Historical context
Weekly readings back to 2010 show how today compares with the worst droughts and the strongest winters on record.
Current: 75.0% on 14 Sept 2026 804 weekly readings
The record low and high
From a low of 18.4% in May 2017 — the depths of the Day Zero drought — to a high of 109.4% in Sept 2023.
Record low
18.4%
29 May 2017
Record high
109.4%
25 Sept 2023
Recent trend (2 years)
Two years of weekly readings — showing the seasonal rise-and-fall and year-on-year trajectory
Best years vs drought years vs now
The last two years overlaid month-for-month against the strongest and weakest stretches on record — showing where the current trajectory sits in context.
Recent storage (blue) tracks closer to the best run (teal) than the drought low (red)
Best 2-year run
Jul 2020 → Jul 2022
Average level: 85.1%
Lowest point in this run: 64.3%
Worst drought 2-year run
Jun 2015 → May 2017
Average level: 50.1%
Lowest point in this run: 18.4%
Same-week comparisons
The same week in each previous year, compared with today's 75.0%.
| Year | Date | Level | vs now |
|---|---|---|---|
| 2025 | 15 Sept 2025 | 91.8% | -16.8 |
| 2024 | 16 Sept 2024 | 100.7% | -25.7 |
| 2023 | 11 Sept 2023 | 101.9% | -26.9 |
| 2022 | 12 Sept 2022 | 86.0% | -11.0 |
| 2021 | 13 Sept 2021 | 101.0% | -26.0 |
| 2020 | 14 Sept 2020 | 96.4% | -21.4 |
| 2019 | 16 Sept 2019 | 81.5% | -6.5 |
| 2018 | 17 Sept 2018 | 69.6% | +5.4 |
| 2017 | 11 Sept 2017 | 36.8% | +38.2 |
| 2016 | 12 Sept 2016 | 56.4% | +18.6 |
Recent weekly archive
| Date | Combined | Last year | Change |
|---|---|---|---|
| 11 Aug 2026 | 78.3% | 89.3% | -11.0 |
| 03 Aug 2026 | 78.1% | 84.8% | -6.7 |
| 27 Jul 2026 | 78.6% | 83.7% | -5.1 |
| 20 Jul 2026 | 78.4% | 83.3% | -4.9 |
| 13 Jul 2026 | 78.0% | 82.3% | -4.3 |
| 06 Jul 2026 | 77.3% | 78.1% | -0.8 |
| 29 Jun 2026 | 74.9% | 73.0% | +1.9 |
| 22 Jun 2026 | 73.8% | 65.1% | +8.7 |
| 15 Jun 2026 | 73.6% | 64.8% | +8.8 |
| 08 Jun 2026 | 72.9% | 62.9% | +10.0 |
| 01 Jun 2026 | 72.4% | 60.2% | +12.2 |
| 25 May 2026 | 71.8% | 59.2% | +12.6 |
| 18 May 2026 | 70.8% | 59.2% | +11.6 |
| 11 May 2026 | 50.9% | 59.4% | -8.5 |
| 04 May 2026 | 48.3% | 59.9% | -11.6 |
| 28 Apr 2026 | 47.7% | 60.7% | -13.0 |
| 20 Apr 2026 | 45.1% | 62.0% | -16.9 |
| 13 Apr 2026 | 44.7% | 63.0% | -18.3 |
| 06 Apr 2026 | 45.9% | 63.8% | -17.9 |
| 30 Mar 2026 | 47.8% | 65.2% | -17.4 |
| 23 Mar 2026 | 49.2% | 66.5% | -17.3 |
| 16 Mar 2026 | 50.4% | 67.9% | -17.5 |
| 10 Mar 2026 | 51.7% | 69.2% | -17.5 |
| 02 Mar 2026 | 53.7% | 71.2% | -17.5 |