Rochester Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
30.9 30.7 26.8 21.9 16.9 14.1 13.4 14.8 17.4 21.7 24.8 28.4 21.8
Mean Min (°C)
14.9 15.8 13.0 9.7 6.5 3.6 3.5 4.5 5.7 8.2 10.1 12.8 9.0
Mean Rain (mm)
30.5 31.8 31.7 30.9 42.6 43.3 45.4 43.8 41.6 42.1 34.0 31.2 448.3
Median Rain (mm)
21.6 17.5 18.6 25.4 39.6 37.7 44.1 41.7 36.2 32.5 26.8 21.7 443.4
Mean Rain Days
4.0 4.1 4.4 5.8 8.6 10.0 11.9 11.5 9.4 8.1 6.2 5.1 87.1

Rochester Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
45.0 42.9 40.0 31.7 26.4 20.1 23.7 23.3 29.4 36.7 39.0 40.4 45.0
Low Max (°C)
18.6 18.9 12.9 13.5 9.0 6.4 6.2 7.8 7.8 10.3 13.3 13.9 6.2
High Min (°C)
24.7 27.2 21.1 17.3 15.0 11.0 12.4 11.8 16.0 19.0 20.6 24.4 27.2
Low Min (°C)
5.6 7.2 4.0 1.0 -0.8 -2.8 -2.5 -2.5 -1.3 -0.6 2.1 4.6 -2.8
High Rain (mm)
64.3 97.5 82.6 53.1 64.8 56.4 45.5 43.2 68.1 50.0 78.0 57.9 97.5

Rochester Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
33.3 33.0 29.0 24.0 19.1 16.5 15.7 15.9 20.6 24.5 26.5 30.9 22.8
Low Mn. Max (°C)
28.8 29.3 24.3 19.2 14.4 12.4 11.8 13.9 14.8 19.6 23.1 26.7 21.1
High Mn. Min (°C)
17.0 17.2 16.6 11.9 8.9 5.1 6.0 5.8 7.7 9.8 11.3 14.6 10.0
Low Mn. Min (°C)
11.8 13.9 10.5 6.9 4.9 1.7 2.2 3.7 4.3 6.8 9.2 11.1 8.3
High Rain (mm)
132.6 193.6 196.7 125.3 131.5 107.5 124.6 117.8 100.2 166.8 115.8 204.6 983.1
Low Rain (mm)
0.0 0.0 0.0 0.0 0.0 2.1 3.2 0.5 2.8 0.0 0.0 0.0 170.6

Rochester Annual Temperatures & Rainfall

Rochester annual climate

Rochester Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.8 0.6 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.7
≥ 35°C
7.1 5.5 1.4 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.7 3.6 17.9
≥ 30°C
18.4 16.5 8.3 0.6 0.0 0.0 0.0 0.0 0.0 0.9 4.9 12.8 60.7
≤ 2°C
0.0 0.0 0.0 0.2 2.6 9.2 10.5 6.6 3.5 1.0 0.0 0.0 32.5
≤ 0°C
0.0 0.0 0.0 0.0 0.5 3.4 3.6 1.8 0.7 0.2 0.0 0.0 9.9

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
36.1 35.8 31.7 26.1 20.4 16.7 15.6 17.5 21.1 26.7 30.4 34.4 31.0
Low Max
25.2 25.3 21.6 17.3 13.9 11.7 11.1 12.2 13.7 17.2 19.8 22.2 13.8
High Min
19.7 20.0 17.2 13.3 10.0 6.7 6.6 7.6 8.8 12.8 14.3 17.4 15.5
Low Min
10.5 11.6 8.5 6.0 2.9 0.4 0.4 1.4 2.2 3.9 5.8 8.7 3.0

Rochester Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
11 11 11 11 11 11 11 10 10 10 10 10 10.6
Earliest Entry
1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965
Latest Entry
1975 1975 1975 1975 1975 1975 1975 1974 1974 1974 1974 1974 1975
Years of Maxima
11 11 11 11 11 11 11 10 10 10 10 10 10.6
Earliest Entry
1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965
Latest Entry
1975 1975 1975 1975 1975 1975 1975 1974 1974 1974 1974 1974 1975
Years of Rainfall
110 111 111 112 110 107 108 110 109 110 110 110 109.8
Earliest Entry
1907 1904 1904 1906 1907 1907 1906 1906 1907 1906 1906 1906 1904
Latest Entry
2017 2017 2017 2017 2017 2016 2016 2016 2016 2016 2016 2016 2017

Station Details

ROCHESTER
Northern Country, Victoria
36.3607°S 144.7110°E 114m AMSL
Commenced 1904

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IOD reaches new (dry) heights

13:48 AEDT   The strongest positive Indian Ocean Dipole of the last two decades is limiting rainfall in Australia this spring.

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