MEDIAN FLOW RATE · 1 YEAR
68cfs 22.3% vs avg
Optimal band: 74–100 cfs
PERIOD HIGH
519cfs
PERIOD LOW
40cfs
RUNNABLE
30%
last 1 year in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
17.3in
≈ normal
17.34 in of precipitation so far this year — about average for this point in the season (normal 18.25 in).
YTD Total
17.3in
This year so far
Normal to Date
18.3in
30-yr average
Typical Range
14.2–22.0in
10th–90th pct YTD
Departure
-5%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.19" · normal 2.49" (1.0–4.0)
Feb: 1.41" · normal 2.10" (1.0–3.3)
Mar: 3.20" · normal 2.49" (1.1–4.0)
Apr: 5.48" · normal 3.59" (1.9–5.0)
May: 1.65" · normal 4.06" (2.3–6.2)
Jun: 3.40" (so far)· normal 3.69" (2.0–5.9)
Jul: normal 3.32" (2.1–4.3)
Aug: normal 3.43" (1.8–5.2)
Sep: normal 2.81" (1.2–4.7)
Oct: normal 2.88" (1.6–5.0)
Nov: normal 2.61" (1.1–3.7)
Dec: normal 2.28" (1.3–3.2)
Baseline 1991–2020 · Source: Open-Meteo07:22 PM
Your History · GRAND RIVER AT JACKSON, MI
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Weather Conditions
WEATHER CONDITIONS
TODAY
84°
60°
MON
93°
66°
TUE
92°
75°
WED
93°
75°
THU
93°
73°
FRI
94°
74°
SAT
92°
74°
FISH INDEX
Temperature
Too Hot
Wind
Calm
Pressure
Stable
Moon Phase
Peak Activity
DAYLIGHT
SUNRISE
06:03 AM
SUNSET
09:18 PM
15H 15M OF DAYLIGHT0H 50M REMAINING
MOON PHASE
Full Moon
98% illuminated
PEAK ACTIVITY
Station Location
42.2836, -84.4088Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-28 20:28 UTC
Site #04109000·USGS
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