Storage Inflow Data

Inflow ML: Inflow volume that storage has received in Mega Litres (ML)

POE: The probability of exceedance describes the likelihood of a specific  volume being exceeded in the given time period. E.g. 90% POE means that 90 out of 100 times we would expect higher inflow volumes. A 50% POE is equal to a median average.

% Average: Mean Average - The value obtained by dividing the sum of all inflow volumes by the number of years data is available. Therefore a 50% mean average does not equal a 50% POE.

The inflow statistics are based on historical flow records that have been adjusted to match climate conditions observed since 1975.

April 2025 Inflows 

Murray, Goulburn & Ovens System Storages

Table of inflows for April 2025 for the Murray (Dartmouth and Hume), Goulburn (Eildon and Goulburn Weir) & Ovens (Buffalo and William Hovell) Storages.
Monthly Inflow Murray System Goulburn System Ovens System
Dartmouth Dam Hume Dam Lake Eildon Goulburn Weir Lake Buffalo Lake William Hovell
Inflow (ML) 9,700 3,700 7,989 22,426 1,875 959
POE 68%  New min 85% 52% 64% 70%
% of Average 45%  5%  32% 72% 30% 29%

 

Broken, Loddon & Campaspe System Storages

Table of inflows for April 2025 for the Broken (Nillahcootie), Loddon (Cairn Curran, Tullaroop and Laanecoorie) & Campaspe (Eppalock) Storages.
Monthly Inflow Broken System Loddon System Campaspe System
Lake Nillahcootie Cairn Curran Reservoir Tullaroop Reservoir Laanecoorie Reservoir Lake Eppalock
Inflow (ML) 0 0 0 0 0
POE Min Min Min Min Min
% of Average 0% 0% 0% 0% 0%

 

Year to Date Inflows: July 2024 to April 2025

Murray, Goulburn & Ovens System Storages

Table of inflows - Year to date - for the Murray (Dartmouth and Hume), Goulburn (Eildon and Goulburn Weir) & Ovens (Buffalo and William Hovell) Storages.
Water year 2024/2025: July 2024 to March 2025 Murray System Goulburn System Ovens System
Dartmouth Dam Hume Dam Lake Eildon Goulburn Weir Lake Buffalo Lake William Hovell
Inflow (ML) 446,676 633,451 484,673 414,876 147,884 80,335
POE 75%  93% 90% 87% 82% 83%
% of Average 65%  30% 44% 43% 45% 51%

 

Broken, Loddon & Campaspe System Storages

Table of inflows -Year to date - for the Broken (Nillahcootie), Loddon (Cairn Curran, Tullaroop and Laanecoorie) & Campaspe (Eppalock) Storages.
Water year 2024/2025: July 2024 to March 2025 Broken System Loddon System Campaspe System
Lake Nillahcootie Cairn Curran Reservoir Tullaroop Reservoir Laanecoorie Reservoir Lake Eppalock
Inflow (ML) 7,107 4,868 2,873 1,415 14,533
POE 90%  95% 93% 92% 89%
% of Average 15%  6% 7% 3% 12%

 

Inflow data for 2024/2025 against different climate scenarios

Climate Scenarios

The scenarios for different inflow conditions were produced using the following terminology: 

  • Wet Scenario : Inflow volumes that are greater in 10 years out of 100 (10% POE)
  • Average Scenario : Inflow volumes that are greater in 50 years out of 100 (50% POE and not average)
  • Dry Scenario : Inflow volumes that are greater in 90 years out of 100 (90% POE)
  • Extreme Dry Scenario : Inflow volumes that are greater in 99 years out of 100 (99% POE)

In the inflow graphs below actual inflow data is compared to these four scenarios. Inflows are measured in Giga Litres (GL).

Murray System - Dartmouth Dam

Graph of Dartmouth Reservoir Inflows for 2023-24 Actual data until July.
Dartmouth Dam Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Dartmouth Reservoir inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 51  8.0  18  44  111
July 2024 44  12  24  75  185
August 2024 99  16  36  98  220
September 2024 66  21  61  122  239
October 2024 69  22  43  116  250
November 2024 60  5.0  26  63  147
December 2024 85  2.0  15  35  83
January 2025 23  2.0  7.0  20  47
February 2025 19  0.0  4.0  13  34
March 2025 26  1.0  4.0  12  36
April 2025 9.7  2.0  4.0  15  40
May 2025    4.0  10  23  68
June 2025    8.0  18  44  111

Murray System - Hume Dam

Graph of Hume Dam Inflows for 2023-24. Actual data until July compared to four climate scenarios.
Hume Dam Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Hume Dam inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 25  22  48  118  340
July 2024 88  34  69  192  674
August 2024 200  12  103  296  749
September 2024 93  33  157  326  781
October 2024 103  20  100  315  786
November 2024 61  1.0  68  187  453
December 2024 107  0.0  34  111  250
January 2025 20  0.0  16  72  159
February 2025 12  1.0  12  45  99
March 2025 15  0.0  8.0  43  113
April 2025 3.7  6.0  12  50  138
May 2025    9.0  26  73  196
June 2025    22  48  118  340

Goulburn System - Lake Eildon

Graph of Lake Eildon Inflows for 2023-24. Actual data until July compared to four climate scenarios.
Graph of Lake Eildon Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Lake Eildon inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 28  11  22  71  239
July 2024 101  12  55  163  404
August 2024 179  16  84  228  489
September 2024 84  20  78  200  424
October 2024 77  10  47  140  349
November 2024 50  9.0  27  73  180
December 2024 51  8.0  15  40  107
January 2025 17.2  5.0  10  23  48
February 2025 9.1  2.0  6.0  15  33
March 2025 9.8  0.0  5.0  15  36
April 2025 8.0  4.0  7.0  17  43
May 2025    8.0  13  31  102
June 2025    11  22  71  239

Goulburn System - Goulburn Weir

Graph of Goulburn Weir Inflows for 2023-24. Actual data until July compared to four climate scenarios.
Goulburn Weir Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Goulburn Weir inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 23  13  22  61  219
July 2024 90  22  43  114  336
August 2024 153  8.0  55  164  383
September 2024 43  21  56  151  372
October 2024 61  22  42  110  314
November 2024 27  11  24  66  184
December 2024 43  8.0  16  42  104
January 2025 23  8.0  13  27  58
February 2025 18  4.0  8.0  19  41
March 2025 24  5.0  9.0  20  46
April 2025 22  6.0  10  23  56
May 2025    10  15  37  114
June 2025    13  22  61  219

Ovens System - Lake Buffalo

Graph of Lake Buffalo Inflows for 2023-24. Actual data until July compared to four climate scenarios.
Lake Buffalo Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Lake Buffalo inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 6.0  0.0  4.8  22  74
July 2024 20  0.1  11  44  132
August 2024 38  0.1  15  61  147
September 2024 18  0.1  14  55  129
October 2024 17  0.0  9.2  40  118
November 2024 20  0.0  5.1  22  71
December 2024 43  0.6  2.6  10  38
January 2025 5.3  0.1  1.4  5.1  15
February 2025 2.0  0.1  0.6  2.5  8.5
March 2025 2.5  0.2  0.5  2.2  10
April 2025 1.9  0.2  0.6  2.8  14
May 2025    0.3  1.4  6.9  31
June 2025    0.0  4.8  22  74

Ovens System - Lake William Hovell

Graph of Lake William Hovell Inflows for 2023-24. Actual data until July compared to four climate scenarios.
Lake William Hovell Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Lake William Hovell inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 3.1  0.2  3.0  12  38
July 2024 12  0.0  6.7  25  61
August 2024 19  0.0  11  34  66
September 2024 9.1  0.0  9.9  31  58
October 2024 10  0.0  6.5  21  47
November 2024 11  0.8  3.8  11  27
December 2024 24  0.9  2.2  5.9  16
January 2025 3.0  0.5  1.2  3.1  7.4
February 2025 1.2  0.3  0.6  1.6  4.7
March 2025 1.3  0.3  0.5  1.5  6.0
April 2025 1.0  0.2  0.4  1.8  8.2
May 2025    0.3  1.0  4.1  17
June 2025    0.2  3.0  12  38

Broken System - Lake Nillahcootie

Graph of Lake Nillahcootie Inflows for 2023-24. Actual data until July compared to four climate scenarios.
Lake Nillahcootie Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Lake Nillahcootie inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 0.4  0.0  0.2  1.5  12
July 2024 1.9  0.0  0.6  5.1  25
August 2024 3.0  0.0  1.1  9.1  28
September 2024 0.6  0.0  0.7  7.4  24
October 2024 0.7  0.0  0.2  3.4  19
November 2024 1.0  0.0  0.0  1.3  7.0
December 2024 1.9  0.0  0.0  0.4  2.6
January 2025 0.0  0.0  0.0  0.1  1.1
February 2025 0.0  0.0  0.0  0.0  0.7
March 2025 0.0  0.0  0.0  0.1  1.2
April 2025 0.0  0.0  0.0  0.1  1.4
May 2025    0.0  0.0  0.4  3.2
June 2025    0.0  0.2  1.5  12

Loddon System - Cairn Curran Reservoir

Graph of Cairn Curran Reservoir Inflows for 2023-24. Actual data until July compared to four climate scenarios.
Cairn Curran Reservoir Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Cairn Curran Reservoir inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 0.4  0.0  0.4  3.5  26
July 2024 1.2  0.0  1.1  7.7  42
August 2024 2.7  0.0  1.9  14  61
September 2024 0.7  0.0  1.4  11  54
October 2024 1.3  0.0  0.6  4.8  29
November 2024 0.2  0.0  0.0  1.3  10
December 2024 0.0  0.0  0.0  0.5  4.0
January 2025 0.0  0.0  0.0  0.2  1.6
February 2025 0.0  0.0  0.0  0.1  2.2
March 2025 0.0  0.0  0.0  0.2  1.7
April 2025 0.0  0.0  0.0  0.4  2.4
May 2025    0.0  0.0  1.1  7.4
June 2025    0.0  0.4  3.5  26

Loddon System - Tullaroop Reservoir

Graph of Tullaroop Reservoir Inflows for 2023-24. Actual data until July compared to four climate scenarios.
Tullaroop Reservoir Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Tullaroop Reservoir inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 0.3  0.0  0.1  1.0  7.3
July 2024 0.7  0.1  0.3  2.2  18
August 2024 1.3  0.0  0.5  4.9  27
September 2024 0.4  0.0  0.6  5.4  27
October 2024 0.4  0.0  0.2  2.3  17
November 2024 0.2  0.0  0.1  0.9  6.4
December 2024 0.0  0.0  0.1  0.4  2.5
January 2025 0.0  0.0  0.0  0.2  1.3
February 2025 0.0  0.0  0.0  0.2  1.2
March 2025 0.0  0.0  0.1  0.3  1.0
April 2025 0.0  0.0  0.1  0.3  0.9
May 2025    0.0  0.1  0.5  2.4
June 2025    0.0  0.1  1.0  7.3

Campaspe System- Lake Eppalock

Graph of Lake Eppalock Inflows for 2023-24. Actual data until July compared to four climate scenarios.
Lake Eppalock Inflows for 2024/2025. Actual data compared to four climate scenarios.
Table of actual Lake Eppalock inflows for 2024/2025 compared to four climate scenarios
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
June 2024 0.2  0.0  0.0  3.2  38
July 2024 3.0  0.0  0.9  11  67
August 2024 7.2  0.0  2.0  21  85
September 2024 2.3  0.0  1.5  16  80
October 2024 2.5  0.0  0.3  6.5  46
November 2024 2.1  0.0  0.0  1.6  16
December 2024 0.5  0.0  0.0  0.2  5.5
January 2025 0.0  0.0  0.0  0.0  1.7
February 2025 0.0  0.0  0.0  0.0  2.0
March 2025 0.0  0.0  0.0  0.0  2.3
April 2025 0.0  0.0  0.0  0.0  2.7
May 2025    0.0  0.0  0.6  8.9
June 2025    0.0  0.0  3.2  38