Cottage Grove Lake Water Level History
Thirty-day lake-level chart, recent highs and lows, net change and daily summaries from the matched USGS station.
Cottage Grove Lake water-level chart
Source: U.S. Geological Survey monitoring station ↗. Recent measurements may be provisional.
What has Cottage Grove Lake been doing?
Across the available 30-day series, Cottage Grove Lake is falling overall. The measured range runs from 763.36 ft to 773.8 ft, with a net change of -10.44 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 | 763.36 ft | 763.47 ft | 763.57 ft |
| Oct 6 | 763.58 ft | 763.82 ft | 764.05 ft |
| Oct 5 | 764.06 ft | 764.30 ft | 764.54 ft |
| Oct 4 | 764.55 ft | 764.78 ft | 765.01 ft |
| Oct 3 | 765.02 ft | 765.25 ft | 765.48 ft |
| Oct 2 | 765.49 ft | 765.72 ft | 765.95 ft |
| Oct 1 | 765.96 ft | 766.18 ft | 766.41 ft |
| Sep 30 | 766.41 ft | 766.64 ft | 766.86 ft |
| Sep 29 | 766.86 ft | 767.09 ft | 767.33 ft |
| Sep 28 | 767.33 ft | 767.54 ft | 767.76 ft |
| Sep 27 | 767.77 ft | 767.98 ft | 768.19 ft |
| Sep 26 | 768.19 ft | 768.40 ft | 768.60 ft |
| Sep 25 | 768.60 ft | 768.80 ft | 769.01 ft |
| Sep 24 | 769.00 ft | 769.19 ft | 769.41 ft |
| Sep 23 | 769.41 ft | 769.61 ft | 769.81 ft |
| Sep 22 | 769.82 ft | 770.04 ft | 770.26 ft |
| Sep 21 | 770.26 ft | 770.48 ft | 770.70 ft |
| Sep 20 | 770.71 ft | 770.91 ft | 771.13 ft |
| Sep 19 | 771.13 ft | 771.34 ft | 771.55 ft |
| Sep 18 | 771.55 ft | 771.77 ft | 771.98 ft |
| Sep 17 | 771.99 ft | 772.20 ft | 772.40 ft |
| Sep 16 | 772.40 ft | 772.57 ft | 772.67 ft |
| Sep 15 | 772.67 ft | 772.74 ft | 772.81 ft |
| Sep 14 | 772.81 ft | 772.87 ft | 772.93 ft |
| Sep 13 | 772.93 ft | 772.99 ft | 773.05 ft |
| Sep 12 | 773.05 ft | 773.10 ft | 773.17 ft |
| Sep 11 | 773.17 ft | 773.24 ft | 773.31 ft |
| Sep 10 | 773.31 ft | 773.38 ft | 773.45 ft |
| Sep 9 | 773.45 ft | 773.52 ft | 773.59 ft |
| Sep 8 | 773.59 ft | 773.67 ft | 773.73 ft |
Cottage Grove Lake level-history FAQ
How has Cottage Grove Lake water level changed over the last 30 days?
Across the available 30-day sensor series, the net change is -10.44 ft and the overall direction is falling.
What was the highest Cottage Grove Lake level in the last 30 days?
The highest reading in the available 30-day series is 773.8 ft.
What was the lowest Cottage Grove Lake level in the last 30 days?
The lowest reading in the available 30-day series is 763.36 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.