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 — 31 readings,
averaging 63.9 °F.
The last thirty days
Water temperature, °F · daily mean
2026-08-2063.1–70.5 °F2026-09-18
Streamflow, cfs · daily mean
2026-08-201,100–1,610 cfs2026-09-18
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
34.0 °F
1,033
Feb
33.9 °F
1,024
Mar
37.4 °F
1,417
Apr
46.3 °F
2,034
May
58.3 °F
1,435
Jun
67.5 °F
1,159
Jul
71.7 °F
1,094
Aug
69.8 °F
1,023
Sep
64.1 °F
996
Oct
54.4 °F
993
Nov
42.4 °F
1,027
Dec
34.9 °F
1,070
75.4 °FWarmest, 2025-07-17
32.4 °FColdest, 2022-01-27
6,240Highest flow, 2026-04-14
560Lowest flow, 2025-01-21
Computed here from the last 5 years of USGS daily values at this gauge —
1,826 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.
The water it stands in
Au Sable River, classified Cold transitional large river by MDNR VSEC — the nearest reach carrying that classification is 2.62 mi
from the gauge.
Snapped to NHD reach Au Sable River
(60001900005995), 58.9 m away. That join is
what lets the app paint this gauge's reading onto the reach it measures.