Forthside Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
20.6 21.1 19.8 17.1 14.4 12.2 11.6 12.1 13.5 15.4 17.2 18.9 16.1
Mean Min (°C)
11.0 11.6 10.4 8.3 6.4 4.2 3.6 4.1 5.0 6.3 8.2 9.6 7.4
Mean Rain (mm)
51.0 43.8 55.3 74.3 82.5 98.7 121.7 112.6 93.6 82.5 68.7 66.4 963.7
Median Rain (mm)
41.0 35.8 48.2 59.4 75.5 86.0 118.3 105.9 91.9 72.6 69.2 51.2 944.2
Mean Rain Days
8.2 7.4 9.2 11.2 13.5 14.8 17.7 16.9 14.0 12.8 10.8 9.9 146.4

Forthside Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
30.2 30.8 29.0 24.0 19.9 18.2 18.8 16.9 22.4 24.1 28.1 28.6 30.8
Low Max (°C)
12.9 14.1 10.7 10.2 7.0 4.1 6.4 7.2 7.3 9.1 10.6 12.5 4.1
High Min (°C)
19.5 20.1 19.5 18.1 15.4 13.0 10.9 11.4 12.5 14.0 16.7 17.1 20.1
Low Min (°C)
0.0 0.9 1.2 -2.3 -2.6 -2.6 -3.2 -2.9 -2.6 -2.8 -0.6 0.2 -3.2
High Rain (mm)
107.6 91.8 85.0 124.4 90.0 132.0 82.2 79.0 77.4 106.0 74.0 75.4 132.0

Forthside Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
22.8 22.7 22.2 18.8 15.3 13.6 12.8 13.5 15.3 16.3 18.6 20.5 17.0
Low Mn. Max (°C)
18.5 19.4 17.8 15.0 12.9 11.1 10.6 11.2 11.9 14.2 15.6 17.5 15.5
High Mn. Min (°C)
13.5 13.8 13.0 10.5 9.3 6.4 5.6 6.0 7.4 7.2 9.7 11.1 8.6
Low Mn. Min (°C)
8.7 9.7 8.5 6.4 4.5 2.7 1.9 2.9 3.1 5.3 6.2 7.7 6.4
High Rain (mm)
188.2 185.4 204.5 302.2 180.6 263.8 295.9 239.0 204.8 218.6 160.0 190.9 1379.1
Low Rain (mm)
4.6 0.0 1.3 12.0 10.2 27.0 31.2 18.9 13.6 9.4 13.8 5.4 457.8

Forthside Annual Temperatures & Rainfall

Forthside annual climate

Forthside 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 0.1
≤ 2°C
0.0 0.0 0.1 1.1 2.8 8.6 10.2 7.8 5.4 2.3 0.5 0.1 38.5
≤ 0°C
0.0 0.0 0.0 0.2 0.7 3.0 3.5 2.2 0.9 0.2 0.0 0.0 10.7

Forthside 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
23.3 23.9 22.3 19.7 16.4 14.1 13.1 13.9 15.5 17.7 19.8 21.6 20.7
Low Max
17.9 18.5 17.2 14.6 12.4 10.3 9.9 10.5 11.7 13.2 14.9 16.4 11.8
High Min
14.2 15.1 14.3 12.0 10.2 8.0 7.2 7.3 8.4 9.5 11.5 12.5 12.0
Low Min
7.8 8.2 6.7 4.6 2.8 0.5 0.4 0.9 1.6 3.1 4.8 6.4 2.7

Forthside Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
31 30 30 29 28 29 30 30 30 30 30 30 30.0
Earliest Entry
1966 1966 1966 1966 1966 1966 1966 1966 1966 1966 1966 1966 1966
Latest Entry
1996 1996 1995 1995 1995 1995 1995 1995 1995 1995 1995 1995 1996
Years of Maxima
31 30 29 27 29 30 29 30 30 30 30 30 30.0
Earliest Entry
1966 1966 1966 1966 1966 1966 1966 1966 1966 1966 1966 1966 1966
Latest Entry
1996 1996 1995 1995 1995 1995 1995 1995 1995 1995 1995 1995 1996
Years of Rainfall
51 51 48 41 45 43 43 42 47 48 46 45 46.0
Earliest Entry
1966 1966 1966 1966 1966 1966 1966 1966 1966 1966 1966 1966 1966
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024

Station Details

FORTHSIDE RESEARCH STATION
Northwest Coast, Tasmania
41.2039°S 146.2650°E 127m AMSL
Commenced 1966

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A quick look at our water storages

12:14 AEST Given the largely clear skies across the country today, it’s a good opportunity to take a look at the water storages of Australia’s major cities.  While rainfall is obviously a major contributor to the level of major dams, it is not the only factor.

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