | 3.1 | 2.2 | 3.1 | 3.8 | 4.6 | 6.7 | 2.2 |
| High Rain (mm) |
160.8 | 73.2 | 121.2 | 53.6 | 51.2 | 40.2 | 56.2 | 41.0 | 29.8 | 34.8 | 80.4 | 62.4 | 160.8 |
Swan Island Monthly Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mn. Max (°C) |
22.7 | 22.7 | 22.1 | 19.6 | 17.1 | 15.2 | 14.0 | 14.9 | 15.8 | 17.4 | 19.4 | 21.1 | 17.7 |
| Low Mn. Max (°C) |
19.3 | 19.8 | 19.2 | 16.4 | 14.4 | 13.0 | 12.5 | 12.7 | 13.3 | 14.5 | 16.7 | 18.2 | 16.5 |
| High Mn. Min (°C) |
16.5 | 16.8 | 16.0 | 13.9 | 12.4 | 10.3 | 9.9 | 10.1 | 10.5 | 11.2 | 13.2 | 14.7 | 12.2 |
| Low Mn. Min (°C) |
13.5 | 14.2 | 13.1 | 10.4 | 9.0 | 7.6 | 7.4 | 7.1 | 7.8 | 8.9 | 10.7 | 11.9 | 10.8 |
| High Rain (mm) |
182.0 | 130.4 | 183.4 | 100.4 | 176.8 | 135.6 | 109.2 | 147.6 | 100.0 | 110.2 | 145.2 | 118.2 | 966.8 |
| Low Rain (mm) |
0.8 | 5.0 | 10.0 | 13.6 | 13.0 | 16.2 | 0.0 | 0.0 | 0.0 | 5.4 | 5.8 | 5.2 | 306.8 |
Swan Island Annual Temperatures & Rainfall
Swan Island 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 |
0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 |
| ≤ 2°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 |
| ≤ 0°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 |
Swan Island 'per Week' Values (14th/86th Percentiles)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max |
23.1 | 22.9 | 22.2 | 20.1 | 17.6 | 15.7 | 14.3 | 14.5 | 15.8 | 17.7 | 19.5 | 21.2 | 20.7 |
| Low Max |
18.5 | 18.8 | 18.3 | 16.2 | 13.9 | 12.5 | 11.9 | 12.3 | 13.0 | 14.1 | 15.4 | 17.3 | 13.3 |
| High Min |
16.8 | 17.4 | 16.5 | 15.1 | 13.7 | 12.0 | 10.7 | 10.7 | 11.0 | 12.3 | 13.8 | 15.4 | 15.2 |
| Low Min |
12.3 | 13.0 | 11.7 | 10.2 | 8.1 | 6.6 | 6.1 | 5.8 | 6.7 | 7.7 | 9.7 | 10.7 | 7.8 |
Swan Island Data Availability
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years of Minima |
23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 22.0 |
| Earliest Entry |
2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2001 | 2001 | 2001 | 2001 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2023 | 2023 | 2024 |
| Years of Maxima |
23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 23 | 23 | 22.0 |
| Earliest Entry |
2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2001 | 2001 | 2001 | 2001 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2023 | 2023 | 2024 |
| Years of Rainfall |
22 | 22 | 23 | 23 | 23 | 23 | 23 | 22 | 21 | 21 | 22 | 22 | 22.0 |
| Earliest Entry |
2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2001 | 2001 | 2001 | 2001 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2023 | 2023 | 2024 |
Station Details
SWAN ISLAND
Northeast, Tasmania
Northeast, Tasmania
40.7292°S 148.1250°E
15m AMSL
Commenced 2001
Commenced 2001
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