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Bass Factory Guide Service

Big Sulphur Creek near Clearlake Oaks, CA

River15.5 mi
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Around here

Around Big Sulphur Creek

Boat-in Sites (Lake Sonoma)8.1 miLake Sonoma7.3 mi5 mi

Data Source: Recreation.gov · Public land: USGS PAD-US

About this river

Big Sulphur Creek is a 15.5 mile river near Bass Factory Guide Service in California. Streamflow is measured at the USGS gauge Big Sulphur C at G Resort near Cloverdale CA (site 11463170). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1981 to 2026

Big Sulphur Creek typically runs highest in February, at a median 31 cfs, and lowest in September, at 0.9 cfs. The highest flow on record for any single day is 3,920 cfs, in 1986.

Show the numbers
Typical flow by month at Big Sulphur C at G Resort near Cloverdale CA, in cfs
MonthTypical (cfs)Usual range (cfs)
January2711 to 99
February3114 to 107
March3016 to 105
April179.9 to 39
May8.95.2 to 14
June4.52.7 to 6.3
July1.91.1 to 3.0
August1.10.7 to 1.5
September0.90.6 to 1.2
October1.00.6 to 1.4
November3.11.5 to 9.7
December164.6 to 65

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 46 years of record. Statistics published by the US Geological Survey for Big Sulphur C at G Resort near Cloverdale CA (site 11463170). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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