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Around East Fork Trinity River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
East Fork Trinity River is a 16.4 mile river. Streamflow is measured at the USGS gauge Trinity R above Coffee C near Trinity Center CA (site 11523200). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1958 to 2026
East Fork Trinity River typically runs highest in May, at a median 859 cfs, and lowest in September, at 37 cfs. The highest flow on record for any single day is 18,900 cfs, in 1974.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 255 | 124 to 494 |
| February | 370 | 221 to 628 |
| March | 505 | 352 to 790 |
| April | 767 | 509 to 1,165 |
| May | 859 | 455 to 1,380 |
| June | 253 | 149 to 658 |
| July | 75 | 61 to 119 |
| August | 44 | 36 to 59 |
| September | 37 | 30 to 45 |
| October | 41 | 32 to 56 |
| November | 79 | 47 to 165 |
| December | 148 | 70 to 324 |
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 69 years of record. Statistics published by the US Geological Survey for Trinity R above Coffee C near Trinity Center CA (site 11523200). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show East Fork Trinity 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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