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USGS Gauge 04121650 — Muskegon River at Big Rapids, Michigan

Water temperature 58.6 °F. 2.9 °F below the five-year normal for this date.

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43.69363, -85.46754 · 886 ft elevation · 1,515 sq mi drainage. This gauge on USGS Water Data →

Right now

Live from USGS — the numbers above are current rather than whenever the page was written. The normal is the mean of every reading at this gauge within 3 days of this calendar date in the previous years of record — 30 readings, averaging 65.0 °F.

The last thirty days

Water temperature, °F · daily mean
2026-08-20 62.1–73.9 °F 2026-09-18

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 33.0 °F —
Feb 33.5 °F —
Mar 38.5 °F —
Apr 48.7 °F —
May 60.1 °F —
Jun 68.8 °F —
Jul 72.9 °F —
Aug 70.0 °F —
Sep 64.0 °F —
Oct 53.4 °F —
Nov 41.5 °F —
Dec 34.6 °F —

Computed here from the last 5 years of USGS daily values at this gauge — 1,824 temperature days over 5.0 years and 0 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 72.89 °F; the fit explains 90% of the variance with a typical error of 2.005 °F.

The water it stands in

Muskegon River.

We hold no coldwater classification for this river, so the page makes no claim about one. The gauge is here because it stands close to water that does carry a designation.

Snapped to NHD reach Muskegon River (60002500020861), 11.9 m away. That join is what lets the app paint this gauge's reading onto the reach it measures.

Other gauges near this one

Dams near this gauge

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

Fly shops nearby

Open this water on the map →Every reach around it coloured by today's water temperature, with the access points along it.