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.

June 2025 Inflows 

Murray, Goulburn & Ovens System Storages

Table of inflows for June 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) 50,800 64,900 16,774 23,459 11,074 4,095
POE 44%  82% 96% 88% 74% 85%
% of Average 80%  36%  15% 24% 33% 23%

 

Broken, Loddon & Campaspe System Storages

Table of inflows for June 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) 100 14 158 0 72
POE 93% 98% 88% Min 87%
% of Average 2% 0% 5% 0% 0%

 

Year to Date Inflows: July 2024 to June 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 June 2025 Murray System Goulburn System Ovens System
Dartmouth Dam Hume Dam Lake Eildon Goulburn Weir Lake Buffalo Lake William Hovell
Inflow (ML) 529,272 720,634 465,527 513,680 160,680 85,414
POE 78%  94% 96% 88% 86% 89%
% of Average 67%  30% 37% 46% 43% 46%

 

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 June 2025 Broken System Loddon System Campaspe System
Lake Nillahcootie Cairn Curran Reservoir Tullaroop Reservoir Laanecoorie Reservoir Lake Eppalock
Inflow (ML) 7,207 4,883 3,031 1,415 13,505
POE 93%  96% 95% 94% 92%
% of Average 14%  5% 7% 3% 9%

 

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 26  8.0  18  44  111
July 2024 45  12  24  75  185
August 2024 56  16  36  98  220
September 2024 64  21  61  122  239
October 2024 65  22  43  116  250
November 2024 60  5.0  26  63  147
December 2024 80  2.0  15  35  83
January 2025 25  2.0  7.0  20  47
February 2025 15  0.0  4.0  13  34
March 2025 24  1.0  4.0  12  36
April 2025 20  2.0  4.0  15  40
May 2025 26  4.0  10  23  68
June 2025 51  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 50  22  48  118  340
July 2024 93  34  69  192  674
August 2024 107  12  103  296  749
September 2024 87  33  157  326  781
October 2024 101  20  100  315  786
November 2024 74  1.0  68  187  453
December 2024 107  0.0  34  111  250
January 2025 18  0.0  16  72  159
February 2025 28  1.0  12  45  99
March 2025 14  0.0  8.0  43  113
April 2025 3.9  6.0  12  50  138
May 2025 24  9.0  26  73  196
June 2025 65  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 95  12  55  163  404
August 2024 68  16  84  228  489
September 2024 75  20  78  200  424
October 2024 68  10  47  140  349
November 2024 39  9.0  27  73  180
December 2024 52  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 8.2  8.0  13  31  102
June 2025 17  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 91  22  43  114  336
August 2024 79  8.0  55  164  383
September 2024 53  21  56  151  372
October 2024 66  22  42  110  314
November 2024 42  11  24  66  184
December 2024 46  8.0  16  42  104
January 2025 26  8.0  13  27  58
February 2025 20  4.0  8.0  19  41
March 2025 29  5.0  9.0  20  46
April 2025 22  6.0  10  23  56
May 2025 16  10  15  37  114
June 2025 24  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 1.7  0.3  1.4  6.9  31
June 2025 11  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 1.0  0.3  1.0  4.1  17
June 2025 4.1  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  0.0  0.4  3.2
June 2025 0.1  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  0.0  1.1  7.4
June 2025 0.0  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  0.0  0.1  0.5  2.4
June 2025 0.2  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 0.0  0.0  0.0  3.2  38
July 2024 3.0  0.0  0.9  11  67
August 2024 4.1  0.0  2.0  21  85
September 2024 1.2  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  0.0  0.6  8.9
June 2025 0.1  0.0  0.0  3.2  38