USGS · 040970647

LITTLE PORTAGE CR RIVER

USGS · 040970647LIVE

LITTLE PORTAGE CR AT LANE ST AT MENDON, MI

MENDON, MI42.0111°N, -85.4572°W Updated 20 min ago

FLOW RATE

19.1cfs

GAUGE HT

1.70ft

WATER TEMP

75°F

AIR TEMP

80°F

WIND

4mph WNW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

19.1cfs 0.3% vs avg

Optimal band: 18–24 cfs

PERIOD HIGH

21.8cfs

PERIOD LOW

18.7cfs

RUNNABLE

100%

last 1 day in band

Gauge Height

1.70ft

Water Temperature

74.7°F

Weather Map

Loading weather map…

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

21.5in

≈ normal

21.46 in of precipitation so far this year — about average for this point in the season (normal 21.69 in).

YTD Total

21.5in

This year so far

Normal to Date

21.7in

30-yr average

Typical Range

16.1–26.3in

10th–90th pct YTD

Departure

-1%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.16" · normal 2.74" (1.1–4.4)

Jan

Feb: 1.14" · normal 2.25" (1.1–3.6)

Feb

Mar: 4.13" · normal 2.73" (1.3–4.5)

Mar

Apr: 5.94" · normal 3.82" (2.3–5.3)

Apr

May: 1.93" · normal 4.34" (2.1–5.9)

May

Jun: 4.53" · normal 4.19" (2.3–6.4)

Jun

Jul: 1.62" (so far)· normal 3.76" (2.3–4.9)

Jul

Aug: normal 3.63" (1.9–5.9)

Aug

Sep: normal 3.00" (1.4–4.9)

Sep

Oct: normal 3.25" (1.6–5.7)

Oct

Nov: normal 2.89" (1.4–4.6)

Nov

Dec: normal 2.48" (1.4–3.6)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:05 UTC

Your History · LITTLE PORTAGE CR AT LANE ST AT MENDON, MI

Track your history

Sign in to track your sessions at LITTLE PORTAGE CR AT LANE ST AT MENDON, MI — best days, monthly trends, and time on the water.

Station Location

42.0111, -85.4572

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-07-14 00:45 UTC

Site #040970647·USGS

Create a free account to save favorites, set flow alerts, and track conditions