About this river
West Branch Du Page River is a 2.1 mile stream near Harborside Marina in Illinois. Streamflow is measured at the USGS gauge West Branch DU Page River near Naperville, IL (site 05540130). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1989 to 2026
West Branch Du Page River typically runs highest in April, at a median 174 cfs, and lowest in September, at 56 cfs. The highest flow on record for any single day is 4,960 cfs, in 1996.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 90 | 66 to 159 | |
| February | 101 | 69 to 189 | |
| March | 155 | 112 to 240 | |
| April | 174 | 109 to 281 | |
| May | 162 | 92 to 298 | |
| June | 126 | 63 to 213 | |
| July | 77 | 52 to 144 | |
| August | 69 | 46 to 136 | |
| September | 56 | 41 to 100 | |
| October | 59 | 43 to 128 | |
| November | 77 | 52 to 141 | |
| December | 90 | 60 to 143 |
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 38 years of record. Statistics published by the US Geological Survey for West Branch DU Page River near Naperville, IL (site 05540130). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show West Branch Du Page River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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