Hume Reservoir Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
31.2 30.7 27.3 22.1 16.9 13.3 12.5 14.3 17.4 21.2 25.2 28.6 21.7
Mean Min (°C)
17.2 17.2 14.3 10.4 7.4 5.2 4.4 5.2 6.9 9.4 12.2 14.7 10.3
Mean Rain (mm)
50.6 41.8 47.6 52.0 58.5 67.6 75.7 75.6 61.2 67.6 55.4 49.4 703.4
Median Rain (mm)
25.4 33.0 33.1 36.4 52.0 64.7 70.6 76.8 57.3 63.6 44.5 37.1 688.9
Mean Rain Days
5.7 5.3 5.9 7.3 11.3 14.7 16.8 15.0 11.4 10.2 8.2 6.7 118.3

Hume Reservoir Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
45.5 44.9 39.2 34.8 28.2 21.6 21.3 24.3 30.7 35.2 40.5 42.1 45.5
Low Max (°C)
14.8 12.0 14.5 10.6 6.0 6.2 4.4 6.1 8.3 10.0 10.9 13.4 4.4
High Min (°C)
28.9 28.2 26.8 20.6 17.2 13.5 15.0 13.0 16.5 20.0 24.1 28.4 28.9
Low Min (°C)
6.8 6.7 3.6 1.1 -1.7 -2.7 -2.8 -2.3 -1.8 1.2 2.8 4.4 -2.8
High Rain (mm)
134.2 124.0 92.6 83.2 57.6 49.4 53.8 83.2 53.8 66.4 62.2 80.0 134.2

Hume Reservoir Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
36.6 34.4 30.4 26.4 19.0 15.8 14.0 17.1 21.2 26.8 30.0 32.3 23.5
Low Mn. Max (°C)
27.3 26.6 24.1 19.3 13.7 11.3 10.5 12.4 14.4 17.9 20.9 25.0 20.1
High Mn. Min (°C)
22.4 20.3 17.2 13.6 10.6 9.0 6.9 6.7 9.0 13.0 16.4 17.8 11.4
Low Mn. Min (°C)
13.0 13.9 11.2 6.8 5.0 2.4 1.9 3.1 4.5 7.5 9.7 11.2 9.1
High Rain (mm)
317.8 240.8 241.8 185.8 161.4 201.4 191.8 174.7 135.2 214.7 183.4 197.3 1217.9
Low Rain (mm)
0.5 0.0 0.3 0.0 0.0 7.2 17.0 4.8 5.4 2.6 0.0 0.0 270.2

Hume Reservoir Annual Temperatures & Rainfall

Hume Reservoir annual climate

Hume Reservoir Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
1.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.7
≥ 35°C
6.6 4.2 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 2.7 15.4
≥ 30°C
19.1 16.4 8.2 0.4 0.0 0.0 0.0 0.0 0.0 0.7 4.8 12.4 61.7
≤ 2°C
0.0 0.0 0.0 0.1 1.7 5.1 6.7 4.6 2.0 0.3 0.0 0.0 20.4
≤ 0°C
0.0 0.0 0.0 0.0 0.4 1.3 1.9 1.0 0.2 0.0 0.0 0.0 4.8

Hume Reservoir 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
35.8 35.4 31.6 26.2 20.4 15.8 14.7 17.1 20.6 25.2 30.2 33.5 30.7
Low Max
25.7 26.0 22.3 17.8 13.5 10.7 9.9 11.3 13.7 16.7 19.8 22.8 13.0
High Min
21.3 21.0 18.3 14.6 11.3 8.3 7.4 8.1 10.3 13.2 16.5 18.8 17.1
Low Min
12.4 13.1 9.7 6.2 3.4 1.7 1.1 2.0 3.2 5.3 7.6 10.2 4.1

Hume Reservoir Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
60 60 60 59 59 59 59 59 59 59 59 58 59.0
Earliest Entry
1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Maxima
60 58 58 57 58 58 58 59 58 59 59 59 58.0
Earliest Entry
1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965 1965
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Rainfall
103 103 103 102 102 102 102 102 102 102 102 102 102.0
Earliest Entry
1922 1922 1922 1922 1922 1922 1922 1922 1922 1922 1922 1922 1922
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024

Station Details

HUME RESERVOIR
Riverina, New South Wales/ACT
36.1039°S 147.0329°E 184m AMSL
Commenced 1922

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Rain arrives in Perth after driest seven months on record

20:16 AEST Perth just registered its driest October-to-April period on record despite a welcome burst of rain on Tuesday.  Summer and the surrounding months are typically the driest time of year in Perth as cold fronts shift further south and rain-shielding high pressure systems become the dominant synoptic feature over southwestern Australia.

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