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Missouri River in Missouri

River45.0 mi

Around here

Around Missouri River

Two Rivers National Wildlife Refuge9.3 miMississippi River - Upper18.3 mi10 mi

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

About this river

Missouri River is a 45.0 mile river. Streamflow is measured at the USGS gauge Missouri River at St. Charles, MO (site 06935965). The National Hydrography Dataset places it at stream order 10. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

2000 to 2026

Missouri River typically runs highest in June, at a median 137,000 cfs, and lowest in January, at 43,800 cfs. The highest flow on record for any single day is 505,000 cfs, in 2017.

Show the numbers
Typical flow by month at Missouri River at St. Charles, MO, in cfs
MonthTypical (cfs)Usual range (cfs)
January43,80032,800 to 62,200
February54,80037,500 to 82,200
March69,10047,000 to 124,000
April93,85062,350 to 138,500
May126,00083,200 to 182,000
June137,00091,550 to 197,000
July97,30059,700 to 144,000
August67,30052,000 to 101,000
September56,45047,350 to 100,500
October52,30045,400 to 85,800
November55,45045,400 to 75,350
December45,80033,700 to 65,600

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 Missouri River at St. Charles, MO (site 06935965). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

8 mapped launches sit in the mapped area of Missouri River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

  • Simpson Park Lake (East)Simpson Park LakePublic
  • Simpson Park Lake (West)Simpson Park LakePublic
  • Weldon Spring Conservation AreaMissouri RiverPublic
  • Creve Coeur Park Lake #3Creve Coeur LakePublic
  • Creve Coeur Park Lake #2Creve Coeur LakePublic
  • Creve Coeur Park Lake #1Creve Coeur LakePublic
  • Blanchette Landing AccessMissouri RiverPublic
  • Spanish LakeSpanish LakePublic
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