USGS · 04116000

GRAND RIVER

USGS · 04116000LIVE

GRAND RIVER AT IONIA, MI

IONIA TOWNSHIP, MI42.9720°N, -85.0692°W Updated 36 min ago

FLOW RATE

1,060cfs

GAUGE HT

8.92ft

AIR TEMP

83°F

WIND

6mph SE

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

1,060cfs 56.2% vs avg

Optimal band: 1,063–1,438 cfs

PERIOD HIGH

1,290cfs

PERIOD LOW

1,040cfs

RUNNABLE

93%

last 1 day in band

Gauge Height

8.92ft

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

19.4in

≈ normal

19.36 in of precipitation so far this year — about average for this point in the season (normal 18.15 in).

YTD Total

19.4in

This year so far

Normal to Date

18.1in

30-yr average

Typical Range

13.8–21.8in

10th–90th pct YTD

Departure

+7%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.22" · normal 2.38" (1.0–4.2)

Jan

Feb: 1.00" · normal 1.96" (0.9–3.4)

Feb

Mar: 4.31" · normal 2.39" (1.0–3.6)

Mar

Apr: 6.05" · normal 3.82" (2.4–5.7)

Apr

May: 1.32" · normal 4.01" (1.9–6.3)

May

Jun: 4.46" (so far)· normal 3.71" (1.9–5.2)

Jun

Jul: normal 3.28" (1.9–4.2)

Jul

Aug: normal 3.33" (1.7–5.5)

Aug

Sep: normal 2.80" (1.1–4.8)

Sep

Oct: normal 3.19" (1.4–5.5)

Oct

Nov: normal 2.60" (1.4–4.5)

Nov

Dec: normal 2.22" (1.0–3.3)

Dec

Baseline 1991–2020 · Source: Open-Meteo07:21 PM

Your History · GRAND RIVER AT IONIA, MI

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Weather Conditions

WEATHER CONDITIONS

TODAY

85°

60°

MON

95°

69°

TUE

91°

75°

WED

92°

76°

THU

93°

75°

FRI

93°

74°

SAT

94°

74°

TIME

SUN

NOW

MON

TUE

WED

THU

FRI

TEMP

hourly forecast

84°

mild

84°

82°

80°

77°

75°

74°

73°

71°

70°

69°

70°

73°

78°

81°

84°

86°

88°

90°

92°

93°

95°

94°

93°

90°

87°

84°

82°

80°

78°

77°

76°

75°

76°

79°

81°

84°

87°

89°

90°

91°

90°

89°

87°

85°

82°

81°

80°

79°

78°

77°

76°

78°

81°

84°

86°

88°

89°

90°

91°

92°

91°

89°

87°

83°

81°

80°

78°

76°

75°

76°

79°

82°

85°

87°

89°

91°

93°

91°

90°

87°

83°

81°

80°

79°

78°

77°

76°

75°

74°

75°

79°

81°

84°

87°

89°

91°

92°

WIND

mph · gust · dir

5mph SE

G 7 mph

G10

ESE

NNE

ESE

G14

SSE

G16

SSE

G17

SSE

G12

G17

SSE

G23

SSE

G18

SSE

G18

SSE

G18

SSE

G17

SSE

G17

SSE

G15

G14

G19

G20

SSW

G24

SSW

G28

SSW

G18

SSW

G19

SSW

G17

G15

SSW

G16

SSW

G16

SSW

G15

SSW

G15

SSW

G18

SSW

G22

G26

G23

G21

G20

G22

WSW

G23

WSW

G23

WSW

G22

WSW

G22

WSW

G24

G25

G26

G30

G32

WSW

G30

WSW

G30

WSW

G29

WSW

G29

WSW

G28

WSW

G28

WSW

G27

WSW

G26

WSW

G23

WSW

G21

WSW

G19

WSW

G17

WSW

G17

WSW

G17

WSW

G17

WSW

G18

WSW

G20

WSW

G20

WSW

G21

WSW

G23

G25

G26

G28

G30

G29

G27

G26

G24

G23

G21

G19

G18

WSW

G16

G15

WSW

G16

WSW

G16

WSW

G15

WSW

G14

WSW

G11

G13

G20

G24

G26

G22

G24

G22

G18

WSW

G17

WSW

G18

WSW

G20

WSW

G22

WSW

G20

WSW

G17

WSW

G15

G14

G13

WSW

G13

WSW

PRECIP

chance %

10%

13%

19%

15%

14%

21%

19%

CLOUDS

cover %

100%

overcast

100%

38%

100%

61%

100%

65%

57%

100%

50%

33%

19%

14%

100%

65%

46%

13%

15%

100%

34%

77%

100%

35%

100%

12%

87%

25%

11%

67%

100%

25%

13%

100%

40%

18%

16%

18%

31%

40%

36%

28%

21%

PRESSURE

hPa · trend

991

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Too Hot

Wind

Light

Pressure

Stable

Moon Phase

Peak Activity

DAYLIGHT

SUNRISE

06:03 AM

SUNSET

09:23 PM

15H 20M OF DAYLIGHT2H 2M REMAINING

MOON PHASE

Full Moon

98% illuminated

PEAK ACTIVITY

Station Location

42.9720, -85.0692

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DATA · USGS · NOAA · NWSUPDATED 2026-06-28 19:21 UTC

Site #04116000·USGS

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