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Risdon Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
22.4 22.1 20.6 17.8 14.4 12.3 11.7 12.8 14.9 17.1 18.4 20.5 17.0
Mean Min (°C)
12.1 12.3 11.3 9.4 6.9 5.4 4.5 5.0 6.6 8.0 9.6 11.1 8.5
Mean Rain (mm)
43.3 45.1 45.4 52.3 48.7 52.2 47.9 51.3 44.0 60.3 54.6 56.4 601.2
Median Rain (mm)
31.6 31.6 36.4 44.4 41.0 39.2 42.1 39.6 37.7 47.1 45.1 47.6 579.9
Mean Rain Days
9.4 8.9 9.9 12.1 14.2 14.8 15.9 16.0 14.4 15.6 14.1 12.2 156.2

Risdon Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
40.2 37.5 35.3 30.6 24.7 20.3 20.0 24.0 28.0 30.6 35.3 36.7 40.2
Low Max (°C)
13.9 10.8 11.7 9.2 6.1 4.4 5.5 5.8 6.7 5.3 9.6 11.1 4.4
High Min (°C)
25.6 23.5 20.5 18.9 14.0 13.5 14.0 11.5 19.0 17.5 18.5 22.0 25.6
Low Min (°C)
-1.1 0.0 2.8 -1.1 -0.6 -1.1 -5.0 -0.8 -3.3 -2.8 -6.7 -3.9 -6.7
High Rain (mm)
54.9 58.4 68.6 118.6 52.3 119.4 69.9 63.0 75.7 55.9 69.1 65.0 119.4

Risdon Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
24.8 24.2 23.9 19.4 16.9 14.2 13.0 15.1 17.4 20.5 20.9 23.4 17.7
Low Mn. Max (°C)
19.8 18.9 18.6 15.7 12.6 10.6 10.4 11.1 13.3 14.3 16.7 17.6 16.1
High Mn. Min (°C)
14.4 13.9 13.8 11.5 9.3 7.3 6.0 6.3 10.0 10.4 12.2 14.0 9.3
Low Mn. Min (°C)
10.0 10.4 9.7 7.7 5.0 3.8 2.8 3.4 5.4 5.9 8.2 9.2 7.7
High Rain (mm)
112.0 150.2 189.1 264.9 179.2 205.6 155.6 213.0 117.9 159.2 151.7 149.6 883.4
Low Rain (mm)
5.4 5.9 9.3 0.8 4.0 10.5 7.6 11.3 9.4 18.7 11.7 3.2 365.3

Risdon Annual Temperatures & Rainfall

RISDON

Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall

Risdon 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
0.8 0.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.3
≥ 30°C
2.8 2.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 1.2 7.0
≤ 2°C
0.1 0.1 0.0 0.4 1.2 3.2 5.5 3.3 0.9 0.7 0.1 0.1 13.6
≤ 0°C
0.1 0.1 0.0 0.2 0.4 0.5 1.3 0.6 0.2 0.3 0.1 0.1 3.3

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
27.6 26.7 25.5 21.4 17.5 15.3 14.2 15.6 18.0 21.7 22.8 25.0 22.5
Low Max
17.8 17.8 16.5 14.4 11.5 9.4 8.9 10.0 11.5 12.8 14.0 16.1 11.5
High Min
15.0 15.0 14.0 12.5 10.0 8.5 7.2 7.8 9.0 10.9 12.2 14.2 12.5
Low Min
9.4 9.4 8.1 6.5 4.0 2.5 1.7 2.5 3.9 5.0 6.7 8.3 4.1

Risdon Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
20 17 18 20 18 19 20 19 20 20 20 19 19.0
Earliest Entry
1957 1957 1957 1957 1957 1957 1957 1957 1957 1957 1957 1957 1957
Latest Entry
1978 1978 1978 1978 1978 1978 1978 1978 1978 1977 1977 1977 1978
Years of Maxima
21 20 20 20 20 21 22 22 22 21 21 20 20.7
Earliest Entry
1957 1957 1957 1957 1957 1957 1957 1957 1957 1957 1957 1957 1957
Latest Entry
1978 1978 1978 1978 1978 1978 1978 1978 1978 1977 1977 1977 1978
Years of Rainfall
55 55 56 55 56 56 56 56 56 55 55 55 55.5
Earliest Entry
1924 1924 1923 1923 1923 1923 1923 1923 1923 1923 1923 1923 1923
Latest Entry
1978 1978 1978 1978 1978 1978 1978 1978 1978 1977 1977 1977 1978

Station Details

RISDON
Lower Derwent, Tasmania
42.8333°S 147.3167°E 32m AMSL
Commenced 1923 / Closed 1978

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