Lake Superior at Grand Marais
Lake Superior at Grand Marais read 183.424 m above IGLD 1985 at .
That is within the normal range for the date.
- Up 0.052 m in 24 hours.
- Down 0.07 m in 7 days.
Long views: the past year, the past decade and the whole record
Normal range and official levels
The normal range for 5 October is 183.25 m to 183.77 m: the 10th to 90th percentile of the daily averages from 28 September to 12 October in 60 years between 1966 and 2025.
Records
- Highest daily average in our series since 19 January 1966: 183.97 m on 21 October 2019.
- Lowest daily average in our series since 19 January 1966: 182.75 m on 19 March 2007.
About this gauge
Grand Marais is a gauge on Lake Superior in Minnesota, United States.
It lies at 47.7486° N, 90.3413° W.
Its readings come from NOAA's Center for Operational Oceanographic Products and Services (CO-OPS).
Heights are given above IGLD 1985, the datum the source names (IGLD 1985).
The newest reading is provisional: the source may still correct it.