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Apple River in Illinois

River46.4 mi

Around here

Around Apple River

5 mi

Data Source: Recreation.gov · Public land: USGS PAD-US

About this river

Apple River is a 46.4 mile river. Streamflow is measured at the USGS gauge Apple River near Hanover, IL (site 05419000). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1935 to 2026

Apple River typically runs highest in April, at a median 189 cfs, and lowest in September, at 63 cfs. The highest flow on record for any single day is 15,200 cfs, in 2017.

Show the numbers
Typical flow by month at Apple River near Hanover, IL, in cfs
MonthTypical (cfs)Usual range (cfs)
January7745 to 144
February9850 to 161
March16990 to 337
April189104 to 323
May161106 to 263
June14282 to 260
July10156 to 158
August7444 to 117
September6339 to 112
October6742 to 115
November7848 to 133
December7545 to 149

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 92 years of record. Statistics published by the US Geological Survey for Apple River near Hanover, IL (site 05419000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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