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Big Muddy Creek in Montana

River42.0 mi
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Around here

Around Big Muddy Creek

5 mi

Public land: USGS PAD-US

About this river

Big Muddy Creek is a 42.0 mile river. Streamflow is measured at USGS gauge site 06183450. The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1979 to 2026

Big Muddy Creek typically runs highest in April, at a median 33 cfs, and lowest in January, at 2.0 cfs. The highest flow on record for any single day is 3,160 cfs, in 1999.

Show the numbers
Typical flow by month at USGS gauge 06183450, in cfs
MonthTypical (cfs)Usual range (cfs)
January2.00.8 to 4.0
February2.00.7 to 6.8
March244.5 to 115
April3320 to 55
May199.2 to 35
June114.5 to 27
July6.73.2 to 17
August2.70.7 to 6.2
September2.40.3 to 4.9
October5.53.2 to 8.3
November6.44.5 to 8.4
December4.62.5 to 6.5

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 48 years of record. Statistics published by the US Geological Survey for USGS gauge 06183450 (site 06183450). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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