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 70.7 °F.
The last thirty days
Water temperature, °F · daily mean
2026-08-2071.2–78.4 °F2026-09-18
Streamflow, cfs · daily mean
2026-08-201,660–2,630 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
35.1 °F
3,506
Feb
36.9 °F
4,287
Mar
45.6 °F
5,793
Apr
54.6 °F
6,664
May
65.0 °F
4,394
Jun
73.7 °F
3,253
Jul
77.5 °F
3,405
Aug
75.7 °F
2,402
Sep
70.8 °F
1,857
Oct
59.2 °F
2,584
Nov
47.2 °F
2,805
Dec
38.3 °F
2,980
83.7 °FWarmest, 2025-06-26
31.8 °FColdest, 2025-01-20
11,000Highest flow, 2026-04-18
1,070Lowest flow, 2025-09-17
Computed here from the last 5 years of USGS daily values at this gauge —
1,804 temperature days over 5.0 years and 1,825 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 77.64 °F; the fit explains
87% of the variance with a typical error of
2.241 °F.
The water it stands in
Saint Joseph 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 Saint Joseph River
(60002600007615), 5.9 m away. That join is
what lets the app paint this gauge's reading onto the reach it measures.