Ross Reservoir Water Level History
Thirty-day lake-level chart, recent highs and lows, net change and daily summaries from the matched USGS station.
Ross Reservoir water-level chart
Source: U.S. Geological Survey monitoring station ↗. Recent measurements may be provisional.
What has Ross Reservoir been doing?
Across the available 30-day series, Ross Reservoir is falling overall. The measured range runs from 1,582.58 ft to 1,596.15 ft, with a net change of -13.57 ft.
Lake levels can respond to rainfall, watershed inflow, dam and hydropower operations, seasonal target elevations, evaporation and downstream release requirements. This page reports what the matched sensor measured; it does not infer why an operator changed a reservoir.
Recent daily levels
| Date | Low | Average | High |
|---|---|---|---|
| Oct 7 | 1582.58 ft | 1582.70 ft | 1582.82 ft |
| Oct 6 | 1582.82 ft | 1583.09 ft | 1583.31 ft |
| Oct 5 | 1583.31 ft | 1583.48 ft | 1583.62 ft |
| Oct 4 | 1583.65 ft | 1583.86 ft | 1584.00 ft |
| Oct 3 | 1584.04 ft | 1584.27 ft | 1584.44 ft |
| Oct 2 | 1584.47 ft | 1584.72 ft | 1584.93 ft |
| Oct 1 | 1584.93 ft | 1585.07 ft | 1585.14 ft |
| Sep 30 | 1585.16 ft | 1585.28 ft | 1585.35 ft |
| Sep 29 | 1585.30 ft | 1585.35 ft | 1585.42 ft |
| Sep 28 | 1585.40 ft | 1585.69 ft | 1585.90 ft |
| Sep 27 | 1585.92 ft | 1586.13 ft | 1586.32 ft |
| Sep 26 | 1586.34 ft | 1586.52 ft | 1586.67 ft |
| Sep 25 | 1586.67 ft | 1586.85 ft | 1587.04 ft |
| Sep 24 | 1587.07 ft | 1587.32 ft | 1587.55 ft |
| Sep 23 | 1587.57 ft | 1587.92 ft | 1588.25 ft |
| Sep 22 | 1588.29 ft | 1588.59 ft | 1588.86 ft |
| Sep 21 | 1588.89 ft | 1589.15 ft | 1589.43 ft |
| Sep 20 | 1589.46 ft | 1589.73 ft | 1589.99 ft |
| Sep 19 | 1590.02 ft | 1590.29 ft | 1590.49 ft |
| Sep 18 | 1590.52 ft | 1590.77 ft | 1591.01 ft |
| Sep 17 | 1591.04 ft | 1591.33 ft | 1591.62 ft |
| Sep 16 | 1591.65 ft | 1591.82 ft | 1592.00 ft |
| Sep 15 | 1592.03 ft | 1592.28 ft | 1592.59 ft |
| Sep 14 | 1592.63 ft | 1592.94 ft | 1593.14 ft |
| Sep 13 | 1593.16 ft | 1593.35 ft | 1593.58 ft |
| Sep 12 | 1593.62 ft | 1593.86 ft | 1594.12 ft |
| Sep 11 | 1594.15 ft | 1594.38 ft | 1594.56 ft |
| Sep 10 | 1594.58 ft | 1594.80 ft | 1595.07 ft |
| Sep 9 | 1595.14 ft | 1595.41 ft | 1595.66 ft |
| Sep 8 | 1595.71 ft | 1595.89 ft | 1596.02 ft |
Ross Reservoir level-history FAQ
How has Ross Reservoir water level changed over the last 30 days?
Across the available 30-day sensor series, the net change is -13.57 ft and the overall direction is falling.
What was the highest Ross Reservoir level in the last 30 days?
The highest reading in the available 30-day series is 1,596.15 ft.
What was the lowest Ross Reservoir level in the last 30 days?
The lowest reading in the available 30-day series is 1,582.58 ft.
Are historical USGS lake readings final?
Not always. Recent readings may be marked provisional and can be revised by the source agency after quality review.