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Somerset Dam Long-term Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) |
30.5 | 29.8 | 28.5 | 26.7 | 23.1 | 20.7 | 19.7 | 21.6 | 24.2 | 27.6 | 29.8 | 30.3 | 25.8 |
| Mean Min (°C) |
19.3 | 19.2 | 17.8 | 15.2 | 11.0 | 8.9 | 6.5 | 7.9 | 10.5 | 14.4 | 16.6 | 18.2 | 13.6 |
| Mean Rain (mm) |
130.9 | 146.5 | 111.8 | 68.7 | 67.4 | 48.9 | 45.4 | 32.5 | 37.5 | 84.2 | 85.4 | 127.3 | 987.4 |
| Median Rain (mm) |
118.9 | 111.4 | 80.5 | 46.9 | 51.3 | 34.7 | 31.9 | 21.9 | 31.7 | 67.1 | 77.8 | 112.0 | 989.0 |
| Mean Rain Days |
10.7 | 11.7 | 11.8 | 9.0 | 8.6 | 7.4 | 6.6 | 5.3 | 5.3 | 8.2 | 8.2 | 9.9 | 102.6 |
Somerset Dam Daily Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) |
40.0 | 39.7 | 38.6 | 33.3 | 29.4 | 27.5 | 30.0 | 28.3 | 33.1 | 40.8 | 42.2 | 39.4 | 42.2 |
| Low Max (°C) |
21.1 | 21.7 | 20.6 | 16.4 | 13.3 | 13.9 | 11.1 | 13.3 | 16.7 | 15.0 | 17.5 | 20.3 | 11.1 |
| High Min (°C) |
28.3 | 26.1 | 23.9 | 26.1 | 20.6 | 18.1 | 14.4 | 16.9 | 19.4 | 31.1 | 25.8 | 26.9 | 31.1 |
| Low Min (°C) |
9.3 | 11.9 | 11.1 | 6.7 | 0.1 | -1.1 | -1.1 | -1.4 | 2.5 | 3.3 | 7.8 | 10.0 | -1.4 |
| High Rain (mm) |
192.0 | 276.2 | 162.0 | 130.0 | 147.6 | 99.1 | 191.3 | 66.0 | 53.6 | 140.0 | 126.6 | 165.1 | 276.2 |
Somerset Dam Monthly Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mn. Max (°C) |
33.0 | 31.6 | 30.4 | 28.7 | 25.2 | 22.7 | 21.3 | 22.8 | 26.0 | 29.4 | 33.0 | 34.6 | 27.3 |
| Low Mn. Max (°C) |
28.4 | 28.2 | 26.2 | 25.2 | 21.4 | 19.4 | 18.6 | 20.3 | 22.4 | 24.3 | 27.8 | 28.3 | 24.9 |
| High Mn. Min (°C) |
21.5 | 20.3 | 19.1 | 17.1 | 13.5 | 12.8 | 9.9 | 10.1 | 11.9 | 15.6 | 18.8 | 19.4 | 14.6 |
| Low Mn. Min (°C) |
17.3 | 17.9 | 16.5 | 13.7 | 8.2 | 6.2 | 4.0 | 5.1 | 8.6 | 13.5 | 15.3 | 16.9 | 12.9 |
| High Rain (mm) |
580.4 | 670.1 | 366.2 | 504.8 | 347.5 | 320.5 | 366.6 | 109.2 | 142.3 | 334.8 | 281.2 | 540.5 | 1781.5 |
| Low Rain (mm) |
6.2 | 6.4 | 5.4 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 0.0 | 2.1 | 4.6 | 431.6 |
Somerset Dam Annual Temperatures & Rainfall
Somerset Dam Average Number of Days With Temperatures
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 40°C |
0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.4 | 0.0 | 0.6 |
| ≥ 35°C |
3.4 | 1.6 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.3 | 3.4 | 2.7 | 11.3 |
| ≥ 30°C |
16.6 | 12.8 | 8.8 | 3.2 | 0.0 | 0.0 | 0.1 | 0.0 | 1.4 | 7.2 | 13.6 | 16.2 | 71.8 |
| ≤ 2°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.5 | 3.3 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 5.5 |
| ≤ 0°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 1.4 |
Somerset Dam 'per Week' Values (14th/86th Percentiles)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max |
34.3 | 33.1 | 31.1 | 29.4 | 25.6 | 23.1 | 21.9 | 24.2 | 27.2 | 30.8 | 33.6 | 34.2 | 31.1 |
| Low Max |
26.1 | 26.7 | 25.6 | 23.9 | 20.6 | 18.3 | 17.2 | 18.9 | 21.4 | 23.3 | 25.3 | 26.4 | 20.6 |
| High Min |
21.7 | 21.1 | 20.0 | 17.8 | 15.3 | 12.8 | 10.7 | 11.5 | 13.9 | 17.2 | 19.7 | 20.6 | 19.4 |
| Low Min |
16.4 | 16.9 | 15.6 | 11.9 | 5.6 | 4.2 | 2.2 | 3.6 | 6.7 | 10.6 | 13.3 | 15.6 | 6.7 |
Somerset Dam Data Availability
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years of Minima |
10 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 6 | 8 | 10 | 11.0 |
| Earliest Entry |
1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 |
| Latest Entry |
1970 | 1970 | 1970 | 1970 | 1970 | 1970 | 1969 | 1969 | 1969 | 1969 | 1969 | 1969 | 1970 |
| Years of Maxima |
11 | 12 | 12 | 11 | 11 | 10 | 10 | 11 | 9 | 6 | 9 | 10 | 11.0 |
| Earliest Entry |
1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 | 1957 |
| Latest Entry |
1970 | 1970 | 1970 | 1970 | 1970 | 1970 | 1969 | 1969 | 1969 | 1969 | 1969 | 1969 | 1970 |
| Years of Rainfall |
87 | 87 | 87 | 85 | 84 | 85 | 85 | 87 | 86 | 87 | 86 | 88 | 86.0 |
| Earliest Entry |
1937 | 1937 | 1937 | 1937 | 1937 | 1937 | 1937 | 1937 | 1937 | 1937 | 1936 | 1936 | 1936 |
| Latest Entry |
2024 | 2024 | 2024 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2024 |
Station Details
SOMERSET DAM
Southeast Coast, Queensland
Southeast Coast, Queensland
27.1147°S 152.5550°E
113m AMSL
Commenced 1936
Commenced 1936
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Intense Rainfall: Over 100mm in just 3 days over NSW
14:40 AEST The advance of a trough across the north and center of the state spread clouds across the state and, together with humid onshore winds, intensified instability in eastern NSW, leading to intense rainfall.
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