About this river
Molalla River is a 9.7 mile river near Riverplace Marina in Oregon. Streamflow is measured at the USGS gauge Molalla River near Canby, OR (site 14200000). The National Hydrography Dataset places it at stream order 8. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1929 to 2025
Molalla River typically runs highest in January, at a median 1,580 cfs, and lowest in September, at 73 cfs. The highest flow on record for any single day is 34,100 cfs, in 1965.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 1,580 | 928 to 2,920 | |
| February | 1,280 | 838 to 2,090 | |
| March | 1,410 | 882 to 2,180 | |
| April | 1,340 | 936 to 1,785 | |
| May | 908 | 535 to 1,380 | |
| June | 430 | 269 to 803 | |
| July | 144 | 112 to 222 | |
| August | 78 | 58 to 101 | |
| September | 73 | 57 to 122 | |
| October | 144 | 98 to 310 | |
| November | 926 | 420 to 2,065 | |
| December | 1,520 | 773 to 2,680 |
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 71 years of record. Statistics published by the US Geological Survey for Molalla River near Canby, OR (site 14200000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
6 mapped launches sit in the mapped area of Molalla River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Molalla 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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