About this river
Rio Hondo is a 5.1 mile river near Kayaks On the Water in California. Streamflow is measured at the USGS gauge Rio Hondo below Whittier Narrows Dam CA (site 11102300). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1967 to 2025
Rio Hondo typically runs highest in March, at a median 82 cfs, and lowest in August, at 4.5 cfs. The highest flow on record for any single day is 21,200 cfs, in 1983.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 62 | 9.1 to 142 | |
| February | 75 | 22 to 166 | |
| March | 82 | 16 to 171 | |
| April | 57 | 5.2 to 134 | |
| May | 40 | 0.0 to 126 | |
| June | 37 | 0.0 to 118 | |
| July | 19 | 0.0 to 86 | |
| August | 4.5 | 0.0 to 41 | |
| September | 7.3 | 0.0 to 73 | |
| October | 15 | 0.0 to 119 | |
| November | 39 | 0.0 to 135 | |
| December | 59 | 5.3 to 144 |
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 59 years of record. Statistics published by the US Geological Survey for Rio Hondo below Whittier Narrows Dam CA (site 11102300). 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 Rio Hondo'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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