About this river
Olsen Creek is a 2.3 mile stream near Anacortes Kayak Tours in Washington. Streamflow is measured at the USGS gauge Olsen Creek near Bellingham, WA (site 12202300). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1968 to 2026
Olsen Creek typically runs highest in January, at a median 12 cfs, and lowest in August, at 0.4 cfs. The highest flow on record for any single day is 951 cfs, in 2004.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 12 | 7.6 to 22 | |
| February | 9.1 | 6.0 to 15 | |
| March | 11 | 7.5 to 16 | |
| April | 9.2 | 5.4 to 14 | |
| May | 3.6 | 2.1 to 5.9 | |
| June | 1.7 | 0.9 to 4.3 | |
| July | 0.7 | 0.4 to 1.2 | |
| August | 0.4 | 0.2 to 0.6 | |
| September | 0.5 | 0.3 to 1.1 | |
| October | 2.3 | 0.9 to 4.0 | |
| November | 8.9 | 5.2 to 19 | |
| December | 11 | 6.0 to 18 |
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 26 years of record. Statistics published by the US Geological Survey for Olsen Creek near Bellingham, WA (site 12202300). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Olsen Creek'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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