Merriwa Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
31.4 30.1 27.6 23.6 19.7 16.3 16.2 18.1 21.8 25.3 27.9 29.8 24.0
Mean Min (°C)
16.8 15.7 13.8 9.4 5.2 3.8 2.3 2.8 5.2 8.6 12.2 14.5 9.1
Mean Rain (mm)
78.3 58.0 58.4 33.9 37.0 38.3 36.3 33.0 38.6 50.8 60.9 72.9 593.5
Median Rain (mm)
58.0 51.5 33.2 17.6 32.1 25.0 30.8 21.4 33.5 47.2 55.8 51.9 590.6
Mean Rain Days
7.9 6.4 6.4 4.9 6.4 7.3 7.2 6.4 6.5 6.8 7.8 7.5 81.2

Merriwa Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
43.8 45.4 39.8 33.2 28.8 23.8 24.7 28.0 34.3 37.4 43.0 43.7 45.4
Low Max (°C)
19.1 16.7 17.4 14.4 12.1 7.4 9.3 9.4 12.0 11.1 14.6 16.9 7.4
High Min (°C)
27.1 29.2 22.2 17.8 16.0 12.7 13.7 13.7 18.8 23.3 22.9 24.6 29.2
Low Min (°C)
5.4 6.9 3.0 -2.9 -3.8 -5.8 -6.1 -4.5 -3.7 -0.2 2.5 4.2 -6.1
High Rain (mm)
85.0 110.4 90.6 73.6 45.2 117.0 54.4 38.0 44.4 63.4 53.6 92.4 117.0

Merriwa Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
35.4 35.1 30.7 27.1 20.9 17.3 18.1 20.9 25.7 28.1 32.4 34.2 26.1
Low Mn. Max (°C)
28.3 26.3 24.6 21.9 18.2 15.0 14.3 15.6 18.8 21.8 23.3 24.5 22.0
High Mn. Min (°C)
20.5 17.5 15.5 11.3 7.6 6.5 4.2 5.4 6.7 10.6 14.9 16.5 10.0
Low Mn. Min (°C)
14.7 14.2 11.4 7.0 2.8 2.5 -0.3 1.4 3.8 6.5 8.7 10.1 8.3
High Rain (mm)
208.6 240.0 208.6 161.4 126.0 284.2 139.8 109.8 121.6 155.0 224.2 219.2 947.2
Low Rain (mm)
10.2 2.0 0.0 0.0 0.0 0.8 1.3 0.0 0.0 1.8 0.0 2.5 291.4

Merriwa Annual Temperatures & Rainfall

Merriwa annual climate

Merriwa Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
1.1 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.8 3.0
≥ 35°C
8.5 4.2 1.4 0.0 0.0 0.0 0.0 0.0 0.0 0.5 2.7 5.4 23.2
≥ 30°C
18.6 13.8 8.8 1.1 0.0 0.0 0.0 0.0 1.2 5.6 9.6 14.9 73.7
≤ 2°C
0.0 0.0 0.0 0.6 6.2 9.9 14.9 13.9 6.9 1.5 0.0 0.0 54.9
≤ 0°C
0.0 0.0 0.0 0.1 2.5 5.8 9.6 7.3 2.1 0.1 0.0 0.0 28.0

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
36.2 33.1 30.7 26.8 22.4 18.5 18.1 22.4 25.8 29.8 33.6 33.8 30.5
Low Max
25.4 24.6 23.6 20.1 16.3 14.2 13.3 14.2 16.9 19.4 22.0 23.1 16.3
High Min
19.4 18.9 16.6 12.9 8.7 9.7 6.5 6.9 9.5 12.5 16.4 17.6 16.4
Low Min
13.2 11.9 9.6 4.9 0.5 -0.6 -1.8 -1.2 1.3 3.4 8.8 10.2 2.0

Merriwa Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
17 17 16 16 16 16 16 17 17 17 17 17 16.0
Earliest Entry
2008 2008 2008 2008 2008 2008 2008 2007 2007 2007 2007 2007 2007
Latest Entry
2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Maxima
17 17 16 16 16 16 16 17 17 17 17 17 16.0
Earliest Entry
2008 2008 2008 2008 2008 2008 2008 2007 2007 2007 2007 2007 2007
Latest Entry
2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Rainfall
55 54 54 54 53 55 55 55 54 54 55 54 54.0
Earliest Entry
1970 1970 1970 1970 1970 1969 1969 1969 1970 1970 1969 1970 1969
Latest Entry
2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2023 2024

Station Details

MERRIWA (ROSCOMMON)
Hunter, New South Wales/ACT
32.1852°S 150.1737°E 375m AMSL
Commenced 1969

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A very wet weekend for southeast Qld, northeast NSW

11:48 AEST A prolonged rainfall event is set to bring large totals to parts of NSW and Qld from Saturday, with possible heavy falls and flooding.  A low-pressure system in the Coral Sea, a deepening coastal trough and persistent easterlies will bring moisture-laden air into southeast Qld and northeast NSW will bring days of rainfall to the region.  While there is not a drop of rain on the radar over southeast Qld and Northeast NSW on Friday morning, the mass of cloud associated with a low in the Coral Sea will enhance rainfall over the weekend.

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