BirdTrout
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USGS Gauge 04136000 — Au Sable River near Red Oak, Michigan
Water temperature 53.6 °F. 2.0 °F below the five-year normal for this date. 774 cfs.
Open in BirdTrout44.67696, -84.29251 · 984 ft elevation · 1,006 sq mi drainage. This gauge on USGS Water Data →
This gauge is not reporting
- 53.6 °F Water temperature
- 774 Cubic ft / second
- -2.0 °F vs 5-yr normal
- 60.2 °FThis date last year
This gauge is not sending water temperature — it reported on only 11 of the last 30 days. USGS still answers for it, with the last value it ever sent and nothing to say the sensor has gone, so nothing on this page is presented as a current reading. The figure above is modelled: this gauge's own fitted line, its intercept plus its slope against the 4-day mean air temperature over it, fitted on its own daily record, built from 1,118 days of this gauge's own record. A gauge stopping does not unmake what it recorded while it ran, and the record below is the same record the line was fitted on. Its scatter against that record is ±2.0 °F, and it is a statement about what this water usually does at this air temperature, not about what it is doing. Everything below — the record, the monthly means, the thirty-day chart — is the gauge's own history and is unaffected. The normal is the mean of every reading at this gauge within 3 days of this calendar date in the previous years of record — 31 readings, averaging 59.2 °F.
The last thirty days
Daily means from USGS. A gap in the line is a gap in the record.
The record at this gauge
| Month | Mean temp | Mean flow |
|---|---|---|
| Jan | 33.8 °F | 734 |
| Feb | 34.2 °F | 703 |
| Mar | 38.3 °F | 1,021 |
| Apr | 46.3 °F | 1,570 |
| May | 56.7 °F | 1,065 |
| Jun | 63.3 °F | 823 |
| Jul | 66.2 °F | 758 |
| Aug | 63.3 °F | 672 |
| Sep | 58.0 °F | 649 |
| Oct | 50.0 °F | 663 |
| Nov | 40.9 °F | 710 |
| Dec | 35.6 °F | 758 |
- 74.8 °FWarmest, 2025-06-23
- 31.8 °FColdest, 2025-12-05
- 4,650Highest flow, 2026-04-14
- 440Lowest flow, 2025-02-18
Computed here from the last 5 years of USGS daily values at this gauge — 1,766 temperature days over 5.0 years and 1,826 flow days. These are not USGS-published normals, and a month with fewer than 20 days of record is left blank rather than averaged.
What this gauge predicts
This is one of the gauges this site fits an air-to-water model against, which is how the map colours water that has no gauge on it. July mean 66.35 °F; the fit explains 86% of the variance with a typical error of 2.036 °F.
The water it stands in
Au Sable River, classified Cold transitional large river by MDNR VSEC — the nearest reach carrying that classification is 0.03 mi from the gauge.
Snapped to NHD reach Au Sable River (60001900007171), 47.1 m away. That join is what lets the app paint this gauge's reading onto the reach it measures.
Other gauges near this one
- Nb Au Sable River at Kelloggs Br near Lovells, MI 6.8 mi · USGS 04135800
- Au Sable River at Mio, MI 8.0 mi · USGS 04136500
- South Branch Au Sable River near Luzerne, MI 9.1 mi · USGS 04135700
Dams near this gauge
- Mio 8.0 mi · 38 ft
A dam upstream of a gauge moves what the gauge reads. A hydro dam moves it on a release schedule this page does not know.
Access near this gauge
- Parmalee Bridge State Forest Campground 0.1 mi · boat launch · Au Sable River
- Whirlpool 2.6 mi · canoe launch · Au Sable River
- McMasters Bridge 5.2 mi · boat launch · Au Sable River
- Au Sable River At Camp 10 Road 5.2 mi · walk in
- Camp Ten Bridge 5.6 mi · boat launch · Mio Dam Pond - Au Sable River
- North Branch Au Sable River At Morley's 6.0 mi · walk in
Fly shops nearby
- Ausable River Outfitters8.0 mi · Mio
- Fuller's North Branch Outing Club12.8 mi · Lovells
- Gates Au Sable Lodge13.1 mi · Grayling
- Village Outfitters19.2 mi · Roscommon